1 /* perl.h 2 * 3 * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001 4 * 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others 5 * 6 * You may distribute under the terms of either the GNU General Public 7 * License or the Artistic License, as specified in the README file. 8 * 9 */ 10 11 #ifndef H_PERL 12 #define H_PERL 1 13 14 #ifdef PERL_FOR_X2P 15 /* 16 * This file is being used for x2p stuff. 17 * Above symbol is defined via -D in 'x2p/Makefile.SH' 18 * Decouple x2p stuff from some of perls more extreme eccentricities. 19 */ 20 #undef MULTIPLICITY 21 #undef USE_STDIO 22 #define USE_STDIO 23 #endif /* PERL_FOR_X2P */ 24 25 #ifdef PERL_MICRO 26 # include "uconfig.h" 27 #else 28 # include "config.h" 29 #endif 30 31 /* this is used for functions which take a depth trailing 32 * argument under debugging */ 33 #ifdef DEBUGGING 34 #define _pDEPTH ,U32 depth 35 #define _aDEPTH ,depth 36 #else 37 #define _pDEPTH 38 #define _aDEPTH 39 #endif 40 41 /* NOTE 1: that with gcc -std=c89 the __STDC_VERSION__ is *not* defined 42 * because the __STDC_VERSION__ became a thing only with C90. Therefore, 43 * with gcc, HAS_C99 will never become true as long as we use -std=c89. 44 45 * NOTE 2: headers lie. Do not expect that if HAS_C99 gets to be true, 46 * all the C99 features are there and are correct. */ 47 #if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \ 48 defined(_STDC_C99) || defined(__c99) 49 # define HAS_C99 1 50 #endif 51 52 /* See L<perlguts/"The Perl API"> for detailed notes on 53 * PERL_IMPLICIT_CONTEXT and PERL_IMPLICIT_SYS */ 54 55 /* XXX NOTE that from here --> to <-- the same logic is 56 * repeated in makedef.pl, so be certain to update 57 * both places when editing. */ 58 59 #ifdef USE_ITHREADS 60 # if !defined(MULTIPLICITY) 61 # define MULTIPLICITY 62 # endif 63 #endif 64 65 #ifdef PERL_GLOBAL_STRUCT_PRIVATE 66 # ifndef PERL_GLOBAL_STRUCT 67 # define PERL_GLOBAL_STRUCT 68 # endif 69 #endif 70 71 #ifdef PERL_GLOBAL_STRUCT 72 # ifndef MULTIPLICITY 73 # define MULTIPLICITY 74 # endif 75 #endif 76 77 #ifdef MULTIPLICITY 78 # ifndef PERL_IMPLICIT_CONTEXT 79 # define PERL_IMPLICIT_CONTEXT 80 # endif 81 #endif 82 83 /* undef WIN32 when building on Cygwin (for libwin32) - gph */ 84 #ifdef __CYGWIN__ 85 # undef WIN32 86 # undef _WIN32 87 #endif 88 89 #if defined(__SYMBIAN32__) || (defined(__VC32__) && defined(WINS)) 90 # ifndef SYMBIAN 91 # define SYMBIAN 92 # endif 93 #endif 94 95 #ifdef __SYMBIAN32__ 96 # include "symbian/symbian_proto.h" 97 #endif 98 99 /* Any stack-challenged places. The limit varies (and often 100 * is configurable), but using more than a kilobyte of stack 101 * is usually dubious in these systems. */ 102 #if defined(__SYMBIAN32__) 103 /* Symbian: need to work around the SDK features. * 104 * On WINS: MS VC5 generates calls to _chkstk, * 105 * if a "large" stack frame is allocated. * 106 * gcc on MARM does not generate calls like these. */ 107 # define USE_HEAP_INSTEAD_OF_STACK 108 #endif 109 110 /* Use the reentrant APIs like localtime_r and getpwent_r */ 111 /* Win32 has naturally threadsafe libraries, no need to use any _r variants. 112 * XXX KEEP makedef.pl copy of this code in sync */ 113 #if defined(USE_ITHREADS) && !defined(USE_REENTRANT_API) && !defined(NETWARE) && !defined(WIN32) 114 # define USE_REENTRANT_API 115 #endif 116 117 /* <--- here ends the logic shared by perl.h and makedef.pl */ 118 119 #undef START_EXTERN_C 120 #undef END_EXTERN_C 121 #undef EXTERN_C 122 #ifdef __cplusplus 123 # define START_EXTERN_C extern "C" { 124 # define END_EXTERN_C } 125 # define EXTERN_C extern "C" 126 #else 127 # define START_EXTERN_C 128 # define END_EXTERN_C 129 # define EXTERN_C extern 130 #endif 131 132 /* Fallback definitions in case we don't have definitions from config.h. 133 This should only matter for systems that don't use Configure and 134 haven't been modified to define PERL_STATIC_INLINE yet. 135 */ 136 #if !defined(PERL_STATIC_INLINE) 137 # ifdef HAS_STATIC_INLINE 138 # define PERL_STATIC_INLINE static inline 139 # else 140 # define PERL_STATIC_INLINE static 141 # endif 142 #endif 143 144 #if defined(PERL_GLOBAL_STRUCT) && !defined(PERL_GET_VARS) 145 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 146 EXTERN_C struct perl_vars* Perl_GetVarsPrivate(); 147 # define PERL_GET_VARS() Perl_GetVarsPrivate() /* see miniperlmain.c */ 148 # else 149 # define PERL_GET_VARS() PL_VarsPtr 150 # endif 151 #endif 152 153 /* this used to be off by default, now its on, see perlio.h */ 154 #define PERLIO_FUNCS_CONST 155 156 #define pVAR struct perl_vars* my_vars PERL_UNUSED_DECL 157 158 #ifdef PERL_GLOBAL_STRUCT 159 # define dVAR pVAR = (struct perl_vars*)PERL_GET_VARS() 160 #else 161 # define dVAR dNOOP 162 #endif 163 164 #ifdef PERL_IMPLICIT_CONTEXT 165 # ifndef MULTIPLICITY 166 # define MULTIPLICITY 167 # endif 168 # define tTHX PerlInterpreter* 169 # define pTHX tTHX my_perl PERL_UNUSED_DECL 170 # define aTHX my_perl 171 # define aTHXa(a) aTHX = (tTHX)a 172 # ifdef PERL_GLOBAL_STRUCT 173 # define dTHXa(a) dVAR; pTHX = (tTHX)a 174 # else 175 # define dTHXa(a) pTHX = (tTHX)a 176 # endif 177 # ifdef PERL_GLOBAL_STRUCT 178 # define dTHX dVAR; pTHX = PERL_GET_THX 179 # else 180 # define dTHX pTHX = PERL_GET_THX 181 # endif 182 # define pTHX_ pTHX, 183 # define aTHX_ aTHX, 184 # define pTHX_1 2 185 # define pTHX_2 3 186 # define pTHX_3 4 187 # define pTHX_4 5 188 # define pTHX_5 6 189 # define pTHX_6 7 190 # define pTHX_7 8 191 # define pTHX_8 9 192 # define pTHX_9 10 193 # define pTHX_12 13 194 # if defined(DEBUGGING) && !defined(PERL_TRACK_MEMPOOL) 195 # define PERL_TRACK_MEMPOOL 196 # endif 197 #else 198 # undef PERL_TRACK_MEMPOOL 199 #endif 200 201 #ifdef DEBUGGING 202 # define dTHX_DEBUGGING dTHX 203 #else 204 # define dTHX_DEBUGGING dNOOP 205 #endif 206 207 #define STATIC static 208 209 #ifndef PERL_CORE 210 /* Do not use these macros. They were part of PERL_OBJECT, which was an 211 * implementation of multiplicity using C++ objects. They have been left 212 * here solely for the sake of XS code which has incorrectly 213 * cargo-culted them. 214 */ 215 #define CPERLscope(x) x 216 #define CPERLarg void 217 #define CPERLarg_ 218 #define _CPERLarg 219 #define PERL_OBJECT_THIS 220 #define _PERL_OBJECT_THIS 221 #define PERL_OBJECT_THIS_ 222 #define CALL_FPTR(fptr) (*fptr) 223 #define MEMBER_TO_FPTR(name) name 224 #endif /* !PERL_CORE */ 225 226 #define CALLRUNOPS PL_runops 227 228 #define CALLREGCOMP(sv, flags) Perl_pregcomp(aTHX_ (sv),(flags)) 229 230 #define CALLREGCOMP_ENG(prog, sv, flags) (prog)->comp(aTHX_ sv, flags) 231 #define CALLREGEXEC(prog,stringarg,strend,strbeg,minend,sv,data,flags) \ 232 RX_ENGINE(prog)->exec(aTHX_ (prog),(stringarg),(strend), \ 233 (strbeg),(minend),(sv),(data),(flags)) 234 #define CALLREG_INTUIT_START(prog,sv,strbeg,strpos,strend,flags,data) \ 235 RX_ENGINE(prog)->intuit(aTHX_ (prog), (sv), (strbeg), (strpos), \ 236 (strend),(flags),(data)) 237 #define CALLREG_INTUIT_STRING(prog) \ 238 RX_ENGINE(prog)->checkstr(aTHX_ (prog)) 239 240 #define CALLREGFREE(prog) \ 241 Perl_pregfree(aTHX_ (prog)) 242 243 #define CALLREGFREE_PVT(prog) \ 244 if(prog && RX_ENGINE(prog)) RX_ENGINE(prog)->rxfree(aTHX_ (prog)) 245 246 #define CALLREG_NUMBUF_FETCH(rx,paren,usesv) \ 247 RX_ENGINE(rx)->numbered_buff_FETCH(aTHX_ (rx),(paren),(usesv)) 248 249 #define CALLREG_NUMBUF_STORE(rx,paren,value) \ 250 RX_ENGINE(rx)->numbered_buff_STORE(aTHX_ (rx),(paren),(value)) 251 252 #define CALLREG_NUMBUF_LENGTH(rx,sv,paren) \ 253 RX_ENGINE(rx)->numbered_buff_LENGTH(aTHX_ (rx),(sv),(paren)) 254 255 #define CALLREG_NAMED_BUFF_FETCH(rx, key, flags) \ 256 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_FETCH)) 257 258 #define CALLREG_NAMED_BUFF_STORE(rx, key, value, flags) \ 259 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), (value), ((flags) | RXapif_STORE)) 260 261 #define CALLREG_NAMED_BUFF_DELETE(rx, key, flags) \ 262 RX_ENGINE(rx)->named_buff(aTHX_ (rx),(key), NULL, ((flags) | RXapif_DELETE)) 263 264 #define CALLREG_NAMED_BUFF_CLEAR(rx, flags) \ 265 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_CLEAR)) 266 267 #define CALLREG_NAMED_BUFF_EXISTS(rx, key, flags) \ 268 RX_ENGINE(rx)->named_buff(aTHX_ (rx), (key), NULL, ((flags) | RXapif_EXISTS)) 269 270 #define CALLREG_NAMED_BUFF_FIRSTKEY(rx, flags) \ 271 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), NULL, ((flags) | RXapif_FIRSTKEY)) 272 273 #define CALLREG_NAMED_BUFF_NEXTKEY(rx, lastkey, flags) \ 274 RX_ENGINE(rx)->named_buff_iter(aTHX_ (rx), (lastkey), ((flags) | RXapif_NEXTKEY)) 275 276 #define CALLREG_NAMED_BUFF_SCALAR(rx, flags) \ 277 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, ((flags) | RXapif_SCALAR)) 278 279 #define CALLREG_NAMED_BUFF_COUNT(rx) \ 280 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, RXapif_REGNAMES_COUNT) 281 282 #define CALLREG_NAMED_BUFF_ALL(rx, flags) \ 283 RX_ENGINE(rx)->named_buff(aTHX_ (rx), NULL, NULL, flags) 284 285 #define CALLREG_PACKAGE(rx) \ 286 RX_ENGINE(rx)->qr_package(aTHX_ (rx)) 287 288 #if defined(USE_ITHREADS) 289 #define CALLREGDUPE(prog,param) \ 290 Perl_re_dup(aTHX_ (prog),(param)) 291 292 #define CALLREGDUPE_PVT(prog,param) \ 293 (prog ? RX_ENGINE(prog)->dupe(aTHX_ (prog),(param)) \ 294 : (REGEXP *)NULL) 295 #endif 296 297 /* some compilers impersonate gcc */ 298 #if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER) 299 # define PERL_IS_GCC 1 300 #endif 301 302 /* In case Configure was not used (we are using a "canned config" 303 * such as Win32, or a cross-compilation setup, for example) try going 304 * by the gcc major and minor versions. One useful URL is 305 * http://www.ohse.de/uwe/articles/gcc-attributes.html, 306 * but contrary to this information warn_unused_result seems 307 * not to be in gcc 3.3.5, at least. --jhi 308 * Also, when building extensions with an installed perl, this allows 309 * the user to upgrade gcc and get the right attributes, rather than 310 * relying on the list generated at Configure time. --AD 311 * Set these up now otherwise we get confused when some of the <*thread.h> 312 * includes below indirectly pull in <perlio.h> (which needs to know if we 313 * have HASATTRIBUTE_FORMAT). 314 */ 315 316 #ifndef PERL_MICRO 317 #if defined __GNUC__ && !defined(__INTEL_COMPILER) 318 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 1 || __GNUC__ > 3 /* 3.1 -> */ 319 # define HASATTRIBUTE_DEPRECATED 320 # endif 321 # if __GNUC__ >= 3 /* 3.0 -> */ /* XXX Verify this version */ 322 # define HASATTRIBUTE_FORMAT 323 # if defined __MINGW32__ 324 # define PRINTF_FORMAT_NULL_OK 325 # endif 326 # endif 327 # if __GNUC__ >= 3 /* 3.0 -> */ 328 # define HASATTRIBUTE_MALLOC 329 # endif 330 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 3 || __GNUC__ > 3 /* 3.3 -> */ 331 # define HASATTRIBUTE_NONNULL 332 # endif 333 # if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 || __GNUC__ > 2 /* 2.5 -> */ 334 # define HASATTRIBUTE_NORETURN 335 # endif 336 # if __GNUC__ >= 3 /* gcc 3.0 -> */ 337 # define HASATTRIBUTE_PURE 338 # endif 339 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 340 # define HASATTRIBUTE_UNUSED 341 # endif 342 # if __GNUC__ == 3 && __GNUC_MINOR__ == 3 && !defined(__cplusplus) 343 # define HASATTRIBUTE_UNUSED /* gcc-3.3, but not g++-3.3. */ 344 # endif 345 # if __GNUC__ == 3 && __GNUC_MINOR__ >= 4 || __GNUC__ > 3 /* 3.4 -> */ 346 # define HASATTRIBUTE_WARN_UNUSED_RESULT 347 # endif 348 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */ 349 # if __GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4 /* 4.7 -> */ 350 # define HASATTRIBUTE_ALWAYS_INLINE 351 # endif 352 #endif 353 #endif /* #ifndef PERL_MICRO */ 354 355 #ifdef HASATTRIBUTE_DEPRECATED 356 # define __attribute__deprecated__ __attribute__((deprecated)) 357 #endif 358 #ifdef HASATTRIBUTE_FORMAT 359 # define __attribute__format__(x,y,z) __attribute__((format(x,y,z))) 360 #endif 361 #ifdef HASATTRIBUTE_MALLOC 362 # define __attribute__malloc__ __attribute__((__malloc__)) 363 #endif 364 #ifdef HASATTRIBUTE_NONNULL 365 # define __attribute__nonnull__(a) __attribute__((nonnull(a))) 366 #endif 367 #ifdef HASATTRIBUTE_NORETURN 368 # define __attribute__noreturn__ __attribute__((noreturn)) 369 #endif 370 #ifdef HASATTRIBUTE_PURE 371 # define __attribute__pure__ __attribute__((pure)) 372 #endif 373 #ifdef HASATTRIBUTE_UNUSED 374 # define __attribute__unused__ __attribute__((unused)) 375 #endif 376 #ifdef HASATTRIBUTE_WARN_UNUSED_RESULT 377 # define __attribute__warn_unused_result__ __attribute__((warn_unused_result)) 378 #endif 379 #ifdef HASATTRIBUTE_ALWAYS_INLINE 380 /* always_inline is buggy in gcc <= 4.6 and causes compilation errors */ 381 # if !defined(PERL_IS_GCC) || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7 || __GNUC__ > 4) 382 # define __attribute__always_inline__ __attribute__((always_inline)) 383 # endif 384 #endif 385 386 /* If we haven't defined the attributes yet, define them to blank. */ 387 #ifndef __attribute__deprecated__ 388 # define __attribute__deprecated__ 389 #endif 390 #ifndef __attribute__format__ 391 # define __attribute__format__(x,y,z) 392 #endif 393 #ifndef __attribute__malloc__ 394 # define __attribute__malloc__ 395 #endif 396 #ifndef __attribute__nonnull__ 397 # define __attribute__nonnull__(a) 398 #endif 399 #ifndef __attribute__noreturn__ 400 # define __attribute__noreturn__ 401 #endif 402 #ifndef __attribute__pure__ 403 # define __attribute__pure__ 404 #endif 405 #ifndef __attribute__unused__ 406 # define __attribute__unused__ 407 #endif 408 #ifndef __attribute__warn_unused_result__ 409 # define __attribute__warn_unused_result__ 410 #endif 411 #ifndef __attribute__always_inline__ 412 # define __attribute__always_inline__ 413 #endif 414 415 /* Some OS warn on NULL format to printf */ 416 #ifdef PRINTF_FORMAT_NULL_OK 417 # define __attribute__format__null_ok__(x,y,z) __attribute__format__(x,y,z) 418 #else 419 # define __attribute__format__null_ok__(x,y,z) 420 #endif 421 422 /* 423 * Because of backward compatibility reasons the PERL_UNUSED_DECL 424 * cannot be changed from postfix to PERL_UNUSED_DECL(x). Sigh. 425 * 426 * Note that there are C compilers such as MetroWerks CodeWarrior 427 * which do not have an "inlined" way (like the gcc __attribute__) of 428 * marking unused variables (they need e.g. a #pragma) and therefore 429 * cpp macros like PERL_UNUSED_DECL cannot work for this purpose, even 430 * if it were PERL_UNUSED_DECL(x), which it cannot be (see above). 431 * 432 */ 433 434 #ifndef PERL_UNUSED_DECL 435 # define PERL_UNUSED_DECL __attribute__unused__ 436 #endif 437 438 /* gcc -Wall: 439 * for silencing unused variables that are actually used most of the time, 440 * but we cannot quite get rid of, such as "ax" in PPCODE+noargs xsubs, 441 * or variables/arguments that are used only in certain configurations. 442 */ 443 #ifndef PERL_UNUSED_ARG 444 # define PERL_UNUSED_ARG(x) ((void)sizeof(x)) 445 #endif 446 #ifndef PERL_UNUSED_VAR 447 # define PERL_UNUSED_VAR(x) ((void)sizeof(x)) 448 #endif 449 450 #if defined(USE_ITHREADS) || defined(PERL_GLOBAL_STRUCT) 451 # define PERL_UNUSED_CONTEXT PERL_UNUSED_ARG(my_perl) 452 #else 453 # define PERL_UNUSED_CONTEXT 454 #endif 455 456 /* gcc (-ansi) -pedantic doesn't allow gcc statement expressions, 457 * g++ allows them but seems to have problems with them 458 * (insane errors ensue). 459 * g++ does not give insane errors now (RMB 2008-01-30, gcc 4.2.2). 460 */ 461 #if defined(PERL_GCC_PEDANTIC) || \ 462 (defined(__GNUC__) && defined(__cplusplus) && \ 463 ((__GNUC__ < 4) || ((__GNUC__ == 4) && (__GNUC_MINOR__ < 2)))) 464 # ifndef PERL_GCC_BRACE_GROUPS_FORBIDDEN 465 # define PERL_GCC_BRACE_GROUPS_FORBIDDEN 466 # endif 467 #endif 468 469 /* Use PERL_UNUSED_RESULT() to suppress the warnings about unused results 470 * of function calls, e.g. PERL_UNUSED_RESULT(foo(a, b)). 471 * 472 * The main reason for this is that the combination of gcc -Wunused-result 473 * (part of -Wall) and the __attribute__((warn_unused_result)) cannot 474 * be silenced with casting to void. This causes trouble when the system 475 * header files use the attribute. 476 * 477 * Use PERL_UNUSED_RESULT sparingly, though, since usually the warning 478 * is there for a good reason: you might lose success/failure information, 479 * or leak resources, or changes in resources. 480 * 481 * But sometimes you just want to ignore the return value, e.g. on 482 * codepaths soon ending up in abort, or in "best effort" attempts, 483 * or in situations where there is no good way to handle failures. 484 * 485 * Sometimes PERL_UNUSED_RESULT might not be the most natural way: 486 * another possibility is that you can capture the return value 487 * and use PERL_UNUSED_VAR on that. 488 * 489 * The __typeof__() is used instead of typeof() since typeof() is not 490 * available under strict C89, and because of compilers masquerading 491 * as gcc (clang and icc), we want exactly the gcc extension 492 * __typeof__ and nothing else. 493 */ 494 #ifndef PERL_UNUSED_RESULT 495 # if defined(__GNUC__) && defined(HASATTRIBUTE_WARN_UNUSED_RESULT) 496 # define PERL_UNUSED_RESULT(v) STMT_START { __typeof__(v) z = (v); (void)sizeof(z); } STMT_END 497 # else 498 # define PERL_UNUSED_RESULT(v) ((void)(v)) 499 # endif 500 #endif 501 502 #if defined(_MSC_VER) 503 /* XXX older MSVC versions have a smallish macro buffer */ 504 #define PERL_SMALL_MACRO_BUFFER 505 #endif 506 507 /* on gcc (and clang), specify that a warning should be temporarily 508 * ignored; e.g. 509 * 510 * GCC_DIAG_IGNORE_DECL(-Wmultichar); 511 * char b = 'ab'; 512 * GCC_DIAG_RESTORE_DECL; 513 * 514 * based on http://dbp-consulting.com/tutorials/SuppressingGCCWarnings.html 515 * 516 * Note that "pragma GCC diagnostic push/pop" was added in GCC 4.6, Mar 2011; 517 * clang only pretends to be GCC 4.2, but still supports push/pop. 518 * 519 * Note on usage: all macros must be used at a place where a declaration 520 * or statement can occur, i.e., not in the middle of an expression. 521 * *_DIAG_IGNORE() and *_DIAG_RESTORE can be used in any such place, but 522 * must be used without a following semicolon. *_DIAG_IGNORE_DECL() and 523 * *_DIAG_RESTORE_DECL must be used with a following semicolon, and behave 524 * syntactically as declarations (like dNOOP). *_DIAG_IGNORE_STMT() 525 * and *_DIAG_RESTORE_STMT must be used with a following semicolon, 526 * and behave syntactically as statements (like NOOP). 527 * 528 */ 529 530 #if defined(__clang__) || defined(__clang) || \ 531 (defined( __GNUC__) && ((__GNUC__ * 100) + __GNUC_MINOR__) >= 406) 532 # define GCC_DIAG_PRAGMA(x) _Pragma (#x) 533 /* clang has "clang diagnostic" pragmas, but also understands gcc. */ 534 # define GCC_DIAG_IGNORE(x) _Pragma("GCC diagnostic push") \ 535 GCC_DIAG_PRAGMA(GCC diagnostic ignored #x) 536 # define GCC_DIAG_RESTORE _Pragma("GCC diagnostic pop") 537 #else 538 # define GCC_DIAG_IGNORE(w) 539 # define GCC_DIAG_RESTORE 540 #endif 541 #define GCC_DIAG_IGNORE_DECL(x) GCC_DIAG_IGNORE(x) dNOOP 542 #define GCC_DIAG_RESTORE_DECL GCC_DIAG_RESTORE dNOOP 543 #define GCC_DIAG_IGNORE_STMT(x) GCC_DIAG_IGNORE(x) NOOP 544 #define GCC_DIAG_RESTORE_STMT GCC_DIAG_RESTORE NOOP 545 /* for clang specific pragmas */ 546 #if defined(__clang__) || defined(__clang) 547 # define CLANG_DIAG_PRAGMA(x) _Pragma (#x) 548 # define CLANG_DIAG_IGNORE(x) _Pragma("clang diagnostic push") \ 549 CLANG_DIAG_PRAGMA(clang diagnostic ignored #x) 550 # define CLANG_DIAG_RESTORE _Pragma("clang diagnostic pop") 551 #else 552 # define CLANG_DIAG_IGNORE(w) 553 # define CLANG_DIAG_RESTORE 554 #endif 555 #define CLANG_DIAG_IGNORE_DECL(x) CLANG_DIAG_IGNORE(x) dNOOP 556 #define CLANG_DIAG_RESTORE_DECL CLANG_DIAG_RESTORE dNOOP 557 #define CLANG_DIAG_IGNORE_STMT(x) CLANG_DIAG_IGNORE(x) NOOP 558 #define CLANG_DIAG_RESTORE_STMT CLANG_DIAG_RESTORE NOOP 559 560 #if defined(_MSC_VER) && (_MSC_VER >= 1300) 561 # define MSVC_DIAG_IGNORE(x) __pragma(warning(push)) \ 562 __pragma(warning(disable : x)) 563 # define MSVC_DIAG_RESTORE __pragma(warning(pop)) 564 #else 565 # define MSVC_DIAG_IGNORE(x) 566 # define MSVC_DIAG_RESTORE 567 #endif 568 #define MSVC_DIAG_IGNORE_DECL(x) MSVC_DIAG_IGNORE(x) dNOOP 569 #define MSVC_DIAG_RESTORE_DECL MSVC_DIAG_RESTORE dNOOP 570 #define MSVC_DIAG_IGNORE_STMT(x) MSVC_DIAG_IGNORE(x) NOOP 571 #define MSVC_DIAG_RESTORE_STMT MSVC_DIAG_RESTORE NOOP 572 573 #define NOOP /*EMPTY*/(void)0 574 #define dNOOP struct Perl___notused_struct 575 576 #ifndef pTHX 577 /* Don't bother defining tTHX ; using it outside 578 * code guarded by PERL_IMPLICIT_CONTEXT is an error. 579 */ 580 # define pTHX void 581 # define pTHX_ 582 # define aTHX 583 # define aTHX_ 584 # define aTHXa(a) NOOP 585 # define dTHXa(a) dNOOP 586 # define dTHX dNOOP 587 # define pTHX_1 1 588 # define pTHX_2 2 589 # define pTHX_3 3 590 # define pTHX_4 4 591 # define pTHX_5 5 592 # define pTHX_6 6 593 # define pTHX_7 7 594 # define pTHX_8 8 595 # define pTHX_9 9 596 # define pTHX_12 12 597 #endif 598 599 #ifndef dVAR 600 # define dVAR dNOOP 601 #endif 602 603 /* these are only defined for compatibility; should not be used internally */ 604 #if !defined(pTHXo) && !defined(PERL_CORE) 605 # define pTHXo pTHX 606 # define pTHXo_ pTHX_ 607 # define aTHXo aTHX 608 # define aTHXo_ aTHX_ 609 # define dTHXo dTHX 610 # define dTHXoa(x) dTHXa(x) 611 #endif 612 613 #ifndef pTHXx 614 # define pTHXx PerlInterpreter *my_perl 615 # define pTHXx_ pTHXx, 616 # define aTHXx my_perl 617 # define aTHXx_ aTHXx, 618 # define dTHXx dTHX 619 #endif 620 621 /* Under PERL_IMPLICIT_SYS (used in Windows for fork emulation) 622 * PerlIO_foo() expands to PL_StdIO->pFOO(PL_StdIO, ...). 623 * dTHXs is therefore needed for all functions using PerlIO_foo(). */ 624 #ifdef PERL_IMPLICIT_SYS 625 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 626 # define dTHXs dVAR; dTHX 627 # else 628 # define dTHXs dTHX 629 # endif 630 #else 631 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 632 # define dTHXs dVAR 633 # else 634 # define dTHXs dNOOP 635 # endif 636 #endif 637 638 #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) && !defined(__cplusplus) 639 # ifndef PERL_USE_GCC_BRACE_GROUPS 640 # define PERL_USE_GCC_BRACE_GROUPS 641 # endif 642 #endif 643 644 /* 645 =head1 Miscellaneous Functions 646 647 =for apidoc AmnUu|void|STMT_START 648 649 STMT_START { statements; } STMT_END; 650 651 can be used as a single statement, as in 652 653 if (x) STMT_START { ... } STMT_END; else ... 654 655 These are often used in macro definitions. Note that you can't return a value 656 out of them. 657 658 =for apidoc AmnUhu|void|STMT_END 659 660 =cut 661 662 Trying to select a version that gives no warnings... 663 */ 664 #if !(defined(STMT_START) && defined(STMT_END)) 665 # ifdef PERL_USE_GCC_BRACE_GROUPS 666 # define STMT_START (void)( /* gcc supports "({ STATEMENTS; })" */ 667 # define STMT_END ) 668 # else 669 # define STMT_START do 670 # define STMT_END while (0) 671 # endif 672 #endif 673 674 #ifndef BYTEORDER /* Should never happen -- byteorder is in config.h */ 675 # define BYTEORDER 0x1234 676 #endif 677 678 #if 'A' == 65 && 'I' == 73 && 'J' == 74 && 'Z' == 90 679 #define ASCIIish 680 #else 681 #undef ASCIIish 682 #endif 683 684 /* 685 * The following contortions are brought to you on behalf of all the 686 * standards, semi-standards, de facto standards, not-so-de-facto standards 687 * of the world, as well as all the other botches anyone ever thought of. 688 * The basic theory is that if we work hard enough here, the rest of the 689 * code can be a lot prettier. Well, so much for theory. Sorry, Henry... 690 */ 691 692 /* define this once if either system, instead of cluttering up the src */ 693 #if defined(MSDOS) || defined(WIN32) || defined(NETWARE) 694 #define DOSISH 1 695 #endif 696 697 /* These exist only for back-compat with XS modules. */ 698 #ifndef PERL_CORE 699 #define VOL volatile 700 #define CAN_PROTOTYPE 701 #define _(args) args 702 #define I_LIMITS 703 #define I_STDARG 704 #define STANDARD_C 705 #endif 706 707 /* By compiling a perl with -DNO_TAINT_SUPPORT or -DSILENT_NO_TAINT_SUPPORT, 708 * you get a perl without taint support, but doubtlessly with a lesser 709 * degree of support. Do not do so unless you know exactly what it means 710 * technically, have a good reason to do so, and know exactly how the 711 * perl will be used. perls with -DSILENT_NO_TAINT_SUPPORT are considered 712 * a potential security risk due to flat out ignoring the security-relevant 713 * taint flags. This being said, a perl without taint support compiled in 714 * has marginal run-time performance benefits. 715 * SILENT_NO_TAINT_SUPPORT implies NO_TAINT_SUPPORT. 716 * SILENT_NO_TAINT_SUPPORT is the same as NO_TAINT_SUPPORT except it 717 * silently ignores -t/-T instead of throwing an exception. 718 * 719 * DANGER! Using NO_TAINT_SUPPORT or SILENT_NO_TAINT_SUPPORT 720 * voids your nonexistent warranty! 721 */ 722 #if defined(SILENT_NO_TAINT_SUPPORT) && !defined(NO_TAINT_SUPPORT) 723 # define NO_TAINT_SUPPORT 1 724 #endif 725 726 /* NO_TAINT_SUPPORT can be set to transform virtually all taint-related 727 * operations into no-ops for a very modest speed-up. Enable only if you 728 * know what you're doing: tests and CPAN modules' tests are bound to fail. 729 */ 730 #ifdef NO_TAINT_SUPPORT 731 # define TAINT NOOP 732 # define TAINT_NOT NOOP 733 # define TAINT_IF(c) NOOP 734 # define TAINT_ENV() NOOP 735 # define TAINT_PROPER(s) NOOP 736 # define TAINT_set(s) NOOP 737 # define TAINT_get 0 738 # define TAINTING_get 0 739 # define TAINTING_set(s) NOOP 740 # define TAINT_WARN_get 0 741 # define TAINT_WARN_set(s) NOOP 742 #else 743 /* Set to tainted if we are running under tainting mode */ 744 # define TAINT (PL_tainted = PL_tainting) 745 746 # define TAINT_NOT (PL_tainted = FALSE) /* Untaint */ 747 # define TAINT_IF(c) if (UNLIKELY(c)) { TAINT; } /* Conditionally taint */ 748 # define TAINT_ENV() if (UNLIKELY(PL_tainting)) { taint_env(); } 749 /* croak or warn if tainting */ 750 # define TAINT_PROPER(s) if (UNLIKELY(PL_tainting)) { \ 751 taint_proper(NULL, s); \ 752 } 753 # define TAINT_set(s) (PL_tainted = (s)) 754 # define TAINT_get (cBOOL(UNLIKELY(PL_tainted))) /* Is something tainted? */ 755 # define TAINTING_get (cBOOL(UNLIKELY(PL_tainting))) /* Is taint checking enabled? */ 756 # define TAINTING_set(s) (PL_tainting = (s)) 757 # define TAINT_WARN_get (PL_taint_warn) /* FALSE => tainting violations 758 are fatal 759 TRUE => they're just 760 warnings */ 761 # define TAINT_WARN_set(s) (PL_taint_warn = (s)) 762 #endif 763 764 /* flags used internally only within pp_subst and pp_substcont */ 765 #ifdef PERL_CORE 766 # define SUBST_TAINT_STR 1 /* string tainted */ 767 # define SUBST_TAINT_PAT 2 /* pattern tainted */ 768 # define SUBST_TAINT_REPL 4 /* replacement tainted */ 769 # define SUBST_TAINT_RETAINT 8 /* use re'taint' in scope */ 770 # define SUBST_TAINT_BOOLRET 16 /* return is boolean (don't taint) */ 771 #endif 772 773 /* XXX All process group stuff is handled in pp_sys.c. Should these 774 defines move there? If so, I could simplify this a lot. --AD 9/96. 775 */ 776 /* Process group stuff changed from traditional BSD to POSIX. 777 perlfunc.pod documents the traditional BSD-style syntax, so we'll 778 try to preserve that, if possible. 779 */ 780 #ifdef HAS_SETPGID 781 # define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp)) 782 #elif defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP) 783 # define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp)) 784 #elif defined(HAS_SETPGRP2) 785 # define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp)) 786 #endif 787 #if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP) 788 # define HAS_SETPGRP /* Well, effectively it does . . . */ 789 #endif 790 791 /* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes 792 our life easier :-) so we'll try it. 793 */ 794 #ifdef HAS_GETPGID 795 # define BSD_GETPGRP(pid) getpgid((pid)) 796 #elif defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP) 797 # define BSD_GETPGRP(pid) getpgrp((pid)) 798 #elif defined(HAS_GETPGRP2) 799 # define BSD_GETPGRP(pid) getpgrp2((pid)) 800 #endif 801 #if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP) 802 # define HAS_GETPGRP /* Well, effectively it does . . . */ 803 #endif 804 805 /* These are not exact synonyms, since setpgrp() and getpgrp() may 806 have different behaviors, but perl.h used to define USE_BSDPGRP 807 (prior to 5.003_05) so some extension might depend on it. 808 */ 809 #if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP) 810 # ifndef USE_BSDPGRP 811 # define USE_BSDPGRP 812 # endif 813 #endif 814 815 /* HP-UX 10.X CMA (Common Multithreaded Architecture) insists that 816 pthread.h must be included before all other header files. 817 */ 818 #if defined(USE_ITHREADS) && defined(PTHREAD_H_FIRST) && defined(I_PTHREAD) 819 # include <pthread.h> 820 #endif 821 822 #include <sys/types.h> 823 824 /* EVC 4 SDK headers includes a bad definition of MB_CUR_MAX in stdlib.h 825 which is included from stdarg.h. Bad definition not present in SD 2008 826 SDK headers. wince.h is not yet included, so we cant fix this from there 827 since by then MB_CUR_MAX will be defined from stdlib.h. 828 cewchar.h includes a correct definition of MB_CUR_MAX and it is copied here 829 since cewchar.h can't be included this early */ 830 #if defined(UNDER_CE) && (_MSC_VER < 1300) 831 # define MB_CUR_MAX 1uL 832 #endif 833 834 # ifdef I_WCHAR 835 # include <wchar.h> 836 # endif 837 838 # include <stdarg.h> 839 840 #ifdef I_STDINT 841 # include <stdint.h> 842 #endif 843 844 #include <ctype.h> 845 #include <float.h> 846 #include <limits.h> 847 848 #ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */ 849 #undef METHOD 850 #endif 851 852 #ifdef PERL_MICRO 853 # define NO_LOCALE 854 #endif 855 856 #ifdef I_LOCALE 857 # include <locale.h> 858 #endif 859 860 #ifdef I_XLOCALE 861 # include <xlocale.h> 862 #endif 863 864 /* If not forbidden, we enable locale handling if either 1) the POSIX 2008 865 * functions are available, or 2) just the setlocale() function. This logic is 866 * repeated in t/loc_tools.pl and makedef.pl; The three should be kept in 867 * sync. */ 868 #if ! defined(NO_LOCALE) 869 870 # if ! defined(NO_POSIX_2008_LOCALE) \ 871 && defined(HAS_NEWLOCALE) \ 872 && defined(HAS_USELOCALE) \ 873 && defined(HAS_DUPLOCALE) \ 874 && defined(HAS_FREELOCALE) \ 875 && defined(LC_ALL_MASK) 876 877 /* For simplicity, the code is written to assume that any platform advanced 878 * enough to have the Posix 2008 locale functions has LC_ALL. The final 879 * test above makes sure that assumption is valid */ 880 881 # define HAS_POSIX_2008_LOCALE 882 # define USE_LOCALE 883 # elif defined(HAS_SETLOCALE) 884 # define USE_LOCALE 885 # endif 886 #endif 887 888 #ifdef USE_LOCALE 889 # define HAS_SKIP_LOCALE_INIT /* Solely for XS code to test for this 890 #define */ 891 # if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \ 892 && defined(HAS_STRXFRM) 893 # define USE_LOCALE_COLLATE 894 # endif 895 # if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE) 896 # define USE_LOCALE_CTYPE 897 # endif 898 # if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC) 899 # define USE_LOCALE_NUMERIC 900 # endif 901 # if !defined(NO_LOCALE_MESSAGES) && defined(LC_MESSAGES) 902 # define USE_LOCALE_MESSAGES 903 # endif 904 # if !defined(NO_LOCALE_MONETARY) && defined(LC_MONETARY) 905 # define USE_LOCALE_MONETARY 906 # endif 907 # if !defined(NO_LOCALE_TIME) && defined(LC_TIME) 908 # define USE_LOCALE_TIME 909 # endif 910 # if !defined(NO_LOCALE_ADDRESS) && defined(LC_ADDRESS) 911 # define USE_LOCALE_ADDRESS 912 # endif 913 # if !defined(NO_LOCALE_IDENTIFICATION) && defined(LC_IDENTIFICATION) 914 # define USE_LOCALE_IDENTIFICATION 915 # endif 916 # if !defined(NO_LOCALE_MEASUREMENT) && defined(LC_MEASUREMENT) 917 # define USE_LOCALE_MEASUREMENT 918 # endif 919 # if !defined(NO_LOCALE_PAPER) && defined(LC_PAPER) 920 # define USE_LOCALE_PAPER 921 # endif 922 # if !defined(NO_LOCALE_TELEPHONE) && defined(LC_TELEPHONE) 923 # define USE_LOCALE_TELEPHONE 924 # endif 925 926 /* XXX The next few defines are unfortunately duplicated in makedef.pl, and 927 * changes here MUST also be made there */ 928 929 # if ! defined(HAS_SETLOCALE) && defined(HAS_POSIX_2008_LOCALE) 930 # define USE_POSIX_2008_LOCALE 931 # ifndef USE_THREAD_SAFE_LOCALE 932 # define USE_THREAD_SAFE_LOCALE 933 # endif 934 /* If compiled with 935 * -DUSE_THREAD_SAFE_LOCALE, will do so even 936 * on unthreaded builds */ 937 # elif (defined(USE_ITHREADS) || defined(USE_THREAD_SAFE_LOCALE)) \ 938 && ( defined(HAS_POSIX_2008_LOCALE) \ 939 || (defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1400)) \ 940 && ! defined(NO_THREAD_SAFE_LOCALE) 941 # ifndef USE_THREAD_SAFE_LOCALE 942 # define USE_THREAD_SAFE_LOCALE 943 # endif 944 # ifdef HAS_POSIX_2008_LOCALE 945 # define USE_POSIX_2008_LOCALE 946 # endif 947 # endif 948 #endif 949 950 /* Microsoft documentation reads in the change log for VS 2015: 951 * "The localeconv function declared in locale.h now works correctly when 952 * per-thread locale is enabled. In previous versions of the library, this 953 * function would return the lconv data for the global locale, not the 954 * thread's locale." 955 */ 956 #if defined(WIN32) && defined(USE_THREAD_SAFE_LOCALE) && _MSC_VER < 1900 957 # define TS_W32_BROKEN_LOCALECONV 958 #endif 959 960 #include <setjmp.h> 961 962 #ifdef I_SYS_PARAM 963 # ifdef PARAM_NEEDS_TYPES 964 # include <sys/types.h> 965 # endif 966 # include <sys/param.h> 967 #endif 968 969 /* On BSD-derived systems, <sys/param.h> defines BSD to a year-month 970 value something like 199306. This may be useful if no more-specific 971 feature test is available. 972 */ 973 #if defined(BSD) 974 # ifndef BSDish 975 # define BSDish 976 # endif 977 #endif 978 979 /* Use all the "standard" definitions */ 980 #include <stdlib.h> 981 982 /* If this causes problems, set i_unistd=undef in the hint file. */ 983 #ifdef I_UNISTD 984 # if defined(__amigaos4__) 985 # ifdef I_NETINET_IN 986 # include <netinet/in.h> 987 # endif 988 # endif 989 # include <unistd.h> 990 # if defined(__amigaos4__) 991 /* Under AmigaOS 4 newlib.library provides an environ. However using 992 * it doesn't give us enough control over inheritance of variables by 993 * subshells etc. so replace with custom version based on abc-shell 994 * code. */ 995 extern char **myenviron; 996 # undef environ 997 # define environ myenviron 998 # endif 999 #endif 1000 1001 /* for WCOREDUMP */ 1002 #ifdef I_SYS_WAIT 1003 # include <sys/wait.h> 1004 #endif 1005 1006 #ifdef __SYMBIAN32__ 1007 # undef _SC_ARG_MAX /* Symbian has _SC_ARG_MAX but no sysconf() */ 1008 #endif 1009 1010 #if defined(HAS_SYSCALL) && !defined(HAS_SYSCALL_PROTO) 1011 EXTERN_C int syscall(int, ...); 1012 #endif 1013 1014 #if defined(HAS_USLEEP) && !defined(HAS_USLEEP_PROTO) 1015 EXTERN_C int usleep(unsigned int); 1016 #endif 1017 1018 /* macros for correct constant construction. These are in C99 <stdint.h> 1019 * (so they will not be available in strict C89 mode), but they are nice, so 1020 * let's define them if necessary. */ 1021 #ifndef UINT16_C 1022 # if INTSIZE >= 2 1023 # define UINT16_C(x) ((U16_TYPE)x##U) 1024 # else 1025 # define UINT16_C(x) ((U16_TYPE)x##UL) 1026 # endif 1027 #endif 1028 1029 #ifndef UINT32_C 1030 # if INTSIZE >= 4 1031 # define UINT32_C(x) ((U32_TYPE)x##U) 1032 # else 1033 # define UINT32_C(x) ((U32_TYPE)x##UL) 1034 # endif 1035 #endif 1036 1037 #ifdef I_STDINT 1038 typedef intmax_t PERL_INTMAX_T; 1039 typedef uintmax_t PERL_UINTMAX_T; 1040 #endif 1041 1042 /* N.B. We use QUADKIND here instead of HAS_QUAD here, because that doesn't 1043 * actually mean what it has always been documented to mean (see RT #119753) 1044 * and is explicitly turned off outside of core with dire warnings about 1045 * removing the undef. */ 1046 1047 #if defined(QUADKIND) 1048 # undef PeRl_INT64_C 1049 # undef PeRl_UINT64_C 1050 /* Prefer the native integer types (int and long) over long long 1051 * (which is not C89) and Win32-specific __int64. */ 1052 # if QUADKIND == QUAD_IS_INT && INTSIZE == 8 1053 # define PeRl_INT64_C(c) (c) 1054 # define PeRl_UINT64_C(c) CAT2(c,U) 1055 # endif 1056 # if QUADKIND == QUAD_IS_LONG && LONGSIZE == 8 1057 # define PeRl_INT64_C(c) CAT2(c,L) 1058 # define PeRl_UINT64_C(c) CAT2(c,UL) 1059 # endif 1060 # if QUADKIND == QUAD_IS_LONG_LONG && defined(HAS_LONG_LONG) 1061 # define PeRl_INT64_C(c) CAT2(c,LL) 1062 # define PeRl_UINT64_C(c) CAT2(c,ULL) 1063 # endif 1064 # if QUADKIND == QUAD_IS___INT64 1065 # define PeRl_INT64_C(c) CAT2(c,I64) 1066 # define PeRl_UINT64_C(c) CAT2(c,UI64) 1067 # endif 1068 # ifndef PeRl_INT64_C 1069 # define PeRl_INT64_C(c) ((I64)(c)) /* last resort */ 1070 # define PeRl_UINT64_C(c) ((U64TYPE)(c)) 1071 # endif 1072 /* In OS X the INT64_C/UINT64_C are defined with LL/ULL, which will 1073 * not fly with C89-pedantic gcc, so let's undefine them first so that 1074 * we can redefine them with our native integer preferring versions. */ 1075 # if defined(PERL_DARWIN) && defined(PERL_GCC_PEDANTIC) 1076 # undef INT64_C 1077 # undef UINT64_C 1078 # endif 1079 # ifndef INT64_C 1080 # define INT64_C(c) PeRl_INT64_C(c) 1081 # endif 1082 # ifndef UINT64_C 1083 # define UINT64_C(c) PeRl_UINT64_C(c) 1084 # endif 1085 1086 # ifndef I_STDINT 1087 typedef I64TYPE PERL_INTMAX_T; 1088 typedef U64TYPE PERL_UINTMAX_T; 1089 # endif 1090 # ifndef INTMAX_C 1091 # define INTMAX_C(c) INT64_C(c) 1092 # endif 1093 # ifndef UINTMAX_C 1094 # define UINTMAX_C(c) UINT64_C(c) 1095 # endif 1096 1097 #else /* below QUADKIND is undefined */ 1098 1099 /* Perl doesn't work on 16 bit systems, so must be 32 bit */ 1100 # ifndef I_STDINT 1101 typedef I32TYPE PERL_INTMAX_T; 1102 typedef U32TYPE PERL_UINTMAX_T; 1103 # endif 1104 # ifndef INTMAX_C 1105 # define INTMAX_C(c) INT32_C(c) 1106 # endif 1107 # ifndef UINTMAX_C 1108 # define UINTMAX_C(c) UINT32_C(c) 1109 # endif 1110 1111 #endif /* no QUADKIND */ 1112 1113 #ifdef PERL_CORE 1114 1115 /* byte-swapping functions for big-/little-endian conversion */ 1116 # define _swab_16_(x) ((U16)( \ 1117 (((U16)(x) & UINT16_C(0x00ff)) << 8) | \ 1118 (((U16)(x) & UINT16_C(0xff00)) >> 8) )) 1119 1120 # define _swab_32_(x) ((U32)( \ 1121 (((U32)(x) & UINT32_C(0x000000ff)) << 24) | \ 1122 (((U32)(x) & UINT32_C(0x0000ff00)) << 8) | \ 1123 (((U32)(x) & UINT32_C(0x00ff0000)) >> 8) | \ 1124 (((U32)(x) & UINT32_C(0xff000000)) >> 24) )) 1125 1126 # ifdef HAS_QUAD 1127 # define _swab_64_(x) ((U64)( \ 1128 (((U64)(x) & UINT64_C(0x00000000000000ff)) << 56) | \ 1129 (((U64)(x) & UINT64_C(0x000000000000ff00)) << 40) | \ 1130 (((U64)(x) & UINT64_C(0x0000000000ff0000)) << 24) | \ 1131 (((U64)(x) & UINT64_C(0x00000000ff000000)) << 8) | \ 1132 (((U64)(x) & UINT64_C(0x000000ff00000000)) >> 8) | \ 1133 (((U64)(x) & UINT64_C(0x0000ff0000000000)) >> 24) | \ 1134 (((U64)(x) & UINT64_C(0x00ff000000000000)) >> 40) | \ 1135 (((U64)(x) & UINT64_C(0xff00000000000000)) >> 56) )) 1136 # endif 1137 1138 /* The old value was hard coded at 1008. (4096-16) seems to be a bit faster, 1139 at least on FreeBSD. YMMV, so experiment. */ 1140 #ifndef PERL_ARENA_SIZE 1141 #define PERL_ARENA_SIZE 4080 1142 #endif 1143 1144 /* Maximum level of recursion */ 1145 #ifndef PERL_SUB_DEPTH_WARN 1146 #define PERL_SUB_DEPTH_WARN 100 1147 #endif 1148 1149 #endif /* PERL_CORE */ 1150 1151 /* Maximum number of args that may be passed to an OP_MULTICONCAT op. 1152 * It determines the size of local arrays in S_maybe_multiconcat() and 1153 * pp_multiconcat(). 1154 */ 1155 #define PERL_MULTICONCAT_MAXARG 64 1156 1157 /* The indexes of fields of a multiconcat aux struct. 1158 * The fixed fields are followed by nargs+1 const segment lengths, 1159 * and if utf8 and non-utf8 differ, a second nargs+1 set for utf8. 1160 */ 1161 1162 #define PERL_MULTICONCAT_IX_NARGS 0 /* number of arguments */ 1163 #define PERL_MULTICONCAT_IX_PLAIN_PV 1 /* non-utf8 constant string */ 1164 #define PERL_MULTICONCAT_IX_PLAIN_LEN 2 /* non-utf8 constant string length */ 1165 #define PERL_MULTICONCAT_IX_UTF8_PV 3 /* utf8 constant string */ 1166 #define PERL_MULTICONCAT_IX_UTF8_LEN 4 /* utf8 constant string length */ 1167 #define PERL_MULTICONCAT_IX_LENGTHS 5 /* first of nargs+1 const segment lens */ 1168 #define PERL_MULTICONCAT_HEADER_SIZE 5 /* The number of fields of a 1169 multiconcat header */ 1170 1171 /* We no longer default to creating a new SV for GvSV. 1172 Do this before embed. */ 1173 #ifndef PERL_CREATE_GVSV 1174 # ifndef PERL_DONT_CREATE_GVSV 1175 # define PERL_DONT_CREATE_GVSV 1176 # endif 1177 #endif 1178 1179 #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) 1180 #define PERL_USES_PL_PIDSTATUS 1181 #endif 1182 1183 #if !defined(OS2) && !defined(WIN32) && !defined(DJGPP) && !defined(__SYMBIAN32__) 1184 #define PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 1185 #endif 1186 1187 #define MEM_SIZE Size_t 1188 1189 /* Round all values passed to malloc up, by default to a multiple of 1190 sizeof(size_t) 1191 */ 1192 #ifndef PERL_STRLEN_ROUNDUP_QUANTUM 1193 #define PERL_STRLEN_ROUNDUP_QUANTUM Size_t_size 1194 #endif 1195 1196 /* sv_grow() will expand strings by at least a certain percentage of 1197 the previously *used* length to avoid excessive calls to realloc(). 1198 The default is 25% of the current length. 1199 */ 1200 #ifndef PERL_STRLEN_EXPAND_SHIFT 1201 # define PERL_STRLEN_EXPAND_SHIFT 2 1202 #endif 1203 1204 /* This use of offsetof() requires /Zc:offsetof- for VS2017 (and presumably 1205 * onwards) when building Socket.xs, but we can just use a different definition 1206 * for STRUCT_OFFSET instead. */ 1207 #if defined(WIN32) && defined(_MSC_VER) && _MSC_VER >= 1910 1208 # define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m)) 1209 #else 1210 # include <stddef.h> 1211 # define STRUCT_OFFSET(s,m) offsetof(s,m) 1212 #endif 1213 1214 /* ptrdiff_t is C11, so undef it under pedantic builds. (Actually it is 1215 * in C89, but apparently there are platforms where it doesn't exist. See 1216 * thread beginning at http://nntp.perl.org/group/perl.perl5.porters/251541.) 1217 * */ 1218 #ifdef PERL_GCC_PEDANTIC 1219 # undef HAS_PTRDIFF_T 1220 #endif 1221 1222 #ifdef HAS_PTRDIFF_T 1223 # define Ptrdiff_t ptrdiff_t 1224 #else 1225 # define Ptrdiff_t SSize_t 1226 #endif 1227 1228 #ifndef __SYMBIAN32__ 1229 # include <string.h> 1230 #endif 1231 1232 /* This comes after <stdlib.h> so we don't try to change the standard 1233 * library prototypes; we'll use our own in proto.h instead. */ 1234 1235 #ifdef MYMALLOC 1236 # ifdef PERL_POLLUTE_MALLOC 1237 # ifndef PERL_EXTMALLOC_DEF 1238 # define Perl_malloc malloc 1239 # define Perl_calloc calloc 1240 # define Perl_realloc realloc 1241 # define Perl_mfree free 1242 # endif 1243 # else 1244 # define EMBEDMYMALLOC /* for compatibility */ 1245 # endif 1246 1247 # define safemalloc Perl_malloc 1248 # define safecalloc Perl_calloc 1249 # define saferealloc Perl_realloc 1250 # define safefree Perl_mfree 1251 # define CHECK_MALLOC_TOO_LATE_FOR_(code) STMT_START { \ 1252 if (!TAINTING_get && MallocCfg_ptr[MallocCfg_cfg_env_read]) \ 1253 code; \ 1254 } STMT_END 1255 # define CHECK_MALLOC_TOO_LATE_FOR(ch) \ 1256 CHECK_MALLOC_TOO_LATE_FOR_(MALLOC_TOO_LATE_FOR(ch)) 1257 # define panic_write2(s) write(2, s, strlen(s)) 1258 # define CHECK_MALLOC_TAINT(newval) \ 1259 CHECK_MALLOC_TOO_LATE_FOR_( \ 1260 if (newval) { \ 1261 PERL_UNUSED_RESULT(panic_write2("panic: tainting with $ENV{PERL_MALLOC_OPT}\n"));\ 1262 exit(1); }) 1263 # define MALLOC_CHECK_TAINT(argc,argv,env) STMT_START { \ 1264 if (doing_taint(argc,argv,env)) { \ 1265 MallocCfg_ptr[MallocCfg_skip_cfg_env] = 1; \ 1266 }} STMT_END; 1267 #else /* MYMALLOC */ 1268 # define safemalloc safesysmalloc 1269 # define safecalloc safesyscalloc 1270 # define saferealloc safesysrealloc 1271 # define safefree safesysfree 1272 # define CHECK_MALLOC_TOO_LATE_FOR(ch) ((void)0) 1273 # define CHECK_MALLOC_TAINT(newval) ((void)0) 1274 # define MALLOC_CHECK_TAINT(argc,argv,env) 1275 #endif /* MYMALLOC */ 1276 1277 /* diag_listed_as: "-T" is on the #! line, it must also be used on the command line */ 1278 #define TOO_LATE_FOR_(ch,what) Perl_croak(aTHX_ "\"-%c\" is on the #! line, it must also be used on the command line%s", (char)(ch), what) 1279 #define TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, "") 1280 #define MALLOC_TOO_LATE_FOR(ch) TOO_LATE_FOR_(ch, " with $ENV{PERL_MALLOC_OPT}") 1281 #define MALLOC_CHECK_TAINT2(argc,argv) MALLOC_CHECK_TAINT(argc,argv,NULL) 1282 1283 #ifndef memzero 1284 # define memzero(d,l) memset(d,0,l) 1285 #endif 1286 1287 #ifdef I_NETINET_IN 1288 # include <netinet/in.h> 1289 #endif 1290 1291 #ifdef I_ARPA_INET 1292 # include <arpa/inet.h> 1293 #endif 1294 1295 #ifdef I_SYS_STAT 1296 # include <sys/stat.h> 1297 #endif 1298 1299 /* Microsoft VC's sys/stat.h defines all S_Ixxx macros except S_IFIFO. 1300 This definition should ideally go into win32/win32.h, but S_IFIFO is 1301 used later here in perl.h before win32/win32.h is being included. */ 1302 #if !defined(S_IFIFO) && defined(_S_IFIFO) 1303 # define S_IFIFO _S_IFIFO 1304 #endif 1305 1306 /* The stat macros for Unisoft System V/88 (and derivatives 1307 like UTekV) are broken, sometimes giving false positives. Undefine 1308 them here and let the code below set them to proper values. 1309 1310 The ghs macro stands for GreenHills Software C-1.8.5 which 1311 is the C compiler for sysV88 and the various derivatives. 1312 This header file bug is corrected in gcc-2.5.8 and later versions. 1313 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */ 1314 1315 #if defined(m88k) && defined(ghs) 1316 # undef S_ISDIR 1317 # undef S_ISCHR 1318 # undef S_ISBLK 1319 # undef S_ISREG 1320 # undef S_ISFIFO 1321 # undef S_ISLNK 1322 #endif 1323 1324 #include <time.h> 1325 1326 #ifdef I_SYS_TIME 1327 # ifdef I_SYS_TIME_KERNEL 1328 # define KERNEL 1329 # endif 1330 # include <sys/time.h> 1331 # ifdef I_SYS_TIME_KERNEL 1332 # undef KERNEL 1333 # endif 1334 #endif 1335 1336 #if defined(HAS_TIMES) && defined(I_SYS_TIMES) 1337 # include <sys/times.h> 1338 #endif 1339 1340 #include <errno.h> 1341 1342 #if defined(WIN32) && defined(PERL_IMPLICIT_SYS) 1343 # define WIN32SCK_IS_STDSCK /* don't pull in custom wsock layer */ 1344 #endif 1345 1346 #if defined(HAS_SOCKET) && !defined(WIN32) /* WIN32 handles sockets via win32.h */ 1347 # include <sys/socket.h> 1348 # if defined(USE_SOCKS) && defined(I_SOCKS) 1349 # if !defined(INCLUDE_PROTOTYPES) 1350 # define INCLUDE_PROTOTYPES /* for <socks.h> */ 1351 # define PERL_SOCKS_NEED_PROTOTYPES 1352 # endif 1353 # include <socks.h> 1354 # ifdef PERL_SOCKS_NEED_PROTOTYPES /* keep cpp space clean */ 1355 # undef INCLUDE_PROTOTYPES 1356 # undef PERL_SOCKS_NEED_PROTOTYPES 1357 # endif 1358 # endif 1359 # ifdef I_NETDB 1360 # ifdef NETWARE 1361 # include<stdio.h> 1362 # endif 1363 # include <netdb.h> 1364 # endif 1365 # ifndef ENOTSOCK 1366 # ifdef I_NET_ERRNO 1367 # include <net/errno.h> 1368 # endif 1369 # endif 1370 #endif 1371 1372 /* sockatmark() is so new (2001) that many places might have it hidden 1373 * behind some -D_BLAH_BLAH_SOURCE guard. The __THROW magic is required 1374 * e.g. in Gentoo, see http://bugs.gentoo.org/show_bug.cgi?id=12605 */ 1375 #if defined(HAS_SOCKATMARK) && !defined(HAS_SOCKATMARK_PROTO) 1376 # if defined(__THROW) && defined(__GLIBC__) 1377 int sockatmark(int) __THROW; 1378 # else 1379 int sockatmark(int); 1380 # endif 1381 #endif 1382 1383 #if defined(__osf__) && defined(__cplusplus) && !defined(_XOPEN_SOURCE_EXTENDED) /* Tru64 "cxx" (C++), see hints/dec_osf.sh for why the _XOPEN_SOURCE_EXTENDED cannot be defined. */ 1384 EXTERN_C int fchdir(int); 1385 EXTERN_C int flock(int, int); 1386 EXTERN_C int fseeko(FILE *, off_t, int); 1387 EXTERN_C off_t ftello(FILE *); 1388 #endif 1389 1390 #if defined(__SUNPRO_CC) /* SUNWspro CC (C++) */ 1391 EXTERN_C char *crypt(const char *, const char *); 1392 #endif 1393 1394 #if defined(__cplusplus) && defined(__CYGWIN__) 1395 EXTERN_C char *crypt(const char *, const char *); 1396 #endif 1397 1398 /* 1399 =head1 Errno 1400 1401 =for apidoc m|void|SETERRNO|int errcode|int vmserrcode 1402 1403 Set C<errno>, and on VMS set C<vaxc$errno>. 1404 1405 =for apidoc mn|void|dSAVEDERRNO 1406 1407 Declare variables needed to save C<errno> and any operating system 1408 specific error number. 1409 1410 =for apidoc mn|void|dSAVE_ERRNO 1411 1412 Declare variables needed to save C<errno> and any operating system 1413 specific error number, and save them for optional later restoration 1414 by C<RESTORE_ERRNO>. 1415 1416 =for apidoc mn|void|SAVE_ERRNO 1417 1418 Save C<errno> and any operating system specific error number for 1419 optional later restoration by C<RESTORE_ERRNO>. Requires 1420 C<dSAVEDERRNO> or C<dSAVE_ERRNO> in scope. 1421 1422 =for apidoc mn|void|RESTORE_ERRNO 1423 1424 Restore C<errno> and any operating system specific error number that 1425 was saved by C<dSAVE_ERRNO> or C<RESTORE_ERRNO>. 1426 1427 =cut 1428 */ 1429 1430 #ifdef SETERRNO 1431 # undef SETERRNO /* SOCKS might have defined this */ 1432 #endif 1433 1434 #ifdef VMS 1435 # define SETERRNO(errcode,vmserrcode) \ 1436 STMT_START { \ 1437 set_errno(errcode); \ 1438 set_vaxc_errno(vmserrcode); \ 1439 } STMT_END 1440 # define dSAVEDERRNO int saved_errno; unsigned saved_vms_errno 1441 # define dSAVE_ERRNO int saved_errno = errno; unsigned saved_vms_errno = vaxc$errno 1442 # define SAVE_ERRNO ( saved_errno = errno, saved_vms_errno = vaxc$errno ) 1443 # define RESTORE_ERRNO SETERRNO(saved_errno, saved_vms_errno) 1444 1445 # define LIB_INVARG LIB$_INVARG 1446 # define RMS_DIR RMS$_DIR 1447 # define RMS_FAC RMS$_FAC 1448 # define RMS_FEX RMS$_FEX 1449 # define RMS_FNF RMS$_FNF 1450 # define RMS_IFI RMS$_IFI 1451 # define RMS_ISI RMS$_ISI 1452 # define RMS_PRV RMS$_PRV 1453 # define SS_ACCVIO SS$_ACCVIO 1454 # define SS_DEVOFFLINE SS$_DEVOFFLINE 1455 # define SS_IVCHAN SS$_IVCHAN 1456 # define SS_NORMAL SS$_NORMAL 1457 # define SS_NOPRIV SS$_NOPRIV 1458 # define SS_BUFFEROVF SS$_BUFFEROVF 1459 #else 1460 # define LIB_INVARG 0 1461 # define RMS_DIR 0 1462 # define RMS_FAC 0 1463 # define RMS_FEX 0 1464 # define RMS_FNF 0 1465 # define RMS_IFI 0 1466 # define RMS_ISI 0 1467 # define RMS_PRV 0 1468 # define SS_ACCVIO 0 1469 # define SS_DEVOFFLINE 0 1470 # define SS_IVCHAN 0 1471 # define SS_NORMAL 0 1472 # define SS_NOPRIV 0 1473 # define SS_BUFFEROVF 0 1474 #endif 1475 1476 #ifdef WIN32 1477 # define dSAVEDERRNO int saved_errno; DWORD saved_win32_errno 1478 # define dSAVE_ERRNO int saved_errno = errno; DWORD saved_win32_errno = GetLastError() 1479 # define SAVE_ERRNO ( saved_errno = errno, saved_win32_errno = GetLastError() ) 1480 # define RESTORE_ERRNO ( errno = saved_errno, SetLastError(saved_win32_errno) ) 1481 #endif 1482 1483 #ifdef OS2 1484 # define dSAVEDERRNO int saved_errno; unsigned long saved_os2_errno 1485 # define dSAVE_ERRNO int saved_errno = errno; unsigned long saved_os2_errno = Perl_rc 1486 # define SAVE_ERRNO ( saved_errno = errno, saved_os2_errno = Perl_rc ) 1487 # define RESTORE_ERRNO ( errno = saved_errno, Perl_rc = saved_os2_errno ) 1488 #endif 1489 1490 #ifndef SETERRNO 1491 # define SETERRNO(errcode,vmserrcode) (errno = (errcode)) 1492 #endif 1493 1494 #ifndef dSAVEDERRNO 1495 # define dSAVEDERRNO int saved_errno 1496 # define dSAVE_ERRNO int saved_errno = errno 1497 # define SAVE_ERRNO (saved_errno = errno) 1498 # define RESTORE_ERRNO (errno = saved_errno) 1499 #endif 1500 1501 /* 1502 =head1 Warning and Dieing 1503 1504 =for apidoc Amn|SV *|ERRSV 1505 1506 Returns the SV for C<$@>, creating it if needed. 1507 1508 =for apidoc Am|void|CLEAR_ERRSV 1509 1510 Clear the contents of C<$@>, setting it to the empty string. 1511 1512 This replaces any read-only SV with a fresh SV and removes any magic. 1513 1514 =for apidoc Am|void|SANE_ERRSV 1515 1516 Clean up ERRSV so we can safely set it. 1517 1518 This replaces any read-only SV with a fresh writable copy and removes 1519 any magic. 1520 1521 =cut 1522 */ 1523 1524 #define ERRSV GvSVn(PL_errgv) 1525 1526 /* contains inlined gv_add_by_type */ 1527 #define CLEAR_ERRSV() STMT_START { \ 1528 SV ** const svp = &GvSV(PL_errgv); \ 1529 if (!*svp) { \ 1530 *svp = newSVpvs(""); \ 1531 } else if (SvREADONLY(*svp)) { \ 1532 SvREFCNT_dec_NN(*svp); \ 1533 *svp = newSVpvs(""); \ 1534 } else { \ 1535 SV *const errsv = *svp; \ 1536 SvPVCLEAR(errsv); \ 1537 SvPOK_only(errsv); \ 1538 if (SvMAGICAL(errsv)) { \ 1539 mg_free(errsv); \ 1540 } \ 1541 } \ 1542 } STMT_END 1543 1544 /* contains inlined gv_add_by_type */ 1545 #define SANE_ERRSV() STMT_START { \ 1546 SV ** const svp = &GvSV(PL_errgv); \ 1547 if (!*svp) { \ 1548 *svp = newSVpvs(""); \ 1549 } else if (SvREADONLY(*svp)) { \ 1550 SV *dupsv = newSVsv(*svp); \ 1551 SvREFCNT_dec_NN(*svp); \ 1552 *svp = dupsv; \ 1553 } else { \ 1554 SV *const errsv = *svp; \ 1555 if (SvMAGICAL(errsv)) { \ 1556 mg_free(errsv); \ 1557 } \ 1558 } \ 1559 } STMT_END 1560 1561 1562 #ifdef PERL_CORE 1563 # define DEFSV (0 + GvSVn(PL_defgv)) 1564 # define DEFSV_set(sv) \ 1565 (SvREFCNT_dec(GvSV(PL_defgv)), GvSV(PL_defgv) = SvREFCNT_inc(sv)) 1566 # define SAVE_DEFSV \ 1567 ( \ 1568 save_gp(PL_defgv, 0), \ 1569 GvINTRO_off(PL_defgv), \ 1570 SAVEGENERICSV(GvSV(PL_defgv)), \ 1571 GvSV(PL_defgv) = NULL \ 1572 ) 1573 #else 1574 # define DEFSV GvSVn(PL_defgv) 1575 # define DEFSV_set(sv) (GvSV(PL_defgv) = (sv)) 1576 # define SAVE_DEFSV SAVESPTR(GvSV(PL_defgv)) 1577 #endif 1578 1579 #ifndef errno 1580 extern int errno; /* ANSI allows errno to be an lvalue expr. 1581 * For example in multithreaded environments 1582 * something like this might happen: 1583 * extern int *_errno(void); 1584 * #define errno (*_errno()) */ 1585 #endif 1586 1587 #define UNKNOWN_ERRNO_MSG "(unknown)" 1588 1589 #ifdef VMS 1590 #define Strerror(e) strerror((e), vaxc$errno) 1591 #else 1592 #define Strerror(e) strerror(e) 1593 #endif 1594 1595 #ifdef I_SYS_IOCTL 1596 # ifndef _IOCTL_ 1597 # include <sys/ioctl.h> 1598 # endif 1599 #endif 1600 1601 #if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000) 1602 # ifdef HAS_SOCKETPAIR 1603 # undef HAS_SOCKETPAIR 1604 # endif 1605 # ifdef I_NDBM 1606 # undef I_NDBM 1607 # endif 1608 #endif 1609 1610 #ifndef HAS_SOCKETPAIR 1611 # ifdef HAS_SOCKET 1612 # define socketpair Perl_my_socketpair 1613 # endif 1614 #endif 1615 1616 #if INTSIZE == 2 1617 # define htoni htons 1618 # define ntohi ntohs 1619 #else 1620 # define htoni htonl 1621 # define ntohi ntohl 1622 #endif 1623 1624 /* Configure already sets Direntry_t */ 1625 #if defined(I_DIRENT) 1626 # include <dirent.h> 1627 #elif defined(I_SYS_NDIR) 1628 # include <sys/ndir.h> 1629 #elif defined(I_SYS_DIR) 1630 # include <sys/dir.h> 1631 #endif 1632 1633 /* 1634 * The following gobbledygook brought to you on behalf of __STDC__. 1635 * (I could just use #ifndef __STDC__, but this is more bulletproof 1636 * in the face of half-implementations.) 1637 */ 1638 1639 #if defined(I_SYSMODE) 1640 #include <sys/mode.h> 1641 #endif 1642 1643 #ifndef S_IFMT 1644 # ifdef _S_IFMT 1645 # define S_IFMT _S_IFMT 1646 # else 1647 # define S_IFMT 0170000 1648 # endif 1649 #endif 1650 1651 #ifndef S_ISDIR 1652 # define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR) 1653 #endif 1654 1655 #ifndef S_ISCHR 1656 # define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR) 1657 #endif 1658 1659 #ifndef S_ISBLK 1660 # ifdef S_IFBLK 1661 # define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK) 1662 # else 1663 # define S_ISBLK(m) (0) 1664 # endif 1665 #endif 1666 1667 #ifndef S_ISREG 1668 # define S_ISREG(m) ((m & S_IFMT) == S_IFREG) 1669 #endif 1670 1671 #ifndef S_ISFIFO 1672 # ifdef S_IFIFO 1673 # define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO) 1674 # else 1675 # define S_ISFIFO(m) (0) 1676 # endif 1677 #endif 1678 1679 #ifndef S_ISLNK 1680 # ifdef _S_ISLNK 1681 # define S_ISLNK(m) _S_ISLNK(m) 1682 # elif defined(_S_IFLNK) 1683 # define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK) 1684 # elif defined(S_IFLNK) 1685 # define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK) 1686 # else 1687 # define S_ISLNK(m) (0) 1688 # endif 1689 #endif 1690 1691 #ifndef S_ISSOCK 1692 # ifdef _S_ISSOCK 1693 # define S_ISSOCK(m) _S_ISSOCK(m) 1694 # elif defined(_S_IFSOCK) 1695 # define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK) 1696 # elif defined(S_IFSOCK) 1697 # define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK) 1698 # else 1699 # define S_ISSOCK(m) (0) 1700 # endif 1701 #endif 1702 1703 #ifndef S_IRUSR 1704 # ifdef S_IREAD 1705 # define S_IRUSR S_IREAD 1706 # define S_IWUSR S_IWRITE 1707 # define S_IXUSR S_IEXEC 1708 # else 1709 # define S_IRUSR 0400 1710 # define S_IWUSR 0200 1711 # define S_IXUSR 0100 1712 # endif 1713 #endif 1714 1715 #ifndef S_IRGRP 1716 # ifdef S_IRUSR 1717 # define S_IRGRP (S_IRUSR>>3) 1718 # define S_IWGRP (S_IWUSR>>3) 1719 # define S_IXGRP (S_IXUSR>>3) 1720 # else 1721 # define S_IRGRP 0040 1722 # define S_IWGRP 0020 1723 # define S_IXGRP 0010 1724 # endif 1725 #endif 1726 1727 #ifndef S_IROTH 1728 # ifdef S_IRUSR 1729 # define S_IROTH (S_IRUSR>>6) 1730 # define S_IWOTH (S_IWUSR>>6) 1731 # define S_IXOTH (S_IXUSR>>6) 1732 # else 1733 # define S_IROTH 0040 1734 # define S_IWOTH 0020 1735 # define S_IXOTH 0010 1736 # endif 1737 #endif 1738 1739 #ifndef S_ISUID 1740 # define S_ISUID 04000 1741 #endif 1742 1743 #ifndef S_ISGID 1744 # define S_ISGID 02000 1745 #endif 1746 1747 #ifndef S_IRWXU 1748 # define S_IRWXU (S_IRUSR|S_IWUSR|S_IXUSR) 1749 #endif 1750 1751 #ifndef S_IRWXG 1752 # define S_IRWXG (S_IRGRP|S_IWGRP|S_IXGRP) 1753 #endif 1754 1755 #ifndef S_IRWXO 1756 # define S_IRWXO (S_IROTH|S_IWOTH|S_IXOTH) 1757 #endif 1758 1759 /* Haiku R1 seems to define S_IREAD and S_IWRITE in <posix/fcntl.h> 1760 * which would get included through <sys/file.h >, but that is 3000 1761 * lines in the future. --jhi */ 1762 1763 #if !defined(S_IREAD) && !defined(__HAIKU__) 1764 # define S_IREAD S_IRUSR 1765 #endif 1766 1767 #if !defined(S_IWRITE) && !defined(__HAIKU__) 1768 # define S_IWRITE S_IWUSR 1769 #endif 1770 1771 #ifndef S_IEXEC 1772 # define S_IEXEC S_IXUSR 1773 #endif 1774 1775 #if defined(cray) || defined(gould) || defined(i860) || defined(pyr) 1776 # define SLOPPYDIVIDE 1777 #endif 1778 1779 #ifdef UV 1780 #undef UV 1781 #endif 1782 1783 /* This used to be conditionally defined based on whether we had a sprintf() 1784 * that correctly returns the string length (as required by C89), but we no 1785 * longer need that. XS modules can (and do) use this name, so it must remain 1786 * a part of the API that's visible to modules. 1787 1788 =head1 Miscellaneous Functions 1789 1790 =for apidoc ATmD|int|my_sprintf|NN char *buffer|NN const char *pat|... 1791 1792 Do NOT use this due to the possibility of overflowing C<buffer>. Instead use 1793 my_snprintf() 1794 1795 =cut 1796 */ 1797 #define my_sprintf sprintf 1798 1799 /* 1800 * If we have v?snprintf() and the C99 variadic macros, we can just 1801 * use just the v?snprintf(). It is nice to try to trap the buffer 1802 * overflow, however, so if we are DEBUGGING, and we cannot use the 1803 * gcc statement expressions, then use the function wrappers which try 1804 * to trap the overflow. If we can use the gcc statement expressions, 1805 * we can try that even with the version that uses the C99 variadic 1806 * macros. 1807 */ 1808 1809 /* Note that we do not check against snprintf()/vsnprintf() returning 1810 * negative values because that is non-standard behaviour and we use 1811 * snprintf/vsnprintf only iff HAS_VSNPRINTF has been defined, and 1812 * that should be true only if the snprintf()/vsnprintf() are true 1813 * to the standard. */ 1814 1815 #define PERL_SNPRINTF_CHECK(len, max, api) STMT_START { if ((max) > 0 && (Size_t)len > (max)) Perl_croak_nocontext("panic: %s buffer overflow", STRINGIFY(api)); } STMT_END 1816 1817 #ifdef USE_QUADMATH 1818 # define my_snprintf Perl_my_snprintf 1819 # define PERL_MY_SNPRINTF_GUARDED 1820 #elif defined(HAS_SNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1821 # ifdef PERL_USE_GCC_BRACE_GROUPS 1822 # define my_snprintf(buffer, max, ...) ({ int len = snprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, snprintf); len; }) 1823 # define PERL_MY_SNPRINTF_GUARDED 1824 # else 1825 # define my_snprintf(buffer, max, ...) snprintf(buffer, max, __VA_ARGS__) 1826 # endif 1827 #else 1828 # define my_snprintf Perl_my_snprintf 1829 # define PERL_MY_SNPRINTF_GUARDED 1830 #endif 1831 1832 /* There is no quadmath_vsnprintf, and therefore my_vsnprintf() 1833 * dies if called under USE_QUADMATH. */ 1834 #if defined(HAS_VSNPRINTF) && defined(HAS_C99_VARIADIC_MACROS) && !(defined(DEBUGGING) && !defined(PERL_USE_GCC_BRACE_GROUPS)) && !defined(PERL_GCC_PEDANTIC) 1835 # ifdef PERL_USE_GCC_BRACE_GROUPS 1836 # define my_vsnprintf(buffer, max, ...) ({ int len = vsnprintf(buffer, max, __VA_ARGS__); PERL_SNPRINTF_CHECK(len, max, vsnprintf); len; }) 1837 # define PERL_MY_VSNPRINTF_GUARDED 1838 # else 1839 # define my_vsnprintf(buffer, max, ...) vsnprintf(buffer, max, __VA_ARGS__) 1840 # endif 1841 #else 1842 # define my_vsnprintf Perl_my_vsnprintf 1843 # define PERL_MY_VSNPRINTF_GUARDED 1844 #endif 1845 1846 /* You will definitely need to use the PERL_MY_SNPRINTF_POST_GUARD() 1847 * or PERL_MY_VSNPRINTF_POST_GUARD() if you otherwise decide to ignore 1848 * the result of my_snprintf() or my_vsnprintf(). (No, you should not 1849 * completely ignore it: otherwise you cannot know whether your output 1850 * was too long.) 1851 * 1852 * int len = my_sprintf(buf, max, ...); 1853 * PERL_MY_SNPRINTF_POST_GUARD(len, max); 1854 * 1855 * The trick is that in certain platforms [a] the my_sprintf() already 1856 * contains the sanity check, while in certain platforms [b] it needs 1857 * to be done as a separate step. The POST_GUARD is that step-- in [a] 1858 * platforms the POST_GUARD actually does nothing since the check has 1859 * already been done. Watch out for the max being the same in both calls. 1860 * 1861 * If you actually use the snprintf/vsnprintf return value already, 1862 * you assumedly are checking its validity somehow. But you can 1863 * insert the POST_GUARD() also in that case. */ 1864 1865 #ifndef PERL_MY_SNPRINTF_GUARDED 1866 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, snprintf) 1867 #else 1868 # define PERL_MY_SNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1869 #endif 1870 1871 #ifndef PERL_MY_VSNPRINTF_GUARDED 1872 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_SNPRINTF_CHECK(len, max, vsnprintf) 1873 #else 1874 # define PERL_MY_VSNPRINTF_POST_GUARD(len, max) PERL_UNUSED_VAR(len) 1875 #endif 1876 1877 #ifdef HAS_STRLCAT 1878 # define my_strlcat strlcat 1879 #endif 1880 1881 #if defined(PERL_CORE) || defined(PERL_EXT) 1882 # ifdef HAS_MEMRCHR 1883 # define my_memrchr memrchr 1884 # else 1885 # define my_memrchr S_my_memrchr 1886 # endif 1887 #endif 1888 1889 #ifdef HAS_STRLCPY 1890 # define my_strlcpy strlcpy 1891 #endif 1892 1893 #ifdef HAS_STRNLEN 1894 # define my_strnlen strnlen 1895 #endif 1896 1897 /* 1898 The IV type is supposed to be long enough to hold any integral 1899 value or a pointer. 1900 --Andy Dougherty August 1996 1901 */ 1902 1903 typedef IVTYPE IV; 1904 typedef UVTYPE UV; 1905 1906 #if defined(USE_64_BIT_INT) && defined(HAS_QUAD) 1907 # if QUADKIND == QUAD_IS_INT64_T && defined(INT64_MAX) 1908 # define IV_MAX ((IV)INT64_MAX) 1909 # define IV_MIN ((IV)INT64_MIN) 1910 # define UV_MAX ((UV)UINT64_MAX) 1911 # ifndef UINT64_MIN 1912 # define UINT64_MIN 0 1913 # endif 1914 # define UV_MIN ((UV)UINT64_MIN) 1915 # else 1916 # define IV_MAX PERL_QUAD_MAX 1917 # define IV_MIN PERL_QUAD_MIN 1918 # define UV_MAX PERL_UQUAD_MAX 1919 # define UV_MIN PERL_UQUAD_MIN 1920 # endif 1921 # define IV_IS_QUAD 1922 # define UV_IS_QUAD 1923 #else 1924 # if defined(INT32_MAX) && IVSIZE == 4 1925 # define IV_MAX ((IV)INT32_MAX) 1926 # define IV_MIN ((IV)INT32_MIN) 1927 # ifndef UINT32_MAX_BROKEN /* e.g. HP-UX with gcc messes this up */ 1928 # define UV_MAX ((UV)UINT32_MAX) 1929 # else 1930 # define UV_MAX ((UV)4294967295U) 1931 # endif 1932 # ifndef UINT32_MIN 1933 # define UINT32_MIN 0 1934 # endif 1935 # define UV_MIN ((UV)UINT32_MIN) 1936 # else 1937 # define IV_MAX PERL_LONG_MAX 1938 # define IV_MIN PERL_LONG_MIN 1939 # define UV_MAX PERL_ULONG_MAX 1940 # define UV_MIN PERL_ULONG_MIN 1941 # endif 1942 # if IVSIZE == 8 1943 # define IV_IS_QUAD 1944 # define UV_IS_QUAD 1945 # ifndef HAS_QUAD 1946 # define HAS_QUAD 1947 # endif 1948 # else 1949 # undef IV_IS_QUAD 1950 # undef UV_IS_QUAD 1951 #if !defined(PERL_CORE) 1952 /* We think that removing this decade-old undef this will cause too much 1953 breakage on CPAN for too little gain. (See RT #119753) 1954 However, we do need HAS_QUAD in the core for use by the drand48 code. */ 1955 # undef HAS_QUAD 1956 #endif 1957 # endif 1958 #endif 1959 1960 #define Size_t_MAX (~(Size_t)0) 1961 #define SSize_t_MAX (SSize_t)(~(Size_t)0 >> 1) 1962 1963 #define IV_DIG (BIT_DIGITS(IVSIZE * 8)) 1964 #define UV_DIG (BIT_DIGITS(UVSIZE * 8)) 1965 1966 #ifndef NO_PERL_PRESERVE_IVUV 1967 #define PERL_PRESERVE_IVUV /* We like our integers to stay integers. */ 1968 #endif 1969 1970 /* 1971 * The macros INT2PTR and NUM2PTR are (despite their names) 1972 * bi-directional: they will convert int/float to or from pointers. 1973 * However the conversion to int/float are named explicitly: 1974 * PTR2IV, PTR2UV, PTR2NV. 1975 * 1976 * For int conversions we do not need two casts if pointers are 1977 * the same size as IV and UV. Otherwise we need an explicit 1978 * cast (PTRV) to avoid compiler warnings. 1979 */ 1980 #if (IVSIZE == PTRSIZE) && (UVSIZE == PTRSIZE) 1981 # define PTRV UV 1982 # define INT2PTR(any,d) (any)(d) 1983 #elif PTRSIZE == LONGSIZE 1984 # define PTRV unsigned long 1985 # define PTR2ul(p) (unsigned long)(p) 1986 #else 1987 # define PTRV unsigned 1988 #endif 1989 1990 #ifndef INT2PTR 1991 # define INT2PTR(any,d) (any)(PTRV)(d) 1992 #endif 1993 1994 #ifndef PTR2ul 1995 # define PTR2ul(p) INT2PTR(unsigned long,p) 1996 #endif 1997 1998 #define NUM2PTR(any,d) (any)(PTRV)(d) 1999 #define PTR2IV(p) INT2PTR(IV,p) 2000 #define PTR2UV(p) INT2PTR(UV,p) 2001 #define PTR2NV(p) NUM2PTR(NV,p) 2002 #define PTR2nat(p) (PTRV)(p) /* pointer to integer of PTRSIZE */ 2003 2004 /* According to strict ANSI C89 one cannot freely cast between 2005 * data pointers and function (code) pointers. There are at least 2006 * two ways around this. One (used below) is to do two casts, 2007 * first the other pointer to an (unsigned) integer, and then 2008 * the integer to the other pointer. The other way would be 2009 * to use unions to "overlay" the pointers. For an example of 2010 * the latter technique, see union dirpu in struct xpvio in sv.h. 2011 * The only feasible use is probably temporarily storing 2012 * function pointers in a data pointer (such as a void pointer). */ 2013 2014 #define DPTR2FPTR(t,p) ((t)PTR2nat(p)) /* data pointer to function pointer */ 2015 #define FPTR2DPTR(t,p) ((t)PTR2nat(p)) /* function pointer to data pointer */ 2016 2017 #ifdef USE_LONG_DOUBLE 2018 # if LONG_DOUBLESIZE == DOUBLESIZE 2019 # define LONG_DOUBLE_EQUALS_DOUBLE 2020 # undef USE_LONG_DOUBLE /* Ouch! */ 2021 # endif 2022 #endif 2023 2024 /* The following is all to get LDBL_DIG, in order to pick a nice 2025 default value for printing floating point numbers in Gconvert. 2026 (see config.h) 2027 */ 2028 #ifndef HAS_LDBL_DIG 2029 # if LONG_DOUBLESIZE == 10 2030 # define LDBL_DIG 18 /* assume IEEE */ 2031 # elif LONG_DOUBLESIZE == 12 2032 # define LDBL_DIG 18 /* gcc? */ 2033 # elif LONG_DOUBLESIZE == 16 2034 # define LDBL_DIG 33 /* assume IEEE */ 2035 # elif LONG_DOUBLESIZE == DOUBLESIZE 2036 # define LDBL_DIG DBL_DIG /* bummer */ 2037 # endif 2038 #endif 2039 2040 typedef NVTYPE NV; 2041 2042 #ifdef I_IEEEFP 2043 # include <ieeefp.h> 2044 #endif 2045 2046 #if defined(__DECC) && defined(__osf__) 2047 /* Also Tru64 cc has broken NaN comparisons. */ 2048 # define NAN_COMPARE_BROKEN 2049 #endif 2050 #if defined(__sgi) 2051 # define NAN_COMPARE_BROKEN 2052 #endif 2053 2054 #ifdef USE_LONG_DOUBLE 2055 # ifdef I_SUNMATH 2056 # include <sunmath.h> 2057 # endif 2058 # if defined(LDBL_DIG) 2059 # define NV_DIG LDBL_DIG 2060 # ifdef LDBL_MANT_DIG 2061 # define NV_MANT_DIG LDBL_MANT_DIG 2062 # endif 2063 # ifdef LDBL_MIN 2064 # define NV_MIN LDBL_MIN 2065 # endif 2066 # ifdef LDBL_MAX 2067 # define NV_MAX LDBL_MAX 2068 # endif 2069 # ifdef LDBL_MIN_EXP 2070 # define NV_MIN_EXP LDBL_MIN_EXP 2071 # endif 2072 # ifdef LDBL_MAX_EXP 2073 # define NV_MAX_EXP LDBL_MAX_EXP 2074 # endif 2075 # ifdef LDBL_MIN_10_EXP 2076 # define NV_MIN_10_EXP LDBL_MIN_10_EXP 2077 # endif 2078 # ifdef LDBL_MAX_10_EXP 2079 # define NV_MAX_10_EXP LDBL_MAX_10_EXP 2080 # endif 2081 # ifdef LDBL_EPSILON 2082 # define NV_EPSILON LDBL_EPSILON 2083 # endif 2084 # ifdef LDBL_MAX 2085 # define NV_MAX LDBL_MAX 2086 /* Having LDBL_MAX doesn't necessarily mean that we have LDBL_MIN... -Allen */ 2087 # elif defined(HUGE_VALL) 2088 # define NV_MAX HUGE_VALL 2089 # endif 2090 # endif 2091 # if defined(HAS_SQRTL) 2092 # define Perl_acos acosl 2093 # define Perl_asin asinl 2094 # define Perl_atan atanl 2095 # define Perl_atan2 atan2l 2096 # define Perl_ceil ceill 2097 # define Perl_cos cosl 2098 # define Perl_cosh coshl 2099 # define Perl_exp expl 2100 /* no Perl_fabs, but there's PERL_ABS */ 2101 # define Perl_floor floorl 2102 # define Perl_fmod fmodl 2103 # define Perl_log logl 2104 # define Perl_log10 log10l 2105 # define Perl_pow powl 2106 # define Perl_sin sinl 2107 # define Perl_sinh sinhl 2108 # define Perl_sqrt sqrtl 2109 # define Perl_tan tanl 2110 # define Perl_tanh tanhl 2111 # endif 2112 /* e.g. libsunmath doesn't have modfl and frexpl as of mid-March 2000 */ 2113 # ifndef Perl_modf 2114 # ifdef HAS_MODFL 2115 # define Perl_modf(x,y) modfl(x,y) 2116 /* eg glibc 2.2 series seems to provide modfl on ppc and arm, but has no 2117 prototype in <math.h> */ 2118 # ifndef HAS_MODFL_PROTO 2119 EXTERN_C long double modfl(long double, long double *); 2120 # endif 2121 # elif (defined(HAS_TRUNCL) || defined(HAS_AINTL)) && defined(HAS_COPYSIGNL) 2122 extern long double Perl_my_modfl(long double x, long double *ip); 2123 # define Perl_modf(x,y) Perl_my_modfl(x,y) 2124 # endif 2125 # endif 2126 # ifndef Perl_frexp 2127 # ifdef HAS_FREXPL 2128 # define Perl_frexp(x,y) frexpl(x,y) 2129 # elif defined(HAS_ILOGBL) && defined(HAS_SCALBNL) 2130 extern long double Perl_my_frexpl(long double x, int *e); 2131 # define Perl_frexp(x,y) Perl_my_frexpl(x,y) 2132 # endif 2133 # endif 2134 # ifndef Perl_ldexp 2135 # ifdef HAS_LDEXPL 2136 # define Perl_ldexp(x, y) ldexpl(x,y) 2137 # elif defined(HAS_SCALBNL) && FLT_RADIX == 2 2138 # define Perl_ldexp(x,y) scalbnl(x,y) 2139 # endif 2140 # endif 2141 # ifndef Perl_isnan 2142 # if defined(HAS_ISNANL) && !(defined(isnan) && defined(HAS_C99)) 2143 # define Perl_isnan(x) isnanl(x) 2144 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 2145 # define Perl_isnan(x) isnan(x) 2146 # endif 2147 # endif 2148 # ifndef Perl_isinf 2149 # if defined(HAS_ISINFL) && !(defined(isinf) && defined(HAS_C99)) 2150 # define Perl_isinf(x) isinfl(x) 2151 # elif defined(__sgi) && defined(__c99) /* XXX Configure test needed */ 2152 # define Perl_isinf(x) isinf(x) 2153 # elif defined(LDBL_MAX) && !defined(NAN_COMPARE_BROKEN) 2154 # define Perl_isinf(x) ((x) > LDBL_MAX || (x) < -LDBL_MAX) 2155 # endif 2156 # endif 2157 # ifndef Perl_isfinite 2158 # define Perl_isfinite(x) Perl_isfinitel(x) 2159 # endif 2160 #elif defined(USE_QUADMATH) && defined(I_QUADMATH) 2161 # include <quadmath.h> 2162 # define NV_DIG FLT128_DIG 2163 # define NV_MANT_DIG FLT128_MANT_DIG 2164 # define NV_MIN FLT128_MIN 2165 # define NV_MAX FLT128_MAX 2166 # define NV_MIN_EXP FLT128_MIN_EXP 2167 # define NV_MAX_EXP FLT128_MAX_EXP 2168 # define NV_EPSILON FLT128_EPSILON 2169 # define NV_MIN_10_EXP FLT128_MIN_10_EXP 2170 # define NV_MAX_10_EXP FLT128_MAX_10_EXP 2171 # define Perl_acos acosq 2172 # define Perl_asin asinq 2173 # define Perl_atan atanq 2174 # define Perl_atan2 atan2q 2175 # define Perl_ceil ceilq 2176 # define Perl_cos cosq 2177 # define Perl_cosh coshq 2178 # define Perl_exp expq 2179 /* no Perl_fabs, but there's PERL_ABS */ 2180 # define Perl_floor floorq 2181 # define Perl_fmod fmodq 2182 # define Perl_log logq 2183 # define Perl_log10 log10q 2184 # define Perl_signbit signbitq 2185 # define Perl_pow powq 2186 # define Perl_sin sinq 2187 # define Perl_sinh sinhq 2188 # define Perl_sqrt sqrtq 2189 # define Perl_tan tanq 2190 # define Perl_tanh tanhq 2191 # define Perl_modf(x,y) modfq(x,y) 2192 # define Perl_frexp(x,y) frexpq(x,y) 2193 # define Perl_ldexp(x, y) ldexpq(x,y) 2194 # define Perl_isinf(x) isinfq(x) 2195 # define Perl_isnan(x) isnanq(x) 2196 # define Perl_isfinite(x) !(isnanq(x) || isinfq(x)) 2197 # define Perl_fp_class(x) ((x) == 0.0Q ? 0 : isinfq(x) ? 3 : isnanq(x) ? 4 : PERL_ABS(x) < FLT128_MIN ? 2 : 1) 2198 # define Perl_fp_class_inf(x) (Perl_fp_class(x) == 3) 2199 # define Perl_fp_class_nan(x) (Perl_fp_class(x) == 4) 2200 # define Perl_fp_class_norm(x) (Perl_fp_class(x) == 1) 2201 # define Perl_fp_class_denorm(x) (Perl_fp_class(x) == 2) 2202 # define Perl_fp_class_zero(x) (Perl_fp_class(x) == 0) 2203 #else 2204 # define NV_DIG DBL_DIG 2205 # define NV_MANT_DIG DBL_MANT_DIG 2206 # define NV_MIN DBL_MIN 2207 # define NV_MAX DBL_MAX 2208 # define NV_MIN_EXP DBL_MIN_EXP 2209 # define NV_MAX_EXP DBL_MAX_EXP 2210 # define NV_MIN_10_EXP DBL_MIN_10_EXP 2211 # define NV_MAX_10_EXP DBL_MAX_10_EXP 2212 # define NV_EPSILON DBL_EPSILON 2213 # define NV_MAX DBL_MAX 2214 # define NV_MIN DBL_MIN 2215 2216 /* These math interfaces are C89. */ 2217 # define Perl_acos acos 2218 # define Perl_asin asin 2219 # define Perl_atan atan 2220 # define Perl_atan2 atan2 2221 # define Perl_ceil ceil 2222 # define Perl_cos cos 2223 # define Perl_cosh cosh 2224 # define Perl_exp exp 2225 /* no Perl_fabs, but there's PERL_ABS */ 2226 # define Perl_floor floor 2227 # define Perl_fmod fmod 2228 # define Perl_log log 2229 # define Perl_log10 log10 2230 # define Perl_pow pow 2231 # define Perl_sin sin 2232 # define Perl_sinh sinh 2233 # define Perl_sqrt sqrt 2234 # define Perl_tan tan 2235 # define Perl_tanh tanh 2236 2237 # define Perl_modf(x,y) modf(x,y) 2238 # define Perl_frexp(x,y) frexp(x,y) 2239 # define Perl_ldexp(x,y) ldexp(x,y) 2240 2241 # ifndef Perl_isnan 2242 # ifdef HAS_ISNAN 2243 # define Perl_isnan(x) isnan(x) 2244 # endif 2245 # endif 2246 # ifndef Perl_isinf 2247 # if defined(HAS_ISINF) 2248 # define Perl_isinf(x) isinf(x) 2249 # elif defined(DBL_MAX) && !defined(NAN_COMPARE_BROKEN) 2250 # define Perl_isinf(x) ((x) > DBL_MAX || (x) < -DBL_MAX) 2251 # endif 2252 # endif 2253 # ifndef Perl_isfinite 2254 # ifdef HAS_ISFINITE 2255 # define Perl_isfinite(x) isfinite(x) 2256 # elif defined(HAS_FINITE) 2257 # define Perl_isfinite(x) finite(x) 2258 # endif 2259 # endif 2260 #endif 2261 2262 /* fpclassify(): C99. It is supposed to be a macro that switches on 2263 * the sizeof() of its argument, so there's no need for e.g. fpclassifyl().*/ 2264 #if !defined(Perl_fp_class) && defined(HAS_FPCLASSIFY) 2265 # include <math.h> 2266 # if defined(FP_INFINITE) && defined(FP_NAN) 2267 # define Perl_fp_class(x) fpclassify(x) 2268 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2269 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2270 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2271 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2272 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2273 # elif defined(FP_PLUS_INF) && defined(FP_QNAN) 2274 /* Some versions of HP-UX (10.20) have (only) fpclassify() but which is 2275 * actually not the C99 fpclassify, with its own set of return defines. */ 2276 # define Perl_fp_class(x) fpclassify(x) 2277 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2278 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2279 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2280 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2281 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2282 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2283 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2284 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2285 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2286 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2287 # else 2288 # undef Perl_fp_class /* Unknown set of defines */ 2289 # endif 2290 #endif 2291 2292 /* fp_classify(): Legacy: VMS, maybe Unicos? The values, however, 2293 * are identical to the C99 fpclassify(). */ 2294 #if !defined(Perl_fp_class) && defined(HAS_FP_CLASSIFY) 2295 # include <math.h> 2296 # ifdef __VMS 2297 /* FP_INFINITE and others are here rather than in math.h as C99 stipulates */ 2298 # include <fp.h> 2299 /* oh, and the isnormal macro has a typo in it! */ 2300 # undef isnormal 2301 # define isnormal(x) Perl_fp_class_norm(x) 2302 # endif 2303 # if defined(FP_INFINITE) && defined(FP_NAN) 2304 # define Perl_fp_class(x) fp_classify(x) 2305 # define Perl_fp_class_inf(x) (Perl_fp_class(x)==FP_INFINITE) 2306 # define Perl_fp_class_nan(x) (Perl_fp_class(x)==FP_NAN) 2307 # define Perl_fp_class_norm(x) (Perl_fp_class(x)==FP_NORMAL) 2308 # define Perl_fp_class_denorm(x) (Perl_fp_class(x)==FP_SUBNORMAL) 2309 # define Perl_fp_class_zero(x) (Perl_fp_class(x)==FP_ZERO) 2310 # else 2311 # undef Perl_fp_class /* Unknown set of defines */ 2312 # endif 2313 #endif 2314 2315 /* Feel free to check with me for the SGI manpages, SGI testing, 2316 * etcetera, if you want to try getting this to work with IRIX. 2317 * 2318 * - Allen <allens@cpan.org> */ 2319 2320 /* fpclass(): SysV, at least Solaris and some versions of IRIX. */ 2321 #if !defined(Perl_fp_class) && (defined(HAS_FPCLASS)||defined(HAS_FPCLASSL)) 2322 /* Solaris and IRIX have fpclass/fpclassl, but they are using 2323 * an enum typedef, not cpp symbols, and Configure doesn't detect that. 2324 * Define some symbols also as cpp symbols so we can detect them. */ 2325 # if defined(__sun) || defined(__sgi) /* XXX Configure test instead */ 2326 # define FP_PINF FP_PINF 2327 # define FP_QNAN FP_QNAN 2328 # endif 2329 # include <math.h> 2330 # ifdef I_IEEFP 2331 # include <ieeefp.h> 2332 # endif 2333 # ifdef I_FP 2334 # include <fp.h> 2335 # endif 2336 # if defined(USE_LONG_DOUBLE) && defined(HAS_FPCLASSL) 2337 # define Perl_fp_class(x) fpclassl(x) 2338 # else 2339 # define Perl_fp_class(x) fpclass(x) 2340 # endif 2341 # if defined(FP_CLASS_PINF) && defined(FP_CLASS_SNAN) 2342 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_CLASS_SNAN) 2343 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_CLASS_QNAN) 2344 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_CLASS_NINF) 2345 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_CLASS_PINF) 2346 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_CLASS_NNORM) 2347 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_CLASS_PNORM) 2348 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_CLASS_NDENORM) 2349 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_CLASS_PDENORM) 2350 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_CLASS_NZERO) 2351 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_CLASS_PZERO) 2352 # elif defined(FP_PINF) && defined(FP_QNAN) 2353 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2354 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2355 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NINF) 2356 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PINF) 2357 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NNORM) 2358 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PNORM) 2359 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NDENORM) 2360 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PDENORM) 2361 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NZERO) 2362 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PZERO) 2363 # else 2364 # undef Perl_fp_class /* Unknown set of defines */ 2365 # endif 2366 #endif 2367 2368 /* fp_class(): Legacy: at least Tru64, some versions of IRIX. */ 2369 #if !defined(Perl_fp_class) && (defined(HAS_FP_CLASS)||defined(HAS_FP_CLASSL)) 2370 # include <math.h> 2371 # if !defined(FP_SNAN) && defined(I_FP_CLASS) 2372 # include <fp_class.h> 2373 # endif 2374 # if defined(FP_POS_INF) && defined(FP_QNAN) 2375 # ifdef __sgi /* XXX Configure test instead */ 2376 # ifdef USE_LONG_DOUBLE 2377 # define Perl_fp_class(x) fp_class_l(x) 2378 # else 2379 # define Perl_fp_class(x) fp_class_d(x) 2380 # endif 2381 # else 2382 # if defined(USE_LONG_DOUBLE) && defined(HAS_FP_CLASSL) 2383 # define Perl_fp_class(x) fp_classl(x) 2384 # else 2385 # define Perl_fp_class(x) fp_class(x) 2386 # endif 2387 # endif 2388 # if defined(FP_POS_INF) && defined(FP_QNAN) 2389 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_SNAN) 2390 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_QNAN) 2391 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_NEG_INF) 2392 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_POS_INF) 2393 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_NEG_NORM) 2394 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_POS_NORM) 2395 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_NEG_DENORM) 2396 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_POS_DENORM) 2397 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_NEG_ZERO) 2398 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_POS_ZERO) 2399 # else 2400 # undef Perl_fp_class /* Unknown set of defines */ 2401 # endif 2402 # endif 2403 #endif 2404 2405 /* class(), _class(): Legacy: AIX. */ 2406 #if !defined(Perl_fp_class) && defined(HAS_CLASS) 2407 # include <math.h> 2408 # if defined(FP_PLUS_NORM) && defined(FP_PLUS_INF) 2409 # ifndef _cplusplus 2410 # define Perl_fp_class(x) class(x) 2411 # else 2412 # define Perl_fp_class(x) _class(x) 2413 # endif 2414 # if defined(FP_PLUS_INF) && defined(FP_NANQ) 2415 # define Perl_fp_class_snan(x) (Perl_fp_class(x)==FP_NANS) 2416 # define Perl_fp_class_qnan(x) (Perl_fp_class(x)==FP_NANQ) 2417 # define Perl_fp_class_ninf(x) (Perl_fp_class(x)==FP_MINUS_INF) 2418 # define Perl_fp_class_pinf(x) (Perl_fp_class(x)==FP_PLUS_INF) 2419 # define Perl_fp_class_nnorm(x) (Perl_fp_class(x)==FP_MINUS_NORM) 2420 # define Perl_fp_class_pnorm(x) (Perl_fp_class(x)==FP_PLUS_NORM) 2421 # define Perl_fp_class_ndenorm(x) (Perl_fp_class(x)==FP_MINUS_DENORM) 2422 # define Perl_fp_class_pdenorm(x) (Perl_fp_class(x)==FP_PLUS_DENORM) 2423 # define Perl_fp_class_nzero(x) (Perl_fp_class(x)==FP_MINUS_ZERO) 2424 # define Perl_fp_class_pzero(x) (Perl_fp_class(x)==FP_PLUS_ZERO) 2425 # else 2426 # undef Perl_fp_class /* Unknown set of defines */ 2427 # endif 2428 # endif 2429 #endif 2430 2431 /* Win32: _fpclass(), _isnan(), _finite(). */ 2432 #ifdef _MSC_VER 2433 # ifndef Perl_isnan 2434 # define Perl_isnan(x) _isnan(x) 2435 # endif 2436 # ifndef Perl_isfinite 2437 # define Perl_isfinite(x) _finite(x) 2438 # endif 2439 # ifndef Perl_fp_class_snan 2440 /* No simple way to #define Perl_fp_class because _fpclass() 2441 * returns a set of bits. */ 2442 # define Perl_fp_class_snan(x) (_fpclass(x) & _FPCLASS_SNAN) 2443 # define Perl_fp_class_qnan(x) (_fpclass(x) & _FPCLASS_QNAN) 2444 # define Perl_fp_class_nan(x) (_fpclass(x) & (_FPCLASS_SNAN|_FPCLASS_QNAN)) 2445 # define Perl_fp_class_ninf(x) (_fpclass(x) & _FPCLASS_NINF)) 2446 # define Perl_fp_class_pinf(x) (_fpclass(x) & _FPCLASS_PINF)) 2447 # define Perl_fp_class_inf(x) (_fpclass(x) & (_FPCLASS_NINF|_FPCLASS_PINF)) 2448 # define Perl_fp_class_nnorm(x) (_fpclass(x) & _FPCLASS_NN) 2449 # define Perl_fp_class_pnorm(x) (_fpclass(x) & _FPCLASS_PN) 2450 # define Perl_fp_class_norm(x) (_fpclass(x) & (_FPCLASS_NN|_FPCLASS_PN)) 2451 # define Perl_fp_class_ndenorm(x) (_fpclass(x) & _FPCLASS_ND) 2452 # define Perl_fp_class_pdenorm(x) (_fpclass(x) & _FPCLASS_PD) 2453 # define Perl_fp_class_denorm(x) (_fpclass(x) & (_FPCLASS_ND|_FPCLASS_PD)) 2454 # define Perl_fp_class_nzero(x) (_fpclass(x) & _FPCLASS_NZ) 2455 # define Perl_fp_class_pzero(x) (_fpclass(x) & _FPCLASS_PZ) 2456 # define Perl_fp_class_zero(x) (_fpclass(x) & (_FPCLASS_NZ|_FPCLASS_PZ)) 2457 # endif 2458 #endif 2459 2460 #if !defined(Perl_fp_class_inf) && \ 2461 defined(Perl_fp_class_pinf) && defined(Perl_fp_class_ninf) 2462 # define Perl_fp_class_inf(x) \ 2463 (Perl_fp_class_pinf(x) || Perl_fp_class_ninf(x)) 2464 #endif 2465 2466 #if !defined(Perl_fp_class_nan) && \ 2467 defined(Perl_fp_class_snan) && defined(Perl_fp_class_qnan) 2468 # define Perl_fp_class_nan(x) \ 2469 (Perl_fp_class_snan(x) || Perl_fp_class_qnan(x)) 2470 #endif 2471 2472 #if !defined(Perl_fp_class_zero) && \ 2473 defined(Perl_fp_class_pzero) && defined(Perl_fp_class_nzero) 2474 # define Perl_fp_class_zero(x) \ 2475 (Perl_fp_class_pzero(x) || Perl_fp_class_nzero(x)) 2476 #endif 2477 2478 #if !defined(Perl_fp_class_norm) && \ 2479 defined(Perl_fp_class_pnorm) && defined(Perl_fp_class_nnorm) 2480 # define Perl_fp_class_norm(x) \ 2481 (Perl_fp_class_pnorm(x) || Perl_fp_class_nnorm(x)) 2482 #endif 2483 2484 #if !defined(Perl_fp_class_denorm) && \ 2485 defined(Perl_fp_class_pdenorm) && defined(Perl_fp_class_ndenorm) 2486 # define Perl_fp_class_denorm(x) \ 2487 (Perl_fp_class_pdenorm(x) || Perl_fp_class_ndenorm(x)) 2488 #endif 2489 2490 #ifndef Perl_isnan 2491 # ifdef Perl_fp_class_nan 2492 # define Perl_isnan(x) Perl_fp_class_nan(x) 2493 # elif defined(HAS_UNORDERED) 2494 # define Perl_isnan(x) unordered((x), 0.0) 2495 # else 2496 # define Perl_isnan(x) ((x)!=(x)) 2497 # endif 2498 #endif 2499 2500 #ifndef Perl_isinf 2501 # ifdef Perl_fp_class_inf 2502 # define Perl_isinf(x) Perl_fp_class_inf(x) 2503 # endif 2504 #endif 2505 2506 #ifndef Perl_isfinite 2507 # if defined(HAS_ISFINITE) && !defined(isfinite) 2508 # define Perl_isfinite(x) isfinite((double)(x)) 2509 # elif defined(HAS_FINITE) 2510 # define Perl_isfinite(x) finite((double)(x)) 2511 # elif defined(Perl_fp_class_finite) 2512 # define Perl_isfinite(x) Perl_fp_class_finite(x) 2513 # else 2514 /* For the infinities the multiplication returns nan, 2515 * for the nan the multiplication also returns nan, 2516 * for everything else (that is, finite) zero should be returned. */ 2517 # define Perl_isfinite(x) (((x) * 0) == 0) 2518 # endif 2519 #endif 2520 2521 #ifndef Perl_isinf 2522 # if defined(Perl_isfinite) && defined(Perl_isnan) 2523 # define Perl_isinf(x) !(Perl_isfinite(x)||Perl_isnan(x)) 2524 # endif 2525 #endif 2526 2527 /* We need Perl_isfinitel (ends with ell) (if available) even when 2528 * not USE_LONG_DOUBLE because the printf code (sv_catpvfn_flags) 2529 * needs that. */ 2530 #if defined(HAS_LONG_DOUBLE) && !defined(Perl_isfinitel) 2531 /* If isfinite() is a macro and looks like we have C99, 2532 * we assume it's the type-aware C99 isfinite(). */ 2533 # if defined(HAS_ISFINITE) && defined(isfinite) && defined(HAS_C99) 2534 # define Perl_isfinitel(x) isfinite(x) 2535 # elif defined(HAS_ISFINITEL) 2536 # define Perl_isfinitel(x) isfinitel(x) 2537 # elif defined(HAS_FINITEL) 2538 # define Perl_isfinitel(x) finitel(x) 2539 # elif defined(HAS_INFL) && defined(HAS_NANL) 2540 # define Perl_isfinitel(x) !(isinfl(x)||isnanl(x)) 2541 # else 2542 # define Perl_isfinitel(x) ((x) * 0 == 0) /* See Perl_isfinite. */ 2543 # endif 2544 #endif 2545 2546 /* The default is to use Perl's own atof() implementation (in numeric.c). 2547 * Usually that is the one to use but for some platforms (e.g. UNICOS) 2548 * it is however best to use the native implementation of atof. 2549 * You can experiment with using your native one by -DUSE_PERL_ATOF=0. 2550 * Some good tests to try out with either setting are t/base/num.t, 2551 * t/op/numconvert.t, and t/op/pack.t. Note that if using long doubles 2552 * you may need to be using a different function than atof! */ 2553 2554 #ifndef USE_PERL_ATOF 2555 # ifndef _UNICOS 2556 # define USE_PERL_ATOF 2557 # endif 2558 #else 2559 # if USE_PERL_ATOF == 0 2560 # undef USE_PERL_ATOF 2561 # endif 2562 #endif 2563 2564 #ifdef USE_PERL_ATOF 2565 # define Perl_atof(s) Perl_my_atof(s) 2566 # define Perl_atof2(s, n) Perl_my_atof3(aTHX_ (s), &(n), 0) 2567 #else 2568 # define Perl_atof(s) (NV)atof(s) 2569 # define Perl_atof2(s, n) ((n) = atof(s)) 2570 #endif 2571 #define my_atof2(a,b) my_atof3(a,b,0) 2572 2573 /* 2574 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be 2575 * ambiguous. It may be equivalent to (signed char) or (unsigned char) 2576 * depending on local options. Until Configure detects this (or at least 2577 * detects whether the "signed" keyword is available) the CHAR ranges 2578 * will not be included. UCHAR functions normally. 2579 * - kja 2580 */ 2581 2582 #define PERL_UCHAR_MIN ((unsigned char)0) 2583 #define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX) 2584 2585 #define PERL_USHORT_MIN ((unsigned short)0) 2586 #define PERL_USHORT_MAX ((unsigned short)USHRT_MAX) 2587 2588 #define PERL_SHORT_MAX ((short)SHRT_MAX) 2589 #define PERL_SHORT_MIN ((short)SHRT_MIN) 2590 2591 #define PERL_UINT_MAX ((unsigned int)UINT_MAX) 2592 #define PERL_UINT_MIN ((unsigned int)0) 2593 2594 #define PERL_INT_MAX ((int)INT_MAX) 2595 #define PERL_INT_MIN ((int)INT_MIN) 2596 2597 #define PERL_ULONG_MAX ((unsigned long)ULONG_MAX) 2598 #define PERL_ULONG_MIN ((unsigned long)0L) 2599 2600 #define PERL_LONG_MAX ((long)LONG_MAX) 2601 #define PERL_LONG_MIN ((long)LONG_MIN) 2602 2603 #ifdef UV_IS_QUAD 2604 # define PERL_UQUAD_MAX (~(UV)0) 2605 # define PERL_UQUAD_MIN ((UV)0) 2606 # define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1)) 2607 # define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3)) 2608 #endif 2609 2610 /* 2611 =head1 Numeric functions 2612 2613 =for apidoc AmnUh||PERL_INT_MIN 2614 =for apidoc AmnUh||PERL_LONG_MAX 2615 =for apidoc AmnUh||PERL_LONG_MIN 2616 =for apidoc AmnUh||PERL_QUAD_MAX 2617 =for apidoc AmnUh||PERL_SHORT_MAX 2618 =for apidoc AmnUh||PERL_SHORT_MIN 2619 =for apidoc AmnUh||PERL_UCHAR_MAX 2620 =for apidoc AmnUh||PERL_UCHAR_MIN 2621 =for apidoc AmnUh||PERL_UINT_MAX 2622 =for apidoc AmnUh||PERL_ULONG_MAX 2623 =for apidoc AmnUh||PERL_ULONG_MIN 2624 =for apidoc AmnUh||PERL_UQUAD_MAX 2625 =for apidoc AmnUh||PERL_UQUAD_MIN 2626 =for apidoc AmnUh||PERL_USHORT_MAX 2627 =for apidoc AmnUh||PERL_USHORT_MIN 2628 =for apidoc AmnUh||PERL_QUAD_MIN 2629 =for apidoc AmnU||PERL_INT_MAX 2630 This and 2631 C<PERL_INT_MIN>, 2632 C<PERL_LONG_MAX>, 2633 C<PERL_LONG_MIN>, 2634 C<PERL_QUAD_MAX>, 2635 C<PERL_SHORT_MAX>, 2636 C<PERL_SHORT_MIN>, 2637 C<PERL_UCHAR_MAX>, 2638 C<PERL_UCHAR_MIN>, 2639 C<PERL_UINT_MAX>, 2640 C<PERL_ULONG_MAX>, 2641 C<PERL_ULONG_MIN>, 2642 C<PERL_UQUAD_MAX>, 2643 C<PERL_UQUAD_MIN>, 2644 C<PERL_USHORT_MAX>, 2645 C<PERL_USHORT_MIN>, 2646 C<PERL_QUAD_MIN> 2647 give the largest and smallest number representable in the current 2648 platform in variables of the corresponding types. 2649 2650 For signed types, the smallest representable number is the most negative 2651 number, the one furthest away from zero. 2652 2653 For C99 and later compilers, these correspond to things like C<INT_MAX>, which 2654 are available to the C code. But these constants, furnished by Perl, 2655 allow code compiled on earlier compilers to portably have access to the same 2656 constants. 2657 2658 =cut 2659 2660 */ 2661 2662 typedef MEM_SIZE STRLEN; 2663 2664 typedef struct op OP; 2665 typedef struct cop COP; 2666 typedef struct unop UNOP; 2667 typedef struct unop_aux UNOP_AUX; 2668 typedef struct binop BINOP; 2669 typedef struct listop LISTOP; 2670 typedef struct logop LOGOP; 2671 typedef struct pmop PMOP; 2672 typedef struct svop SVOP; 2673 typedef struct padop PADOP; 2674 typedef struct pvop PVOP; 2675 typedef struct loop LOOP; 2676 typedef struct methop METHOP; 2677 2678 #ifdef PERL_CORE 2679 typedef struct opslab OPSLAB; 2680 typedef struct opslot OPSLOT; 2681 #endif 2682 2683 typedef struct block_hooks BHK; 2684 typedef struct custom_op XOP; 2685 2686 typedef struct interpreter PerlInterpreter; 2687 2688 /* SGI's <sys/sema.h> has struct sv */ 2689 #if defined(__sgi) 2690 # define STRUCT_SV perl_sv 2691 #else 2692 # define STRUCT_SV sv 2693 #endif 2694 typedef struct STRUCT_SV SV; 2695 typedef struct av AV; 2696 typedef struct hv HV; 2697 typedef struct cv CV; 2698 typedef struct p5rx REGEXP; 2699 typedef struct gp GP; 2700 typedef struct gv GV; 2701 typedef struct io IO; 2702 typedef struct context PERL_CONTEXT; 2703 typedef struct block BLOCK; 2704 2705 typedef struct magic MAGIC; 2706 typedef struct xpv XPV; 2707 typedef struct xpviv XPVIV; 2708 typedef struct xpvuv XPVUV; 2709 typedef struct xpvnv XPVNV; 2710 typedef struct xpvmg XPVMG; 2711 typedef struct xpvlv XPVLV; 2712 typedef struct xpvinvlist XINVLIST; 2713 typedef struct xpvav XPVAV; 2714 typedef struct xpvhv XPVHV; 2715 typedef struct xpvgv XPVGV; 2716 typedef struct xpvcv XPVCV; 2717 typedef struct xpvbm XPVBM; 2718 typedef struct xpvfm XPVFM; 2719 typedef struct xpvio XPVIO; 2720 typedef struct mgvtbl MGVTBL; 2721 typedef union any ANY; 2722 typedef struct ptr_tbl_ent PTR_TBL_ENT_t; 2723 typedef struct ptr_tbl PTR_TBL_t; 2724 typedef struct clone_params CLONE_PARAMS; 2725 2726 /* a pad is currently just an AV; but that might change, 2727 * so hide the type. */ 2728 typedef struct padlist PADLIST; 2729 typedef AV PAD; 2730 typedef struct padnamelist PADNAMELIST; 2731 typedef struct padname PADNAME; 2732 2733 /* always enable PERL_OP_PARENT */ 2734 #if !defined(PERL_OP_PARENT) 2735 # define PERL_OP_PARENT 2736 #endif 2737 2738 /* enable PERL_COPY_ON_WRITE by default */ 2739 #if !defined(PERL_COPY_ON_WRITE) && !defined(PERL_NO_COW) 2740 # define PERL_COPY_ON_WRITE 2741 #endif 2742 2743 #ifdef PERL_COPY_ON_WRITE 2744 # define PERL_ANY_COW 2745 #else 2746 # define PERL_SAWAMPERSAND 2747 #endif 2748 2749 #if defined(PERL_DEBUG_READONLY_OPS) && !defined(USE_ITHREADS) 2750 # error PERL_DEBUG_READONLY_OPS only works with ithreads 2751 #endif 2752 2753 #include "handy.h" 2754 #include "charclass_invlists.h" 2755 2756 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_RAWIO) 2757 # if LSEEKSIZE == 8 && !defined(USE_64_BIT_RAWIO) 2758 # define USE_64_BIT_RAWIO /* implicit */ 2759 # endif 2760 #endif 2761 2762 /* Notice the use of HAS_FSEEKO: now we are obligated to always use 2763 * fseeko/ftello if possible. Don't go #defining ftell to ftello yourself, 2764 * however, because operating systems like to do that themself. */ 2765 #ifndef FSEEKSIZE 2766 # ifdef HAS_FSEEKO 2767 # define FSEEKSIZE LSEEKSIZE 2768 # else 2769 # define FSEEKSIZE LONGSIZE 2770 # endif 2771 #endif 2772 2773 #if defined(USE_LARGE_FILES) && !defined(NO_64_BIT_STDIO) 2774 # if FSEEKSIZE == 8 && !defined(USE_64_BIT_STDIO) 2775 # define USE_64_BIT_STDIO /* implicit */ 2776 # endif 2777 #endif 2778 2779 #ifdef USE_64_BIT_RAWIO 2780 # ifdef HAS_OFF64_T 2781 # undef Off_t 2782 # define Off_t off64_t 2783 # undef LSEEKSIZE 2784 # define LSEEKSIZE 8 2785 # endif 2786 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2787 * will trigger defines like the ones below. Some 64-bit environments, 2788 * however, do not. Therefore we have to explicitly mix and match. */ 2789 # if defined(USE_OPEN64) 2790 # define open open64 2791 # endif 2792 # if defined(USE_LSEEK64) 2793 # define lseek lseek64 2794 # else 2795 # if defined(USE_LLSEEK) 2796 # define lseek llseek 2797 # endif 2798 # endif 2799 # if defined(USE_STAT64) 2800 # define stat stat64 2801 # endif 2802 # if defined(USE_FSTAT64) 2803 # define fstat fstat64 2804 # endif 2805 # if defined(USE_LSTAT64) 2806 # define lstat lstat64 2807 # endif 2808 # if defined(USE_FLOCK64) 2809 # define flock flock64 2810 # endif 2811 # if defined(USE_LOCKF64) 2812 # define lockf lockf64 2813 # endif 2814 # if defined(USE_FCNTL64) 2815 # define fcntl fcntl64 2816 # endif 2817 # if defined(USE_TRUNCATE64) 2818 # define truncate truncate64 2819 # endif 2820 # if defined(USE_FTRUNCATE64) 2821 # define ftruncate ftruncate64 2822 # endif 2823 #endif 2824 2825 #ifdef USE_64_BIT_STDIO 2826 # ifdef HAS_FPOS64_T 2827 # undef Fpos_t 2828 # define Fpos_t fpos64_t 2829 # endif 2830 /* Most 64-bit environments have defines like _LARGEFILE_SOURCE that 2831 * will trigger defines like the ones below. Some 64-bit environments, 2832 * however, do not. */ 2833 # if defined(USE_FOPEN64) 2834 # define fopen fopen64 2835 # endif 2836 # if defined(USE_FSEEK64) 2837 # define fseek fseek64 /* don't do fseeko here, see perlio.c */ 2838 # endif 2839 # if defined(USE_FTELL64) 2840 # define ftell ftell64 /* don't do ftello here, see perlio.c */ 2841 # endif 2842 # if defined(USE_FSETPOS64) 2843 # define fsetpos fsetpos64 2844 # endif 2845 # if defined(USE_FGETPOS64) 2846 # define fgetpos fgetpos64 2847 # endif 2848 # if defined(USE_TMPFILE64) 2849 # define tmpfile tmpfile64 2850 # endif 2851 # if defined(USE_FREOPEN64) 2852 # define freopen freopen64 2853 # endif 2854 #endif 2855 2856 #if defined(OS2) 2857 # include "iperlsys.h" 2858 #endif 2859 2860 #ifdef DOSISH 2861 # if defined(OS2) 2862 # include "os2ish.h" 2863 # else 2864 # include "dosish.h" 2865 # endif 2866 #elif defined(VMS) 2867 # include "vmsish.h" 2868 #elif defined(PLAN9) 2869 # include "./plan9/plan9ish.h" 2870 #elif defined(__VOS__) 2871 # ifdef __GNUC__ 2872 # include "./vos/vosish.h" 2873 # else 2874 # include "vos/vosish.h" 2875 # endif 2876 #elif defined(__SYMBIAN32__) 2877 # include "symbian/symbianish.h" 2878 #elif defined(__HAIKU__) 2879 # include "haiku/haikuish.h" 2880 #else 2881 # include "unixish.h" 2882 #endif 2883 2884 #ifdef __amigaos4__ 2885 # include "amigaos.h" 2886 # undef FD_CLOEXEC /* a lie in AmigaOS */ 2887 #endif 2888 2889 /* NSIG logic from Configure --> */ 2890 #ifndef NSIG 2891 # ifdef _NSIG 2892 # define NSIG (_NSIG) 2893 # elif defined(SIGMAX) 2894 # define NSIG (SIGMAX+1) 2895 # elif defined(SIG_MAX) 2896 # define NSIG (SIG_MAX+1) 2897 # elif defined(_SIG_MAX) 2898 # define NSIG (_SIG_MAX+1) 2899 # elif defined(MAXSIG) 2900 # define NSIG (MAXSIG+1) 2901 # elif defined(MAX_SIG) 2902 # define NSIG (MAX_SIG+1) 2903 # elif defined(SIGARRAYSIZE) 2904 # define NSIG SIGARRAYSIZE /* Assume ary[SIGARRAYSIZE] */ 2905 # elif defined(_sys_nsig) 2906 # define NSIG (_sys_nsig) /* Solaris 2.5 */ 2907 # else 2908 /* Default to some arbitrary number that's big enough to get most 2909 * of the common signals. */ 2910 # define NSIG 50 2911 # endif 2912 #endif 2913 /* <-- NSIG logic from Configure */ 2914 2915 #ifndef NO_ENVIRON_ARRAY 2916 # define USE_ENVIRON_ARRAY 2917 #endif 2918 2919 #ifdef USE_ITHREADS 2920 /* On some platforms it would be safe to use a read/write mutex with many 2921 * readers possible at the same time. On other platforms, notably IBM ones, 2922 * subsequent getenv calls destroy earlier ones. Those platforms would not 2923 * be able to handle simultaneous getenv calls */ 2924 # define ENV_LOCK MUTEX_LOCK(&PL_env_mutex) 2925 # define ENV_UNLOCK MUTEX_UNLOCK(&PL_env_mutex) 2926 # define ENV_INIT MUTEX_INIT(&PL_env_mutex); 2927 # define ENV_TERM MUTEX_DESTROY(&PL_env_mutex); 2928 #else 2929 # define ENV_LOCK NOOP; 2930 # define ENV_UNLOCK NOOP; 2931 # define ENV_INIT NOOP; 2932 # define ENV_TERM NOOP; 2933 #endif 2934 2935 /* Some critical sections need to lock both the locale and the environment. 2936 * XXX khw intends to change this to lock both mutexes, but that brings up 2937 * issues of potential deadlock, so should be done at the beginning of a 2938 * development cycle. So for now, it just locks the environment. Note that 2939 * many modern platforms are locale-thread-safe anyway, so locking the locale 2940 * mutex is a no-op anyway */ 2941 #define ENV_LOCALE_LOCK ENV_LOCK 2942 #define ENV_LOCALE_UNLOCK ENV_UNLOCK 2943 2944 /* And some critical sections care only that no one else is writing either the 2945 * locale nor the environment. XXX Again this is for the future. This can be 2946 * simulated with using COND_WAIT in thread.h */ 2947 #define ENV_LOCALE_READ_LOCK ENV_LOCALE_LOCK 2948 #define ENV_LOCALE_READ_UNLOCK ENV_LOCALE_UNLOCK 2949 2950 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) 2951 /* having sigaction(2) means that the OS supports both 1-arg and 3-arg 2952 * signal handlers. But the perl core itself only fully supports 1-arg 2953 * handlers, so don't enable for now. 2954 * NB: POSIX::sigaction() supports both. 2955 * 2956 * # define PERL_USE_3ARG_SIGHANDLER 2957 */ 2958 #endif 2959 2960 /* Siginfo_t: 2961 * This is an alias for the OS's siginfo_t, except that where the OS 2962 * doesn't support it, declare a dummy version instead. This allows us to 2963 * have signal handler functions which always have a Siginfo_t parameter 2964 * regardless of platform, (and which will just be passed a NULL value 2965 * where the OS doesn't support HAS_SIGACTION). 2966 */ 2967 2968 #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) 2969 typedef siginfo_t Siginfo_t; 2970 #else 2971 #ifdef si_signo /* minix */ 2972 #undef si_signo 2973 #endif 2974 typedef struct { 2975 int si_signo; 2976 } Siginfo_t; 2977 #endif 2978 2979 2980 /* 2981 * initialise to avoid floating-point exceptions from overflow, etc 2982 */ 2983 #ifndef PERL_FPU_INIT 2984 # ifdef HAS_FPSETMASK 2985 # if HAS_FLOATINGPOINT_H 2986 # include <floatingpoint.h> 2987 # endif 2988 /* Some operating systems have this as a macro, which in turn expands to a comma 2989 expression, and the last sub-expression is something that gets calculated, 2990 and then they have the gall to warn that a value computed is not used. Hence 2991 cast to void. */ 2992 # define PERL_FPU_INIT (void)fpsetmask(0) 2993 # elif defined(SIGFPE) && defined(SIG_IGN) && !defined(PERL_MICRO) 2994 # define PERL_FPU_INIT PL_sigfpe_saved = (Sighandler_t) signal(SIGFPE, SIG_IGN) 2995 # define PERL_FPU_PRE_EXEC { Sigsave_t xfpe; rsignal_save(SIGFPE, PL_sigfpe_saved, &xfpe); 2996 # define PERL_FPU_POST_EXEC rsignal_restore(SIGFPE, &xfpe); } 2997 # else 2998 # define PERL_FPU_INIT 2999 # endif 3000 #endif 3001 #ifndef PERL_FPU_PRE_EXEC 3002 # define PERL_FPU_PRE_EXEC { 3003 # define PERL_FPU_POST_EXEC } 3004 #endif 3005 3006 /* In Tru64 the cc -ieee enables the IEEE math but disables traps. 3007 * We need to reenable the "invalid" trap because otherwise generation 3008 * of NaN values leaves the IEEE fp flags in bad state, leaving any further 3009 * fp ops behaving strangely (Inf + 1 resulting in zero, for example). */ 3010 #ifdef __osf__ 3011 # include <machine/fpu.h> 3012 # define PERL_SYS_FPU_INIT \ 3013 STMT_START { \ 3014 ieee_set_fp_control(IEEE_TRAP_ENABLE_INV); \ 3015 signal(SIGFPE, SIG_IGN); \ 3016 } STMT_END 3017 #endif 3018 /* In IRIX the default for Flush to Zero bit is true, 3019 * which means that results going below the minimum of normal 3020 * floating points go to zero, instead of going denormal/subnormal. 3021 * This is unlike almost any other system running Perl, so let's clear it. 3022 * [perl #123767] IRIX64 blead (ddce084a) opbasic/arith.t failure, originally 3023 * [perl #120426] small numbers shouldn't round to zero if they have extra floating digits 3024 * 3025 * XXX The flush-to-zero behaviour should be a Configure scan. 3026 * To change the behaviour usually requires some system-specific 3027 * incantation, though, like the below. */ 3028 #ifdef __sgi 3029 # include <sys/fpu.h> 3030 # define PERL_SYS_FPU_INIT \ 3031 STMT_START { \ 3032 union fpc_csr csr; \ 3033 csr.fc_word = get_fpc_csr(); \ 3034 csr.fc_struct.flush = 0; \ 3035 set_fpc_csr(csr.fc_word); \ 3036 } STMT_END 3037 #endif 3038 3039 #ifndef PERL_SYS_FPU_INIT 3040 # define PERL_SYS_FPU_INIT NOOP 3041 #endif 3042 3043 #ifndef PERL_SYS_INIT3_BODY 3044 # define PERL_SYS_INIT3_BODY(argvp,argcp,envp) PERL_SYS_INIT_BODY(argvp,argcp) 3045 #endif 3046 3047 /* 3048 =head1 Miscellaneous Functions 3049 3050 =for apidoc Am|void|PERL_SYS_INIT|int *argc|char*** argv 3051 Provides system-specific tune up of the C runtime environment necessary to 3052 run Perl interpreters. This should be called only once, before creating 3053 any Perl interpreters. 3054 3055 =for apidoc Am|void|PERL_SYS_INIT3|int *argc|char*** argv|char*** env 3056 Provides system-specific tune up of the C runtime environment necessary to 3057 run Perl interpreters. This should be called only once, before creating 3058 any Perl interpreters. 3059 3060 =for apidoc Am|void|PERL_SYS_TERM| 3061 Provides system-specific clean up of the C runtime environment after 3062 running Perl interpreters. This should be called only once, after 3063 freeing any remaining Perl interpreters. 3064 3065 =cut 3066 */ 3067 3068 #define PERL_SYS_INIT(argc, argv) Perl_sys_init(argc, argv) 3069 #define PERL_SYS_INIT3(argc, argv, env) Perl_sys_init3(argc, argv, env) 3070 #define PERL_SYS_TERM() Perl_sys_term() 3071 3072 #ifndef PERL_WRITE_MSG_TO_CONSOLE 3073 # define PERL_WRITE_MSG_TO_CONSOLE(io, msg, len) PerlIO_write(io, msg, len) 3074 #endif 3075 3076 #ifndef MAXPATHLEN 3077 # ifdef PATH_MAX 3078 # ifdef _POSIX_PATH_MAX 3079 # if PATH_MAX > _POSIX_PATH_MAX 3080 /* POSIX 1990 (and pre) was ambiguous about whether PATH_MAX 3081 * included the null byte or not. Later amendments of POSIX, 3082 * XPG4, the Austin Group, and the Single UNIX Specification 3083 * all explicitly include the null byte in the PATH_MAX. 3084 * Ditto for _POSIX_PATH_MAX. */ 3085 # define MAXPATHLEN PATH_MAX 3086 # else 3087 # define MAXPATHLEN _POSIX_PATH_MAX 3088 # endif 3089 # else 3090 # define MAXPATHLEN (PATH_MAX+1) 3091 # endif 3092 # else 3093 # define MAXPATHLEN 1024 /* Err on the large side. */ 3094 # endif 3095 #endif 3096 3097 /* USE_5005THREADS needs to be after unixish.h as <pthread.h> includes 3098 * <sys/signal.h> which defines NSIG - which will stop inclusion of <signal.h> 3099 * this results in many functions being undeclared which bothers C++ 3100 * May make sense to have threads after "*ish.h" anyway 3101 */ 3102 3103 /* clang Thread Safety Analysis/Annotations/Attributes 3104 * http://clang.llvm.org/docs/ThreadSafetyAnalysis.html 3105 * 3106 * Available since clang 3.6-ish (appeared in 3.4, but shaky still in 3.5). 3107 * Apple XCode hijacks __clang_major__ and __clang_minor__ 3108 * (6.1 means really clang 3.6), so needs extra hijinks 3109 * (could probably also test the contents of __apple_build_version__). 3110 */ 3111 #if defined(USE_ITHREADS) && defined(I_PTHREAD) && \ 3112 defined(__clang__) && \ 3113 !defined(PERL_GLOBAL_STRUCT) && \ 3114 !defined(PERL_GLOBAL_STRUCT_PRIVATE) && \ 3115 !defined(SWIG) && \ 3116 ((!defined(__apple_build_version__) && \ 3117 ((__clang_major__ == 3 && __clang_minor__ >= 6) || \ 3118 (__clang_major__ >= 4))) || \ 3119 (defined(__apple_build_version__) && \ 3120 ((__clang_major__ == 6 && __clang_minor__ >= 1) || \ 3121 (__clang_major__ >= 7)))) 3122 # define PERL_TSA__(x) __attribute__((x)) 3123 # define PERL_TSA_ACTIVE 3124 #else 3125 # define PERL_TSA__(x) /* No TSA, make TSA attributes no-ops. */ 3126 # undef PERL_TSA_ACTIVE 3127 #endif 3128 3129 /* PERL_TSA_CAPABILITY() is used to annotate typedefs. 3130 * typedef old_type PERL_TSA_CAPABILITY("mutex") new_type; 3131 */ 3132 #define PERL_TSA_CAPABILITY(x) \ 3133 PERL_TSA__(capability(x)) 3134 3135 /* In the below examples the mutex must be lexically visible, usually 3136 * either as global variables, or as function arguments. */ 3137 3138 /* PERL_TSA_GUARDED_BY() is used to annotate global variables. 3139 * 3140 * Foo foo PERL_TSA_GUARDED_BY(mutex); 3141 */ 3142 #define PERL_TSA_GUARDED_BY(x) \ 3143 PERL_TSA__(guarded_by(x)) 3144 3145 /* PERL_TSA_PT_GUARDED_BY() is used to annotate global pointers. 3146 * The data _behind_ the pointer is guarded. 3147 * 3148 * Foo* ptr PERL_TSA_PT_GUARDED_BY(mutex); 3149 */ 3150 #define PERL_TSA_PT_GUARDED_BY(x) \ 3151 PERL_TSA__(pt_guarded_by(x)) 3152 3153 /* PERL_TSA_REQUIRES() is used to annotate functions. 3154 * The caller MUST hold the resource when calling the function. 3155 * 3156 * void Foo() PERL_TSA_REQUIRES(mutex); 3157 */ 3158 #define PERL_TSA_REQUIRES(x) \ 3159 PERL_TSA__(requires_capability(x)) 3160 3161 /* PERL_TSA_EXCLUDES() is used to annotate functions. 3162 * The caller MUST NOT hold resource when calling the function. 3163 * 3164 * EXCLUDES should be used when the function first acquires 3165 * the resource and then releases it. Use to avoid deadlock. 3166 * 3167 * void Foo() PERL_TSA_EXCLUDES(mutex); 3168 */ 3169 #define PERL_TSA_EXCLUDES(x) \ 3170 PERL_TSA__(locks_excluded(x)) 3171 3172 /* PERL_TSA_ACQUIRE() is used to annotate functions. 3173 * The caller MUST NOT hold the resource when calling the function, 3174 * and the function will acquire the resource. 3175 * 3176 * void Foo() PERL_TSA_ACQUIRE(mutex); 3177 */ 3178 #define PERL_TSA_ACQUIRE(x) \ 3179 PERL_TSA__(acquire_capability(x)) 3180 3181 /* PERL_TSA_RELEASE() is used to annotate functions. 3182 * The caller MUST hold the resource when calling the function, 3183 * and the function will release the resource. 3184 * 3185 * void Foo() PERL_TSA_RELEASE(mutex); 3186 */ 3187 #define PERL_TSA_RELEASE(x) \ 3188 PERL_TSA__(release_capability(x)) 3189 3190 /* PERL_TSA_NO_TSA is used to annotate functions. 3191 * Used when being intentionally unsafe, or when the code is too 3192 * complicated for the analysis. Use sparingly. 3193 * 3194 * void Foo() PERL_TSA_NO_TSA; 3195 */ 3196 #define PERL_TSA_NO_TSA \ 3197 PERL_TSA__(no_thread_safety_analysis) 3198 3199 /* There are more annotations/attributes available, see the clang 3200 * documentation for details. */ 3201 3202 #if defined(USE_ITHREADS) 3203 # ifdef NETWARE 3204 # include <nw5thread.h> 3205 # elif defined(WIN32) 3206 # include <win32thread.h> 3207 # elif defined(OS2) 3208 # include "os2thread.h" 3209 # elif defined(I_MACH_CTHREADS) 3210 # include <mach/cthreads.h> 3211 typedef cthread_t perl_os_thread; 3212 typedef mutex_t perl_mutex; 3213 typedef condition_t perl_cond; 3214 typedef void * perl_key; 3215 # elif defined(I_PTHREAD) /* Posix threads */ 3216 # include <pthread.h> 3217 typedef pthread_t perl_os_thread; 3218 typedef pthread_mutex_t PERL_TSA_CAPABILITY("mutex") perl_mutex; 3219 typedef pthread_cond_t perl_cond; 3220 typedef pthread_key_t perl_key; 3221 # endif 3222 #endif /* USE_ITHREADS */ 3223 3224 #ifdef PERL_TSA_ACTIVE 3225 /* Since most pthread mutex interfaces have not been annotated, we 3226 * need to have these wrappers. The NO_TSA annotation is quite ugly 3227 * but it cannot be avoided in plain C, unlike in C++, where one could 3228 * e.g. use ACQUIRE() with no arg on a mutex lock method. 3229 * 3230 * The bodies of these wrappers are in util.c 3231 * 3232 * TODO: however, some platforms are starting to get these clang 3233 * thread safety annotations for pthreads, for example FreeBSD. 3234 * Do we need a way to a bypass these wrappers? */ 3235 EXTERN_C int perl_tsa_mutex_lock(perl_mutex* mutex) 3236 PERL_TSA_ACQUIRE(*mutex) 3237 PERL_TSA_NO_TSA; 3238 EXTERN_C int perl_tsa_mutex_unlock(perl_mutex* mutex) 3239 PERL_TSA_RELEASE(*mutex) 3240 PERL_TSA_NO_TSA; 3241 #endif 3242 3243 #if defined(WIN32) 3244 # include "win32.h" 3245 #endif 3246 3247 #ifdef NETWARE 3248 # include "netware.h" 3249 #endif 3250 3251 #define STATUS_UNIX PL_statusvalue 3252 #ifdef VMS 3253 # define STATUS_NATIVE PL_statusvalue_vms 3254 /* 3255 * vaxc$errno is only guaranteed to be valid if errno == EVMSERR, otherwise 3256 * its contents can not be trusted. Unfortunately, Perl seems to check 3257 * it on exit, so it when PL_statusvalue_vms is updated, vaxc$errno should 3258 * be updated also. 3259 */ 3260 # include <stsdef.h> 3261 # include <ssdef.h> 3262 /* Presume this because if VMS changes it, it will require a new 3263 * set of APIs for waiting on children for binary compatibility. 3264 */ 3265 # define child_offset_bits (8) 3266 # ifndef C_FAC_POSIX 3267 # define C_FAC_POSIX 0x35A000 3268 # endif 3269 3270 /* STATUS_EXIT - validates and returns a NATIVE exit status code for the 3271 * platform from the existing UNIX or Native status values. 3272 */ 3273 3274 # define STATUS_EXIT \ 3275 (((I32)PL_statusvalue_vms == -1 ? SS$_ABORT : PL_statusvalue_vms) | \ 3276 (VMSISH_HUSHED ? STS$M_INHIB_MSG : 0)) 3277 3278 3279 /* STATUS_NATIVE_CHILD_SET - Calculate UNIX status that matches the child 3280 * exit code and shifts the UNIX value over the correct number of bits to 3281 * be a child status. Usually the number of bits is 8, but that could be 3282 * platform dependent. The NATIVE status code is presumed to have either 3283 * from a child process. 3284 */ 3285 3286 /* This is complicated. The child processes return a true native VMS 3287 status which must be saved. But there is an assumption in Perl that 3288 the UNIX child status has some relationship to errno values, so 3289 Perl tries to translate it to text in some of the tests. 3290 In order to get the string translation correct, for the error, errno 3291 must be EVMSERR, but that generates a different text message 3292 than what the test programs are expecting. So an errno value must 3293 be derived from the native status value when an error occurs. 3294 That will hide the true native status message. With this version of 3295 perl, the true native child status can always be retrieved so that 3296 is not a problem. But in this case, Pl_statusvalue and errno may 3297 have different values in them. 3298 */ 3299 3300 # define STATUS_NATIVE_CHILD_SET(n) \ 3301 STMT_START { \ 3302 I32 evalue = (I32)n; \ 3303 if (evalue == EVMSERR) { \ 3304 PL_statusvalue_vms = vaxc$errno; \ 3305 PL_statusvalue = evalue; \ 3306 } else { \ 3307 PL_statusvalue_vms = evalue; \ 3308 if (evalue == -1) { \ 3309 PL_statusvalue = -1; \ 3310 PL_statusvalue_vms = SS$_ABORT; /* Should not happen */ \ 3311 } else \ 3312 PL_statusvalue = Perl_vms_status_to_unix(evalue, 1); \ 3313 set_vaxc_errno(evalue); \ 3314 if ((PL_statusvalue_vms & C_FAC_POSIX) == C_FAC_POSIX) \ 3315 set_errno(EVMSERR); \ 3316 else set_errno(Perl_vms_status_to_unix(evalue, 0)); \ 3317 PL_statusvalue = PL_statusvalue << child_offset_bits; \ 3318 } \ 3319 } STMT_END 3320 3321 # ifdef VMSISH_STATUS 3322 # define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_UNIX) 3323 # else 3324 # define STATUS_CURRENT STATUS_UNIX 3325 # endif 3326 3327 /* STATUS_UNIX_SET - takes a UNIX/POSIX errno value and attempts to update 3328 * the NATIVE status to an equivalent value. Can not be used to translate 3329 * exit code values as exit code values are not guaranteed to have any 3330 * relationship at all to errno values. 3331 * This is used when Perl is forcing errno to have a specific value. 3332 */ 3333 # define STATUS_UNIX_SET(n) \ 3334 STMT_START { \ 3335 I32 evalue = (I32)n; \ 3336 PL_statusvalue = evalue; \ 3337 if (PL_statusvalue != -1) { \ 3338 if (PL_statusvalue != EVMSERR) { \ 3339 PL_statusvalue &= 0xFFFF; \ 3340 if (MY_POSIX_EXIT) \ 3341 PL_statusvalue_vms=PL_statusvalue ? SS$_ABORT : SS$_NORMAL;\ 3342 else PL_statusvalue_vms = Perl_unix_status_to_vms(evalue); \ 3343 } \ 3344 else { \ 3345 PL_statusvalue_vms = vaxc$errno; \ 3346 } \ 3347 } \ 3348 else PL_statusvalue_vms = SS$_ABORT; \ 3349 set_vaxc_errno(PL_statusvalue_vms); \ 3350 } STMT_END 3351 3352 /* STATUS_UNIX_EXIT_SET - Takes a UNIX/POSIX exit code and sets 3353 * the NATIVE error status based on it. 3354 * 3355 * When in the default mode to comply with the Perl VMS documentation, 3356 * 0 is a success and any other code sets the NATIVE status to a failure 3357 * code of SS$_ABORT. 3358 * 3359 * In the new POSIX EXIT mode, native status will be set so that the 3360 * actual exit code will can be retrieved by the calling program or 3361 * shell. 3362 * 3363 * If the exit code is not clearly a UNIX parent or child exit status, 3364 * it will be passed through as a VMS status. 3365 */ 3366 3367 # define STATUS_UNIX_EXIT_SET(n) \ 3368 STMT_START { \ 3369 I32 evalue = (I32)n; \ 3370 PL_statusvalue = evalue; \ 3371 if (MY_POSIX_EXIT) { \ 3372 if (evalue <= 0xFF00) { \ 3373 if (evalue > 0xFF) \ 3374 evalue = (evalue >> child_offset_bits) & 0xFF; \ 3375 PL_statusvalue_vms = \ 3376 (C_FAC_POSIX | (evalue << 3 ) | \ 3377 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1)); \ 3378 } else /* forgive them Perl, for they have sinned */ \ 3379 PL_statusvalue_vms = evalue; \ 3380 } else { \ 3381 if (evalue == 0) \ 3382 PL_statusvalue_vms = SS$_NORMAL; \ 3383 else if (evalue <= 0xFF00) \ 3384 PL_statusvalue_vms = SS$_ABORT; \ 3385 else { /* forgive them Perl, for they have sinned */ \ 3386 if (evalue != EVMSERR) PL_statusvalue_vms = evalue; \ 3387 else PL_statusvalue_vms = vaxc$errno; \ 3388 /* And obviously used a VMS status value instead of UNIX */ \ 3389 PL_statusvalue = EVMSERR; \ 3390 } \ 3391 set_vaxc_errno(PL_statusvalue_vms); \ 3392 } \ 3393 } STMT_END 3394 3395 3396 /* STATUS_EXIT_SET - Takes a NATIVE/UNIX/POSIX exit code 3397 * and sets the NATIVE error status based on it. This special case 3398 * is needed to maintain compatibility with past VMS behavior. 3399 * 3400 * In the default mode on VMS, this number is passed through as 3401 * both the NATIVE and UNIX status. Which makes it different 3402 * that the STATUS_UNIX_EXIT_SET. 3403 * 3404 * In the new POSIX EXIT mode, native status will be set so that the 3405 * actual exit code will can be retrieved by the calling program or 3406 * shell. 3407 * 3408 * A POSIX exit code is from 0 to 255. If the exit code is higher 3409 * than this, it needs to be assumed that it is a VMS exit code and 3410 * passed through. 3411 */ 3412 3413 # define STATUS_EXIT_SET(n) \ 3414 STMT_START { \ 3415 I32 evalue = (I32)n; \ 3416 PL_statusvalue = evalue; \ 3417 if (MY_POSIX_EXIT) \ 3418 if (evalue > 255) PL_statusvalue_vms = evalue; else { \ 3419 PL_statusvalue_vms = \ 3420 (C_FAC_POSIX | (evalue << 3 ) | \ 3421 ((evalue == 1) ? (STS$K_ERROR | STS$M_INHIB_MSG) : 1));} \ 3422 else \ 3423 PL_statusvalue_vms = evalue ? evalue : SS$_NORMAL; \ 3424 set_vaxc_errno(PL_statusvalue_vms); \ 3425 } STMT_END 3426 3427 3428 /* This macro forces a success status */ 3429 # define STATUS_ALL_SUCCESS \ 3430 (PL_statusvalue = 0, PL_statusvalue_vms = SS$_NORMAL) 3431 3432 /* This macro forces a failure status */ 3433 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, \ 3434 vaxc$errno = PL_statusvalue_vms = MY_POSIX_EXIT ? \ 3435 (C_FAC_POSIX | (1 << 3) | STS$K_ERROR | STS$M_INHIB_MSG) : SS$_ABORT) 3436 3437 #elif defined(__amigaos4__) 3438 /* A somewhat experimental attempt to simulate posix return code values */ 3439 # define STATUS_NATIVE PL_statusvalue_posix 3440 # define STATUS_NATIVE_CHILD_SET(n) \ 3441 STMT_START { \ 3442 PL_statusvalue_posix = (n); \ 3443 if (PL_statusvalue_posix < 0) { \ 3444 PL_statusvalue = -1; \ 3445 } \ 3446 else { \ 3447 PL_statusvalue = n << 8; \ 3448 } \ 3449 } STMT_END 3450 # define STATUS_UNIX_SET(n) \ 3451 STMT_START { \ 3452 PL_statusvalue = (n); \ 3453 if (PL_statusvalue != -1) \ 3454 PL_statusvalue &= 0xFFFF; \ 3455 } STMT_END 3456 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3457 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3458 # define STATUS_CURRENT STATUS_UNIX 3459 # define STATUS_EXIT STATUS_UNIX 3460 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3461 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3462 3463 #else 3464 # define STATUS_NATIVE PL_statusvalue_posix 3465 # if defined(WCOREDUMP) 3466 # define STATUS_NATIVE_CHILD_SET(n) \ 3467 STMT_START { \ 3468 PL_statusvalue_posix = (n); \ 3469 if (PL_statusvalue_posix == -1) \ 3470 PL_statusvalue = -1; \ 3471 else { \ 3472 PL_statusvalue = \ 3473 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3474 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0) | \ 3475 (WIFSIGNALED(PL_statusvalue_posix) && WCOREDUMP(PL_statusvalue_posix) ? 0x80 : 0); \ 3476 } \ 3477 } STMT_END 3478 # elif defined(WIFEXITED) 3479 # define STATUS_NATIVE_CHILD_SET(n) \ 3480 STMT_START { \ 3481 PL_statusvalue_posix = (n); \ 3482 if (PL_statusvalue_posix == -1) \ 3483 PL_statusvalue = -1; \ 3484 else { \ 3485 PL_statusvalue = \ 3486 (WIFEXITED(PL_statusvalue_posix) ? (WEXITSTATUS(PL_statusvalue_posix) << 8) : 0) | \ 3487 (WIFSIGNALED(PL_statusvalue_posix) ? (WTERMSIG(PL_statusvalue_posix) & 0x7F) : 0); \ 3488 } \ 3489 } STMT_END 3490 # else 3491 # define STATUS_NATIVE_CHILD_SET(n) \ 3492 STMT_START { \ 3493 PL_statusvalue_posix = (n); \ 3494 if (PL_statusvalue_posix == -1) \ 3495 PL_statusvalue = -1; \ 3496 else { \ 3497 PL_statusvalue = \ 3498 PL_statusvalue_posix & 0xFFFF; \ 3499 } \ 3500 } STMT_END 3501 # endif 3502 # define STATUS_UNIX_SET(n) \ 3503 STMT_START { \ 3504 PL_statusvalue = (n); \ 3505 if (PL_statusvalue != -1) \ 3506 PL_statusvalue &= 0xFFFF; \ 3507 } STMT_END 3508 # define STATUS_UNIX_EXIT_SET(n) STATUS_UNIX_SET(n) 3509 # define STATUS_EXIT_SET(n) STATUS_UNIX_SET(n) 3510 # define STATUS_CURRENT STATUS_UNIX 3511 # define STATUS_EXIT STATUS_UNIX 3512 # define STATUS_ALL_SUCCESS (PL_statusvalue = 0, PL_statusvalue_posix = 0) 3513 # define STATUS_ALL_FAILURE (PL_statusvalue = 1, PL_statusvalue_posix = 1) 3514 #endif 3515 3516 /* flags in PL_exit_flags for nature of exit() */ 3517 #define PERL_EXIT_EXPECTED 0x01 3518 #define PERL_EXIT_DESTRUCT_END 0x02 /* Run END in perl_destruct */ 3519 #define PERL_EXIT_WARN 0x04 /* Warn if Perl_my_exit() or Perl_my_failure_exit() called */ 3520 #define PERL_EXIT_ABORT 0x08 /* Call abort() if Perl_my_exit() or Perl_my_failure_exit() called */ 3521 3522 #ifndef PERL_CORE 3523 /* format to use for version numbers in file/directory names */ 3524 /* XXX move to Configure? */ 3525 /* This was only ever used for the current version, and that can be done at 3526 compile time, as PERL_FS_VERSION, so should we just delete it? */ 3527 # ifndef PERL_FS_VER_FMT 3528 # define PERL_FS_VER_FMT "%d.%d.%d" 3529 # endif 3530 #endif 3531 3532 #ifndef PERL_FS_VERSION 3533 # define PERL_FS_VERSION PERL_VERSION_STRING 3534 #endif 3535 3536 /* This defines a way to flush all output buffers. This may be a 3537 * performance issue, so we allow people to disable it. Also, if 3538 * we are using stdio, there are broken implementations of fflush(NULL) 3539 * out there, Solaris being the most prominent. 3540 */ 3541 #ifndef PERL_FLUSHALL_FOR_CHILD 3542 # if defined(USE_PERLIO) || defined(FFLUSH_NULL) 3543 # define PERL_FLUSHALL_FOR_CHILD PerlIO_flush((PerlIO*)NULL) 3544 # elif defined(FFLUSH_ALL) 3545 # define PERL_FLUSHALL_FOR_CHILD my_fflush_all() 3546 # else 3547 # define PERL_FLUSHALL_FOR_CHILD NOOP 3548 # endif 3549 #endif 3550 3551 #ifndef PERL_WAIT_FOR_CHILDREN 3552 # define PERL_WAIT_FOR_CHILDREN NOOP 3553 #endif 3554 3555 /* the traditional thread-unsafe notion of "current interpreter". */ 3556 #ifndef PERL_SET_INTERP 3557 # define PERL_SET_INTERP(i) (PL_curinterp = (PerlInterpreter*)(i)) 3558 #endif 3559 3560 #ifndef PERL_GET_INTERP 3561 # define PERL_GET_INTERP (PL_curinterp) 3562 #endif 3563 3564 #if defined(PERL_IMPLICIT_CONTEXT) && !defined(PERL_GET_THX) 3565 # ifdef MULTIPLICITY 3566 # define PERL_GET_THX ((PerlInterpreter *)PERL_GET_CONTEXT) 3567 # endif 3568 # define PERL_SET_THX(t) PERL_SET_CONTEXT(t) 3569 #endif 3570 3571 /* 3572 This replaces the previous %_ "hack" by the "%p" hacks. 3573 All that is required is that the perl source does not 3574 use "%-p" or "%-<number>p" or "%<number>p" formats. 3575 These formats will still work in perl code. 3576 See comments in sv.c for further details. 3577 3578 Robin Barker 2005-07-14 3579 3580 No longer use %1p for VDf = %vd. RMB 2007-10-19 3581 */ 3582 3583 #ifndef SVf_ 3584 # define SVf_(n) "-" STRINGIFY(n) "p" 3585 #endif 3586 3587 #ifndef SVf 3588 # define SVf "-p" 3589 #endif 3590 3591 #ifndef SVf32 3592 # define SVf32 SVf_(32) 3593 #endif 3594 3595 #ifndef SVf256 3596 # define SVf256 SVf_(256) 3597 #endif 3598 3599 #define SVfARG(p) ((void*)(p)) 3600 3601 #ifndef HEKf 3602 # define HEKf "2p" 3603 #endif 3604 3605 /* Not ideal, but we cannot easily include a number in an already-numeric 3606 * format sequence. */ 3607 #ifndef HEKf256 3608 # define HEKf256 "3p" 3609 #endif 3610 3611 #define HEKfARG(p) ((void*)(p)) 3612 3613 /* 3614 =for apidoc Amnh||UTF8f 3615 =for apidoc Amh||UTF8fARG|bool is_utf8|Size_t byte_len|char *str 3616 3617 =cut 3618 * %4p is a custom format 3619 */ 3620 #ifndef UTF8f 3621 # define UTF8f "d%" UVuf "%4p" 3622 #endif 3623 #define UTF8fARG(u,l,p) (int)cBOOL(u), (UV)(l), (void*)(p) 3624 3625 #define PNf UTF8f 3626 #define PNfARG(pn) (int)1, (UV)PadnameLEN(pn), (void *)PadnamePV(pn) 3627 3628 #ifdef PERL_CORE 3629 /* not used; but needed for backward compatibility with XS code? - RMB */ 3630 # undef UVf 3631 #elif !defined(UVf) 3632 # define UVf UVuf 3633 #endif 3634 3635 #if !defined(DEBUGGING) && !defined(NDEBUG) 3636 # define NDEBUG 1 3637 #endif 3638 #include <assert.h> 3639 3640 /* For functions that are marked as __attribute__noreturn__, it's not 3641 appropriate to call return. In either case, include the lint directive. 3642 */ 3643 #ifdef HASATTRIBUTE_NORETURN 3644 # define NORETURN_FUNCTION_END NOT_REACHED; 3645 #else 3646 # define NORETURN_FUNCTION_END NOT_REACHED; return 0 3647 #endif 3648 3649 #ifdef HAS_BUILTIN_EXPECT 3650 # define EXPECT(expr,val) __builtin_expect(expr,val) 3651 #else 3652 # define EXPECT(expr,val) (expr) 3653 #endif 3654 3655 /* 3656 =head1 Miscellaneous Functions 3657 3658 =for apidoc AmU|bool|LIKELY|const bool expr 3659 3660 Returns the input unchanged, but at the same time it gives a branch prediction 3661 hint to the compiler that this condition is likely to be true. 3662 3663 =for apidoc AmU|bool|UNLIKELY|const bool expr 3664 3665 Returns the input unchanged, but at the same time it gives a branch prediction 3666 hint to the compiler that this condition is likely to be false. 3667 3668 =cut 3669 */ 3670 #define LIKELY(cond) EXPECT(cBOOL(cond),TRUE) 3671 #define UNLIKELY(cond) EXPECT(cBOOL(cond),FALSE) 3672 3673 #ifdef HAS_BUILTIN_CHOOSE_EXPR 3674 /* placeholder */ 3675 #endif 3676 3677 /* STATIC_ASSERT_DECL/STATIC_ASSERT_STMT are like assert(), but for compile 3678 time invariants. That is, their argument must be a constant expression that 3679 can be verified by the compiler. This expression can contain anything that's 3680 known to the compiler, e.g. #define constants, enums, or sizeof (...). If 3681 the expression evaluates to 0, compilation fails. 3682 Because they generate no runtime code (i.e. their use is "free"), they're 3683 always active, even under non-DEBUGGING builds. 3684 STATIC_ASSERT_DECL expands to a declaration and is suitable for use at 3685 file scope (outside of any function). 3686 STATIC_ASSERT_STMT expands to a statement and is suitable for use inside a 3687 function. 3688 */ 3689 #if (! defined(__IBMC__) || __IBMC__ >= 1210) \ 3690 && (( defined(static_assert) && ( defined(_ISOC11_SOURCE) \ 3691 || (__STDC_VERSION__ - 0) >= 201101L)) \ 3692 || (defined(__cplusplus) && __cplusplus >= 201103L)) 3693 /* XXX static_assert is a macro defined in <assert.h> in C11 or a compiler 3694 builtin in C++11. But IBM XL C V11 does not support _Static_assert, no 3695 matter what <assert.h> says. 3696 */ 3697 # define STATIC_ASSERT_DECL(COND) static_assert(COND, #COND) 3698 #else 3699 /* We use a bit-field instead of an array because gcc accepts 3700 'typedef char x[n]' where n is not a compile-time constant. 3701 We want to enforce constantness. 3702 */ 3703 # define STATIC_ASSERT_2(COND, SUFFIX) \ 3704 typedef struct { \ 3705 unsigned int _static_assertion_failed_##SUFFIX : (COND) ? 1 : -1; \ 3706 } _static_assertion_failed_##SUFFIX PERL_UNUSED_DECL 3707 # define STATIC_ASSERT_1(COND, SUFFIX) STATIC_ASSERT_2(COND, SUFFIX) 3708 # define STATIC_ASSERT_DECL(COND) STATIC_ASSERT_1(COND, __LINE__) 3709 #endif 3710 /* We need this wrapper even in C11 because 'case X: static_assert(...);' is an 3711 error (static_assert is a declaration, and only statements can have labels). 3712 */ 3713 #define STATIC_ASSERT_STMT(COND) STMT_START { STATIC_ASSERT_DECL(COND); } STMT_END 3714 3715 #ifndef __has_builtin 3716 # define __has_builtin(x) 0 /* not a clang style compiler */ 3717 #endif 3718 3719 /* ASSUME is like assert(), but it has a benefit in a release build. It is a 3720 hint to a compiler about a statement of fact in a function call free 3721 expression, which allows the compiler to generate better machine code. 3722 In a debug build, ASSUME(x) is a synonym for assert(x). ASSUME(0) means 3723 the control path is unreachable. In a for loop, ASSUME can be used to hint 3724 that a loop will run at least X times. ASSUME is based off MSVC's __assume 3725 intrinsic function, see its documents for more details. 3726 */ 3727 3728 #ifndef DEBUGGING 3729 # if __has_builtin(__builtin_unreachable) \ 3730 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4) /* 4.5 -> */ 3731 # define ASSUME(x) ((x) ? (void) 0 : __builtin_unreachable()) 3732 # elif defined(_MSC_VER) 3733 # define ASSUME(x) __assume(x) 3734 # elif defined(__ARMCC_VERSION) /* untested */ 3735 # define ASSUME(x) __promise(x) 3736 # else 3737 /* a random compiler might define assert to its own special optimization token 3738 so pass it through to C lib as a last resort */ 3739 # define ASSUME(x) assert(x) 3740 # endif 3741 #else 3742 # define ASSUME(x) assert(x) 3743 #endif 3744 3745 #if defined(__sun) /* ASSUME() generates warnings on Solaris */ 3746 # define NOT_REACHED 3747 #elif defined(DEBUGGING) && (__has_builtin(__builtin_unreachable) \ 3748 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5 || __GNUC__ > 4)) /* 4.5 -> */ 3749 # define NOT_REACHED STMT_START { ASSUME(!"UNREACHABLE"); __builtin_unreachable(); } STMT_END 3750 #else 3751 # define NOT_REACHED ASSUME(!"UNREACHABLE") 3752 #endif 3753 3754 /* Some unistd.h's give a prototype for pause() even though 3755 HAS_PAUSE ends up undefined. This causes the #define 3756 below to be rejected by the compiler. Sigh. 3757 */ 3758 #ifdef HAS_PAUSE 3759 #define Pause pause 3760 #else 3761 #define Pause() sleep((32767<<16)+32767) 3762 #endif 3763 3764 #ifndef IOCPARM_LEN 3765 # ifdef IOCPARM_MASK 3766 /* on BSDish systems we're safe */ 3767 # define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK) 3768 # elif defined(_IOC_SIZE) && defined(__GLIBC__) 3769 /* on Linux systems we're safe; except when we're not [perl #38223] */ 3770 # define IOCPARM_LEN(x) (_IOC_SIZE(x) < 256 ? 256 : _IOC_SIZE(x)) 3771 # else 3772 /* otherwise guess at what's safe */ 3773 # define IOCPARM_LEN(x) 256 3774 # endif 3775 #endif 3776 3777 #if defined(__CYGWIN__) 3778 /* USEMYBINMODE 3779 * This symbol, if defined, indicates that the program should 3780 * use the routine my_binmode(FILE *fp, char iotype, int mode) to insure 3781 * that a file is in "binary" mode -- that is, that no translation 3782 * of bytes occurs on read or write operations. 3783 */ 3784 # define USEMYBINMODE /**/ 3785 # include <io.h> /* for setmode() prototype */ 3786 # define my_binmode(fp, iotype, mode) \ 3787 cBOOL(PerlLIO_setmode(fileno(fp), mode) != -1) 3788 #endif 3789 3790 #ifdef __CYGWIN__ 3791 void init_os_extras(void); 3792 #endif 3793 3794 #ifdef UNION_ANY_DEFINITION 3795 UNION_ANY_DEFINITION; 3796 #else 3797 union any { 3798 void* any_ptr; 3799 SV* any_sv; 3800 SV** any_svp; 3801 GV* any_gv; 3802 AV* any_av; 3803 HV* any_hv; 3804 OP* any_op; 3805 char* any_pv; 3806 char** any_pvp; 3807 I32 any_i32; 3808 U32 any_u32; 3809 IV any_iv; 3810 UV any_uv; 3811 long any_long; 3812 bool any_bool; 3813 void (*any_dptr) (void*); 3814 void (*any_dxptr) (pTHX_ void*); 3815 }; 3816 #endif 3817 3818 typedef I32 (*filter_t) (pTHX_ int, SV *, int); 3819 3820 #define FILTER_READ(idx, sv, len) filter_read(idx, sv, len) 3821 #define FILTER_DATA(idx) \ 3822 (PL_parser ? AvARRAY(PL_parser->rsfp_filters)[idx] : NULL) 3823 #define FILTER_ISREADER(idx) \ 3824 (PL_parser && PL_parser->rsfp_filters \ 3825 && idx >= AvFILLp(PL_parser->rsfp_filters)) 3826 #define PERL_FILTER_EXISTS(i) \ 3827 (PL_parser && PL_parser->rsfp_filters \ 3828 && (i) <= av_tindex(PL_parser->rsfp_filters)) 3829 3830 #if defined(_AIX) && !defined(_AIX43) 3831 #if defined(USE_REENTRANT) || defined(_REENTRANT) || defined(_THREAD_SAFE) 3832 /* We cannot include <crypt.h> to get the struct crypt_data 3833 * because of setkey prototype problems when threading */ 3834 typedef struct crypt_data { /* straight from /usr/include/crypt.h */ 3835 /* From OSF, Not needed in AIX 3836 char C[28], D[28]; 3837 */ 3838 char E[48]; 3839 char KS[16][48]; 3840 char block[66]; 3841 char iobuf[16]; 3842 } CRYPTD; 3843 #endif /* threading */ 3844 #endif /* AIX */ 3845 3846 #ifndef PERL_CALLCONV 3847 # ifdef __cplusplus 3848 # define PERL_CALLCONV extern "C" 3849 # else 3850 # define PERL_CALLCONV 3851 # endif 3852 #endif 3853 #ifndef PERL_CALLCONV_NO_RET 3854 # define PERL_CALLCONV_NO_RET PERL_CALLCONV 3855 #endif 3856 3857 /* PERL_STATIC_NO_RET is supposed to be equivalent to STATIC on builds that 3858 dont have a noreturn as a declaration specifier 3859 */ 3860 #ifndef PERL_STATIC_NO_RET 3861 # define PERL_STATIC_NO_RET STATIC 3862 #endif 3863 /* PERL_STATIC_NO_RET is supposed to be equivalent to PERL_STATIC_INLINE on 3864 builds that dont have a noreturn as a declaration specifier 3865 */ 3866 #ifndef PERL_STATIC_INLINE_NO_RET 3867 # define PERL_STATIC_INLINE_NO_RET PERL_STATIC_INLINE 3868 #endif 3869 3870 #ifndef PERL_STATIC_FORCE_INLINE 3871 # define PERL_STATIC_FORCE_INLINE PERL_STATIC_INLINE 3872 #endif 3873 3874 #ifndef PERL_STATIC_FORCE_INLINE_NO_RET 3875 # define PERL_STATIC_FORCE_INLINE_NO_RET PERL_STATIC_INLINE 3876 #endif 3877 3878 #if !defined(OS2) 3879 # include "iperlsys.h" 3880 #endif 3881 3882 #ifdef __LIBCATAMOUNT__ 3883 #undef HAS_PASSWD /* unixish.h but not unixish enough. */ 3884 #undef HAS_GROUP 3885 #define FAKE_BIT_BUCKET 3886 #endif 3887 3888 /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0. 3889 * Note that the USE_HASH_SEED and similar defines are *NOT* defined by 3890 * Configure, despite their names being similar to other defines like 3891 * USE_ITHREADS. Configure in fact knows nothing about the randomised 3892 * hashes. Therefore to enable/disable the hash randomisation defines 3893 * use the Configure -Accflags=... instead. */ 3894 #if !defined(NO_HASH_SEED) && !defined(USE_HASH_SEED) 3895 # define USE_HASH_SEED 3896 #endif 3897 3898 #include "perly.h" 3899 3900 3901 /* macros to define bit-fields in structs. */ 3902 #ifndef PERL_BITFIELD8 3903 # define PERL_BITFIELD8 U8 3904 #endif 3905 #ifndef PERL_BITFIELD16 3906 # define PERL_BITFIELD16 U16 3907 #endif 3908 #ifndef PERL_BITFIELD32 3909 # define PERL_BITFIELD32 U32 3910 #endif 3911 3912 #include "sv.h" 3913 #include "regexp.h" 3914 #include "util.h" 3915 #include "form.h" 3916 #include "gv.h" 3917 #include "pad.h" 3918 #include "cv.h" 3919 #include "opnames.h" 3920 #include "op.h" 3921 #include "hv.h" 3922 #include "cop.h" 3923 #include "av.h" 3924 #include "mg.h" 3925 #include "scope.h" 3926 #include "warnings.h" 3927 #include "utf8.h" 3928 3929 /* these would be in doio.h if there was such a file */ 3930 #define my_stat() my_stat_flags(SV_GMAGIC) 3931 #define my_lstat() my_lstat_flags(SV_GMAGIC) 3932 3933 /* defined in sv.c, but also used in [ach]v.c */ 3934 #undef _XPV_HEAD 3935 #undef _XPVMG_HEAD 3936 #undef _XPVCV_COMMON 3937 3938 #include "parser.h" 3939 3940 typedef struct magic_state MGS; /* struct magic_state defined in mg.c */ 3941 3942 #if defined(PERL_IN_REGCOMP_C) || defined(PERL_IN_REGEXEC_C) 3943 3944 /* These have to be predeclared, as they are used in proto.h which is #included 3945 * before their definitions in regcomp.h. */ 3946 3947 struct scan_data_t; 3948 typedef struct regnode_charclass regnode_charclass; 3949 3950 /* A hopefully less confusing name. The sub-classes are all Posix classes only 3951 * used under /l matching */ 3952 typedef struct regnode_charclass_posixl regnode_charclass_class; 3953 typedef struct regnode_charclass_posixl regnode_charclass_posixl; 3954 3955 typedef struct regnode_ssc regnode_ssc; 3956 typedef struct RExC_state_t RExC_state_t; 3957 struct _reg_trie_data; 3958 3959 #endif 3960 3961 struct ptr_tbl_ent { 3962 struct ptr_tbl_ent* next; 3963 const void* oldval; 3964 void* newval; 3965 }; 3966 3967 struct ptr_tbl { 3968 struct ptr_tbl_ent** tbl_ary; 3969 UV tbl_max; 3970 UV tbl_items; 3971 struct ptr_tbl_arena *tbl_arena; 3972 struct ptr_tbl_ent *tbl_arena_next; 3973 struct ptr_tbl_ent *tbl_arena_end; 3974 }; 3975 3976 #if defined(htonl) && !defined(HAS_HTONL) 3977 #define HAS_HTONL 3978 #endif 3979 #if defined(htons) && !defined(HAS_HTONS) 3980 #define HAS_HTONS 3981 #endif 3982 #if defined(ntohl) && !defined(HAS_NTOHL) 3983 #define HAS_NTOHL 3984 #endif 3985 #if defined(ntohs) && !defined(HAS_NTOHS) 3986 #define HAS_NTOHS 3987 #endif 3988 #ifndef HAS_HTONL 3989 #define HAS_HTONS 3990 #define HAS_HTONL 3991 #define HAS_NTOHS 3992 #define HAS_NTOHL 3993 # if (BYTEORDER & 0xffff) == 0x4321 3994 /* Big endian system, so ntohl, ntohs, htonl and htons do not need to 3995 re-order their values. However, to behave identically to the alternative 3996 implementations, they should truncate to the correct size. */ 3997 # define ntohl(x) ((x)&0xFFFFFFFF) 3998 # define htonl(x) ntohl(x) 3999 # define ntohs(x) ((x)&0xFFFF) 4000 # define htons(x) ntohs(x) 4001 # elif BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 4002 4003 /* Note that we can't straight out declare our own htonl and htons because 4004 the Win32 build process forcibly undefines HAS_HTONL etc for its miniperl, 4005 to avoid the overhead of initialising the socket subsystem, but the headers 4006 that *declare* the various functions are still seen. If we declare our own 4007 htonl etc they will clash with the declarations in the Win32 headers. */ 4008 4009 PERL_STATIC_INLINE U32 4010 my_swap32(const U32 x) { 4011 return ((x & 0xFF) << 24) | ((x >> 24) & 0xFF) 4012 | ((x & 0x0000FF00) << 8) | ((x & 0x00FF0000) >> 8); 4013 } 4014 4015 PERL_STATIC_INLINE U16 4016 my_swap16(const U16 x) { 4017 return ((x & 0xFF) << 8) | ((x >> 8) & 0xFF); 4018 } 4019 4020 # define htonl(x) my_swap32(x) 4021 # define ntohl(x) my_swap32(x) 4022 # define ntohs(x) my_swap16(x) 4023 # define htons(x) my_swap16(x) 4024 # else 4025 # error "Unsupported byteorder" 4026 /* The C pre-processor doesn't let us return the value of BYTEORDER as part of 4027 the error message. Please check the value of the macro BYTEORDER, as defined 4028 in config.h. The values of BYTEORDER we expect are 4029 4030 big endian little endian 4031 32 bit 0x4321 0x1234 4032 64 bit 0x87654321 0x12345678 4033 4034 If you have a system with a different byte order, please see 4035 pod/perlhack.pod for how to submit a patch to add supporting code. 4036 */ 4037 # endif 4038 #endif 4039 4040 /* 4041 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. 4042 * -DWS 4043 */ 4044 #if BYTEORDER == 0x1234 || BYTEORDER == 0x12345678 4045 /* Little endian system, so vtohl, vtohs, htovl and htovs do not need to 4046 re-order their values. However, to behave identically to the alternative 4047 implementations, they should truncate to the correct size. */ 4048 # define vtohl(x) ((x)&0xFFFFFFFF) 4049 # define vtohs(x) ((x)&0xFFFF) 4050 # define htovl(x) vtohl(x) 4051 # define htovs(x) vtohs(x) 4052 #elif BYTEORDER == 0x4321 || BYTEORDER == 0x87654321 4053 # define vtohl(x) ((((x)&0xFF)<<24) \ 4054 +(((x)>>24)&0xFF) \ 4055 +(((x)&0x0000FF00)<<8) \ 4056 +(((x)&0x00FF0000)>>8) ) 4057 # define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF)) 4058 # define htovl(x) vtohl(x) 4059 # define htovs(x) vtohs(x) 4060 #else 4061 # error "Unsupported byteorder" 4062 /* If you have need for current perl on PDP-11 or similar, and can help test 4063 that blead keeps working on a mixed-endian system, then see 4064 pod/perlhack.pod for how to submit patches to things working again. */ 4065 #endif 4066 4067 /* *MAX Plus 1. A floating point value. 4068 Hopefully expressed in a way that dodgy floating point can't mess up. 4069 >> 2 rather than 1, so that value is safely less than I32_MAX after 1 4070 is added to it 4071 May find that some broken compiler will want the value cast to I32. 4072 [after the shift, as signed >> may not be as secure as unsigned >>] 4073 */ 4074 #define I32_MAX_P1 (2.0 * (1 + (((U32)I32_MAX) >> 1))) 4075 #define U32_MAX_P1 (4.0 * (1 + ((U32_MAX) >> 2))) 4076 /* For compilers that can't correctly cast NVs over 0x7FFFFFFF (or 4077 0x7FFFFFFFFFFFFFFF) to an unsigned integer. In the future, sizeof(UV) 4078 may be greater than sizeof(IV), so don't assume that half max UV is max IV. 4079 */ 4080 #define U32_MAX_P1_HALF (2.0 * (1 + ((U32_MAX) >> 2))) 4081 4082 #define UV_MAX_P1 (4.0 * (1 + ((UV_MAX) >> 2))) 4083 #define IV_MAX_P1 (2.0 * (1 + (((UV)IV_MAX) >> 1))) 4084 #define UV_MAX_P1_HALF (2.0 * (1 + ((UV_MAX) >> 2))) 4085 4086 /* This may look like unnecessary jumping through hoops, but converting 4087 out of range floating point values to integers *is* undefined behaviour, 4088 and it is starting to bite. 4089 */ 4090 #ifndef CAST_INLINE 4091 #define I_32(what) (cast_i32((NV)(what))) 4092 #define U_32(what) (cast_ulong((NV)(what))) 4093 #define I_V(what) (cast_iv((NV)(what))) 4094 #define U_V(what) (cast_uv((NV)(what))) 4095 #else 4096 #define I_32(n) ((n) < I32_MAX_P1 ? ((n) < I32_MIN ? I32_MIN : (I32) (n)) \ 4097 : ((n) < U32_MAX_P1 ? (I32)(U32) (n) \ 4098 : ((n) > 0 ? (I32) U32_MAX : 0 /* NaN */))) 4099 #define U_32(n) ((n) < 0.0 ? ((n) < I32_MIN ? (UV) I32_MIN : (U32)(I32) (n)) \ 4100 : ((n) < U32_MAX_P1 ? (U32) (n) \ 4101 : ((n) > 0 ? U32_MAX : 0 /* NaN */))) 4102 #define I_V(n) (LIKELY((n) < IV_MAX_P1) ? (UNLIKELY((n) < IV_MIN) ? IV_MIN : (IV) (n)) \ 4103 : (LIKELY((n) < UV_MAX_P1) ? (IV)(UV) (n) \ 4104 : ((n) > 0 ? (IV)UV_MAX : 0 /* NaN */))) 4105 #define U_V(n) ((n) < 0.0 ? (UNLIKELY((n) < IV_MIN) ? (UV) IV_MIN : (UV)(IV) (n)) \ 4106 : (LIKELY((n) < UV_MAX_P1) ? (UV) (n) \ 4107 : ((n) > 0 ? UV_MAX : 0 /* NaN */))) 4108 #endif 4109 4110 #define U_S(what) ((U16)U_32(what)) 4111 #define U_I(what) ((unsigned int)U_32(what)) 4112 #define U_L(what) U_32(what) 4113 4114 #ifdef HAS_SIGNBIT 4115 # ifndef Perl_signbit 4116 # define Perl_signbit signbit 4117 # endif 4118 #endif 4119 4120 /* These do not care about the fractional part, only about the range. */ 4121 #define NV_WITHIN_IV(nv) (I_V(nv) >= IV_MIN && I_V(nv) <= IV_MAX) 4122 #define NV_WITHIN_UV(nv) ((nv)>=0.0 && U_V(nv) >= UV_MIN && U_V(nv) <= UV_MAX) 4123 4124 /* Used with UV/IV arguments: */ 4125 /* XXXX: need to speed it up */ 4126 #define CLUMP_2UV(iv) ((iv) < 0 ? 0 : (UV)(iv)) 4127 #define CLUMP_2IV(uv) ((uv) > (UV)IV_MAX ? IV_MAX : (IV)(uv)) 4128 4129 #ifndef MAXSYSFD 4130 # define MAXSYSFD 2 4131 #endif 4132 4133 #ifndef __cplusplus 4134 #if !(defined(WIN32) || defined(SYMBIAN)) 4135 Uid_t getuid (void); 4136 Uid_t geteuid (void); 4137 Gid_t getgid (void); 4138 Gid_t getegid (void); 4139 #endif 4140 #endif 4141 4142 #ifndef Perl_debug_log 4143 # define Perl_debug_log PerlIO_stderr() 4144 #endif 4145 4146 #ifndef Perl_error_log 4147 # define Perl_error_log (PL_stderrgv \ 4148 && isGV(PL_stderrgv) \ 4149 && GvIOp(PL_stderrgv) \ 4150 && IoOFP(GvIOp(PL_stderrgv)) \ 4151 ? IoOFP(GvIOp(PL_stderrgv)) \ 4152 : PerlIO_stderr()) 4153 #endif 4154 4155 4156 #define DEBUG_p_FLAG 0x00000001 /* 1 */ 4157 #define DEBUG_s_FLAG 0x00000002 /* 2 */ 4158 #define DEBUG_l_FLAG 0x00000004 /* 4 */ 4159 #define DEBUG_t_FLAG 0x00000008 /* 8 */ 4160 #define DEBUG_o_FLAG 0x00000010 /* 16 */ 4161 #define DEBUG_c_FLAG 0x00000020 /* 32 */ 4162 #define DEBUG_P_FLAG 0x00000040 /* 64 */ 4163 #define DEBUG_m_FLAG 0x00000080 /* 128 */ 4164 #define DEBUG_f_FLAG 0x00000100 /* 256 */ 4165 #define DEBUG_r_FLAG 0x00000200 /* 512 */ 4166 #define DEBUG_x_FLAG 0x00000400 /* 1024 */ 4167 #define DEBUG_u_FLAG 0x00000800 /* 2048 */ 4168 /* U is reserved for Unofficial, exploratory hacking */ 4169 #define DEBUG_U_FLAG 0x00001000 /* 4096 */ 4170 /* spare 8192 */ 4171 #define DEBUG_X_FLAG 0x00004000 /* 16384 */ 4172 #define DEBUG_D_FLAG 0x00008000 /* 32768 */ 4173 #define DEBUG_S_FLAG 0x00010000 /* 65536 */ 4174 #define DEBUG_T_FLAG 0x00020000 /* 131072 */ 4175 #define DEBUG_R_FLAG 0x00040000 /* 262144 */ 4176 #define DEBUG_J_FLAG 0x00080000 /* 524288 */ 4177 #define DEBUG_v_FLAG 0x00100000 /*1048576 */ 4178 #define DEBUG_C_FLAG 0x00200000 /*2097152 */ 4179 #define DEBUG_A_FLAG 0x00400000 /*4194304 */ 4180 #define DEBUG_q_FLAG 0x00800000 /*8388608 */ 4181 #define DEBUG_M_FLAG 0x01000000 /*16777216*/ 4182 #define DEBUG_B_FLAG 0x02000000 /*33554432*/ 4183 #define DEBUG_L_FLAG 0x04000000 /*67108864*/ 4184 #define DEBUG_i_FLAG 0x08000000 /*134217728*/ 4185 #define DEBUG_y_FLAG 0x10000000 /*268435456*/ 4186 #define DEBUG_MASK 0x1FFFEFFF /* mask of all the standard flags */ 4187 4188 #define DEBUG_DB_RECURSE_FLAG 0x40000000 4189 #define DEBUG_TOP_FLAG 0x80000000 /* -D was given --> PL_debug |= FLAG */ 4190 4191 # define DEBUG_p_TEST_ UNLIKELY(PL_debug & DEBUG_p_FLAG) 4192 # define DEBUG_s_TEST_ UNLIKELY(PL_debug & DEBUG_s_FLAG) 4193 # define DEBUG_l_TEST_ UNLIKELY(PL_debug & DEBUG_l_FLAG) 4194 # define DEBUG_t_TEST_ UNLIKELY(PL_debug & DEBUG_t_FLAG) 4195 # define DEBUG_o_TEST_ UNLIKELY(PL_debug & DEBUG_o_FLAG) 4196 # define DEBUG_c_TEST_ UNLIKELY(PL_debug & DEBUG_c_FLAG) 4197 # define DEBUG_P_TEST_ UNLIKELY(PL_debug & DEBUG_P_FLAG) 4198 # define DEBUG_m_TEST_ UNLIKELY(PL_debug & DEBUG_m_FLAG) 4199 # define DEBUG_f_TEST_ UNLIKELY(PL_debug & DEBUG_f_FLAG) 4200 # define DEBUG_r_TEST_ UNLIKELY(PL_debug & DEBUG_r_FLAG) 4201 # define DEBUG_x_TEST_ UNLIKELY(PL_debug & DEBUG_x_FLAG) 4202 # define DEBUG_u_TEST_ UNLIKELY(PL_debug & DEBUG_u_FLAG) 4203 # define DEBUG_U_TEST_ UNLIKELY(PL_debug & DEBUG_U_FLAG) 4204 # define DEBUG_X_TEST_ UNLIKELY(PL_debug & DEBUG_X_FLAG) 4205 # define DEBUG_D_TEST_ UNLIKELY(PL_debug & DEBUG_D_FLAG) 4206 # define DEBUG_S_TEST_ UNLIKELY(PL_debug & DEBUG_S_FLAG) 4207 # define DEBUG_T_TEST_ UNLIKELY(PL_debug & DEBUG_T_FLAG) 4208 # define DEBUG_R_TEST_ UNLIKELY(PL_debug & DEBUG_R_FLAG) 4209 # define DEBUG_J_TEST_ UNLIKELY(PL_debug & DEBUG_J_FLAG) 4210 # define DEBUG_v_TEST_ UNLIKELY(PL_debug & DEBUG_v_FLAG) 4211 # define DEBUG_C_TEST_ UNLIKELY(PL_debug & DEBUG_C_FLAG) 4212 # define DEBUG_A_TEST_ UNLIKELY(PL_debug & DEBUG_A_FLAG) 4213 # define DEBUG_q_TEST_ UNLIKELY(PL_debug & DEBUG_q_FLAG) 4214 # define DEBUG_M_TEST_ UNLIKELY(PL_debug & DEBUG_M_FLAG) 4215 # define DEBUG_B_TEST_ UNLIKELY(PL_debug & DEBUG_B_FLAG) 4216 # define DEBUG_L_TEST_ UNLIKELY(PL_debug & DEBUG_L_FLAG) 4217 # define DEBUG_i_TEST_ UNLIKELY(PL_debug & DEBUG_i_FLAG) 4218 # define DEBUG_y_TEST_ UNLIKELY(PL_debug & DEBUG_y_FLAG) 4219 # define DEBUG_Xv_TEST_ (DEBUG_X_TEST_ && DEBUG_v_TEST_) 4220 # define DEBUG_Uv_TEST_ (DEBUG_U_TEST_ && DEBUG_v_TEST_) 4221 # define DEBUG_Pv_TEST_ (DEBUG_P_TEST_ && DEBUG_v_TEST_) 4222 # define DEBUG_Lv_TEST_ (DEBUG_L_TEST_ && DEBUG_v_TEST_) 4223 # define DEBUG_yv_TEST_ (DEBUG_y_TEST_ && DEBUG_v_TEST_) 4224 4225 #ifdef DEBUGGING 4226 4227 # define DEBUG_p_TEST DEBUG_p_TEST_ 4228 # define DEBUG_s_TEST DEBUG_s_TEST_ 4229 # define DEBUG_l_TEST DEBUG_l_TEST_ 4230 # define DEBUG_t_TEST DEBUG_t_TEST_ 4231 # define DEBUG_o_TEST DEBUG_o_TEST_ 4232 # define DEBUG_c_TEST DEBUG_c_TEST_ 4233 # define DEBUG_P_TEST DEBUG_P_TEST_ 4234 # define DEBUG_m_TEST DEBUG_m_TEST_ 4235 # define DEBUG_f_TEST DEBUG_f_TEST_ 4236 # define DEBUG_r_TEST DEBUG_r_TEST_ 4237 # define DEBUG_x_TEST DEBUG_x_TEST_ 4238 # define DEBUG_u_TEST DEBUG_u_TEST_ 4239 # define DEBUG_U_TEST DEBUG_U_TEST_ 4240 # define DEBUG_X_TEST DEBUG_X_TEST_ 4241 # define DEBUG_D_TEST DEBUG_D_TEST_ 4242 # define DEBUG_S_TEST DEBUG_S_TEST_ 4243 # define DEBUG_T_TEST DEBUG_T_TEST_ 4244 # define DEBUG_R_TEST DEBUG_R_TEST_ 4245 # define DEBUG_J_TEST DEBUG_J_TEST_ 4246 # define DEBUG_v_TEST DEBUG_v_TEST_ 4247 # define DEBUG_C_TEST DEBUG_C_TEST_ 4248 # define DEBUG_A_TEST DEBUG_A_TEST_ 4249 # define DEBUG_q_TEST DEBUG_q_TEST_ 4250 # define DEBUG_M_TEST DEBUG_M_TEST_ 4251 # define DEBUG_B_TEST DEBUG_B_TEST_ 4252 # define DEBUG_L_TEST DEBUG_L_TEST_ 4253 # define DEBUG_i_TEST DEBUG_i_TEST_ 4254 # define DEBUG_y_TEST DEBUG_y_TEST_ 4255 # define DEBUG_Xv_TEST DEBUG_Xv_TEST_ 4256 # define DEBUG_Uv_TEST DEBUG_Uv_TEST_ 4257 # define DEBUG_Pv_TEST DEBUG_Pv_TEST_ 4258 # define DEBUG_Lv_TEST DEBUG_Lv_TEST_ 4259 # define DEBUG_yv_TEST DEBUG_yv_TEST_ 4260 4261 # define PERL_DEB(a) a 4262 # define PERL_DEB2(a,b) a 4263 # define PERL_DEBUG(a) if (PL_debug) a 4264 # define DEBUG_p(a) if (DEBUG_p_TEST) a 4265 # define DEBUG_s(a) if (DEBUG_s_TEST) a 4266 # define DEBUG_l(a) if (DEBUG_l_TEST) a 4267 # define DEBUG_t(a) if (DEBUG_t_TEST) a 4268 # define DEBUG_o(a) if (DEBUG_o_TEST) a 4269 # define DEBUG_c(a) if (DEBUG_c_TEST) a 4270 # define DEBUG_P(a) if (DEBUG_P_TEST) a 4271 4272 /* Temporarily turn off memory debugging in case the a 4273 * does memory allocation, either directly or indirectly. */ 4274 # define DEBUG_m(a) \ 4275 STMT_START { \ 4276 if (PERL_GET_INTERP) { \ 4277 dTHX; \ 4278 if (DEBUG_m_TEST) { \ 4279 PL_debug &= ~DEBUG_m_FLAG; \ 4280 a; \ 4281 PL_debug |= DEBUG_m_FLAG; \ 4282 } \ 4283 } \ 4284 } STMT_END 4285 4286 # define DEBUG__(t, a) \ 4287 STMT_START { \ 4288 if (t) STMT_START {a;} STMT_END; \ 4289 } STMT_END 4290 4291 # define DEBUG_f(a) DEBUG__(DEBUG_f_TEST, a) 4292 4293 /* For re_comp.c, re_exec.c, assume -Dr has been specified */ 4294 # ifdef PERL_EXT_RE_BUILD 4295 # define DEBUG_r(a) STMT_START {a;} STMT_END 4296 # else 4297 # define DEBUG_r(a) DEBUG__(DEBUG_r_TEST, a) 4298 # endif /* PERL_EXT_RE_BUILD */ 4299 4300 # define DEBUG_x(a) DEBUG__(DEBUG_x_TEST, a) 4301 # define DEBUG_u(a) DEBUG__(DEBUG_u_TEST, a) 4302 # define DEBUG_U(a) DEBUG__(DEBUG_U_TEST, a) 4303 # define DEBUG_X(a) DEBUG__(DEBUG_X_TEST, a) 4304 # define DEBUG_D(a) DEBUG__(DEBUG_D_TEST, a) 4305 # define DEBUG_Xv(a) DEBUG__(DEBUG_Xv_TEST, a) 4306 # define DEBUG_Uv(a) DEBUG__(DEBUG_Uv_TEST, a) 4307 # define DEBUG_Pv(a) DEBUG__(DEBUG_Pv_TEST, a) 4308 # define DEBUG_Lv(a) DEBUG__(DEBUG_Lv_TEST, a) 4309 # define DEBUG_yv(a) DEBUG__(DEBUG_yv_TEST, a) 4310 4311 # define DEBUG_S(a) DEBUG__(DEBUG_S_TEST, a) 4312 # define DEBUG_T(a) DEBUG__(DEBUG_T_TEST, a) 4313 # define DEBUG_R(a) DEBUG__(DEBUG_R_TEST, a) 4314 # define DEBUG_v(a) DEBUG__(DEBUG_v_TEST, a) 4315 # define DEBUG_C(a) DEBUG__(DEBUG_C_TEST, a) 4316 # define DEBUG_A(a) DEBUG__(DEBUG_A_TEST, a) 4317 # define DEBUG_q(a) DEBUG__(DEBUG_q_TEST, a) 4318 # define DEBUG_M(a) DEBUG__(DEBUG_M_TEST, a) 4319 # define DEBUG_B(a) DEBUG__(DEBUG_B_TEST, a) 4320 # define DEBUG_L(a) DEBUG__(DEBUG_L_TEST, a) 4321 # define DEBUG_i(a) DEBUG__(DEBUG_i_TEST, a) 4322 # define DEBUG_y(a) DEBUG__(DEBUG_y_TEST, a) 4323 4324 #else /* ! DEBUGGING below */ 4325 4326 # define DEBUG_p_TEST (0) 4327 # define DEBUG_s_TEST (0) 4328 # define DEBUG_l_TEST (0) 4329 # define DEBUG_t_TEST (0) 4330 # define DEBUG_o_TEST (0) 4331 # define DEBUG_c_TEST (0) 4332 # define DEBUG_P_TEST (0) 4333 # define DEBUG_m_TEST (0) 4334 # define DEBUG_f_TEST (0) 4335 # define DEBUG_r_TEST (0) 4336 # define DEBUG_x_TEST (0) 4337 # define DEBUG_u_TEST (0) 4338 # define DEBUG_U_TEST (0) 4339 # define DEBUG_X_TEST (0) 4340 # define DEBUG_D_TEST (0) 4341 # define DEBUG_S_TEST (0) 4342 # define DEBUG_T_TEST (0) 4343 # define DEBUG_R_TEST (0) 4344 # define DEBUG_J_TEST (0) 4345 # define DEBUG_v_TEST (0) 4346 # define DEBUG_C_TEST (0) 4347 # define DEBUG_A_TEST (0) 4348 # define DEBUG_q_TEST (0) 4349 # define DEBUG_M_TEST (0) 4350 # define DEBUG_B_TEST (0) 4351 # define DEBUG_L_TEST (0) 4352 # define DEBUG_i_TEST (0) 4353 # define DEBUG_y_TEST (0) 4354 # define DEBUG_Xv_TEST (0) 4355 # define DEBUG_Uv_TEST (0) 4356 # define DEBUG_Pv_TEST (0) 4357 # define DEBUG_Lv_TEST (0) 4358 # define DEBUG_yv_TEST (0) 4359 4360 # define PERL_DEB(a) 4361 # define PERL_DEB2(a,b) b 4362 # define PERL_DEBUG(a) 4363 # define DEBUG_p(a) 4364 # define DEBUG_s(a) 4365 # define DEBUG_l(a) 4366 # define DEBUG_t(a) 4367 # define DEBUG_o(a) 4368 # define DEBUG_c(a) 4369 # define DEBUG_P(a) 4370 # define DEBUG_m(a) 4371 # define DEBUG_f(a) 4372 # define DEBUG_r(a) 4373 # define DEBUG_x(a) 4374 # define DEBUG_u(a) 4375 # define DEBUG_U(a) 4376 # define DEBUG_X(a) 4377 # define DEBUG_D(a) 4378 # define DEBUG_S(a) 4379 # define DEBUG_T(a) 4380 # define DEBUG_R(a) 4381 # define DEBUG_v(a) 4382 # define DEBUG_C(a) 4383 # define DEBUG_A(a) 4384 # define DEBUG_q(a) 4385 # define DEBUG_M(a) 4386 # define DEBUG_B(a) 4387 # define DEBUG_L(a) 4388 # define DEBUG_i(a) 4389 # define DEBUG_y(a) 4390 # define DEBUG_Xv(a) 4391 # define DEBUG_Uv(a) 4392 # define DEBUG_Pv(a) 4393 # define DEBUG_Lv(a) 4394 # define DEBUG_yv(a) 4395 #endif /* DEBUGGING */ 4396 4397 4398 #define DEBUG_SCOPE(where) \ 4399 DEBUG_l( \ 4400 Perl_deb(aTHX_ "%s scope %ld (savestack=%ld) at %s:%d\n", \ 4401 where, (long)PL_scopestack_ix, (long)PL_savestack_ix, \ 4402 __FILE__, __LINE__)); 4403 4404 /* Keep the old croak based assert for those who want it, and as a fallback if 4405 the platform is so heretically non-ANSI that it can't assert. */ 4406 4407 #define Perl_assert(what) PERL_DEB2( \ 4408 ((what) ? ((void) 0) : \ 4409 (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \ 4410 "\", line %d", STRINGIFY(what), __LINE__), \ 4411 (void) 0)), ((void)0)) 4412 4413 /* assert() gets defined if DEBUGGING. 4414 * If no DEBUGGING, the <assert.h> has not been included. */ 4415 #ifndef assert 4416 # define assert(what) Perl_assert(what) 4417 #endif 4418 #ifdef DEBUGGING 4419 # define assert_(what) assert(what), 4420 #else 4421 # define assert_(what) 4422 #endif 4423 4424 struct ufuncs { 4425 I32 (*uf_val)(pTHX_ IV, SV*); 4426 I32 (*uf_set)(pTHX_ IV, SV*); 4427 IV uf_index; 4428 }; 4429 4430 /* In pre-5.7-Perls the PERL_MAGIC_uvar magic didn't get the thread context. 4431 * XS code wanting to be backward compatible can do something 4432 * like the following: 4433 4434 #ifndef PERL_MG_UFUNC 4435 #define PERL_MG_UFUNC(name,ix,sv) I32 name(IV ix, SV *sv) 4436 #endif 4437 4438 static PERL_MG_UFUNC(foo_get, index, val) 4439 { 4440 sv_setsv(val, ...); 4441 return TRUE; 4442 } 4443 4444 -- Doug MacEachern 4445 4446 */ 4447 4448 #ifndef PERL_MG_UFUNC 4449 #define PERL_MG_UFUNC(name,ix,sv) I32 name(pTHX_ IV ix, SV *sv) 4450 #endif 4451 4452 #include <math.h> 4453 #ifdef __VMS 4454 /* isfinite and others are here rather than in math.h as C99 stipulates */ 4455 # include <fp.h> 4456 #endif 4457 4458 #ifndef __cplusplus 4459 # if !defined(WIN32) && !defined(VMS) 4460 #ifndef crypt 4461 char *crypt (const char*, const char*); 4462 #endif 4463 # endif /* !WIN32 */ 4464 # ifndef WIN32 4465 # ifndef getlogin 4466 char *getlogin (void); 4467 # endif 4468 # endif /* !WIN32 */ 4469 #endif /* !__cplusplus */ 4470 4471 /* Fixme on VMS. This needs to be a run-time, not build time options */ 4472 /* Also rename() is affected by this */ 4473 #ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */ 4474 #define UNLINK unlnk 4475 I32 unlnk (pTHX_ const char*); 4476 #else 4477 #define UNLINK PerlLIO_unlink 4478 #endif 4479 4480 /* some versions of glibc are missing the setresuid() proto */ 4481 #if defined(HAS_SETRESUID) && !defined(HAS_SETRESUID_PROTO) 4482 int setresuid(uid_t ruid, uid_t euid, uid_t suid); 4483 #endif 4484 /* some versions of glibc are missing the setresgid() proto */ 4485 #if defined(HAS_SETRESGID) && !defined(HAS_SETRESGID_PROTO) 4486 int setresgid(gid_t rgid, gid_t egid, gid_t sgid); 4487 #endif 4488 4489 #ifndef HAS_SETREUID 4490 # ifdef HAS_SETRESUID 4491 # define setreuid(r,e) setresuid(r,e,(Uid_t)-1) 4492 # define HAS_SETREUID 4493 # endif 4494 #endif 4495 #ifndef HAS_SETREGID 4496 # ifdef HAS_SETRESGID 4497 # define setregid(r,e) setresgid(r,e,(Gid_t)-1) 4498 # define HAS_SETREGID 4499 # endif 4500 #endif 4501 4502 /* Sighandler_t defined in iperlsys.h */ 4503 4504 #ifdef HAS_SIGACTION 4505 typedef struct sigaction Sigsave_t; 4506 #else 4507 typedef Sighandler_t Sigsave_t; 4508 #endif 4509 4510 #define SCAN_DEF 0 4511 #define SCAN_TR 1 4512 #define SCAN_REPL 2 4513 4514 #ifdef DEBUGGING 4515 # ifndef register 4516 # define register 4517 # endif 4518 # define RUNOPS_DEFAULT Perl_runops_debug 4519 #else 4520 # define RUNOPS_DEFAULT Perl_runops_standard 4521 #endif 4522 4523 #if defined(USE_PERLIO) 4524 EXTERN_C void PerlIO_teardown(void); 4525 # ifdef USE_ITHREADS 4526 # define PERLIO_INIT MUTEX_INIT(&PL_perlio_mutex) 4527 # define PERLIO_TERM \ 4528 STMT_START { \ 4529 PerlIO_teardown(); \ 4530 MUTEX_DESTROY(&PL_perlio_mutex);\ 4531 } STMT_END 4532 # else 4533 # define PERLIO_INIT 4534 # define PERLIO_TERM PerlIO_teardown() 4535 # endif 4536 #else 4537 # define PERLIO_INIT 4538 # define PERLIO_TERM 4539 #endif 4540 4541 #ifdef MYMALLOC 4542 # ifdef MUTEX_INIT_CALLS_MALLOC 4543 # define MALLOC_INIT \ 4544 STMT_START { \ 4545 PL_malloc_mutex = NULL; \ 4546 MUTEX_INIT(&PL_malloc_mutex); \ 4547 } STMT_END 4548 # define MALLOC_TERM \ 4549 STMT_START { \ 4550 perl_mutex tmp = PL_malloc_mutex; \ 4551 PL_malloc_mutex = NULL; \ 4552 MUTEX_DESTROY(&tmp); \ 4553 } STMT_END 4554 # else 4555 # define MALLOC_INIT MUTEX_INIT(&PL_malloc_mutex) 4556 # define MALLOC_TERM MUTEX_DESTROY(&PL_malloc_mutex) 4557 # endif 4558 #else 4559 # define MALLOC_INIT 4560 # define MALLOC_TERM 4561 #endif 4562 4563 #if defined(PERL_IMPLICIT_CONTEXT) 4564 4565 struct perl_memory_debug_header; 4566 struct perl_memory_debug_header { 4567 tTHX interpreter; 4568 # if defined(PERL_POISON) || defined(PERL_DEBUG_READONLY_COW) 4569 MEM_SIZE size; 4570 # endif 4571 struct perl_memory_debug_header *prev; 4572 struct perl_memory_debug_header *next; 4573 # ifdef PERL_DEBUG_READONLY_COW 4574 bool readonly; 4575 # endif 4576 }; 4577 4578 #elif defined(PERL_DEBUG_READONLY_COW) 4579 4580 struct perl_memory_debug_header; 4581 struct perl_memory_debug_header { 4582 MEM_SIZE size; 4583 }; 4584 4585 #endif 4586 4587 #if defined (PERL_TRACK_MEMPOOL) || defined (PERL_DEBUG_READONLY_COW) 4588 4589 # define PERL_MEMORY_DEBUG_HEADER_SIZE \ 4590 (sizeof(struct perl_memory_debug_header) + \ 4591 (MEM_ALIGNBYTES - sizeof(struct perl_memory_debug_header) \ 4592 %MEM_ALIGNBYTES) % MEM_ALIGNBYTES) 4593 4594 #else 4595 # define PERL_MEMORY_DEBUG_HEADER_SIZE 0 4596 #endif 4597 4598 #ifdef PERL_TRACK_MEMPOOL 4599 # ifdef PERL_DEBUG_READONLY_COW 4600 # define INIT_TRACK_MEMPOOL(header, interp) \ 4601 STMT_START { \ 4602 (header).interpreter = (interp); \ 4603 (header).prev = (header).next = &(header); \ 4604 (header).readonly = 0; \ 4605 } STMT_END 4606 # else 4607 # define INIT_TRACK_MEMPOOL(header, interp) \ 4608 STMT_START { \ 4609 (header).interpreter = (interp); \ 4610 (header).prev = (header).next = &(header); \ 4611 } STMT_END 4612 # endif 4613 # else 4614 # define INIT_TRACK_MEMPOOL(header, interp) 4615 #endif 4616 4617 #ifdef I_MALLOCMALLOC 4618 /* Needed for malloc_size(), malloc_good_size() on some systems */ 4619 # include <malloc/malloc.h> 4620 #endif 4621 4622 #ifdef MYMALLOC 4623 # define Perl_safesysmalloc_size(where) Perl_malloced_size(where) 4624 #else 4625 # if defined(HAS_MALLOC_SIZE) && !defined(PERL_DEBUG_READONLY_COW) 4626 # ifdef PERL_TRACK_MEMPOOL 4627 # define Perl_safesysmalloc_size(where) \ 4628 (malloc_size(((char *)(where)) - PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4629 # else 4630 # define Perl_safesysmalloc_size(where) malloc_size(where) 4631 # endif 4632 # endif 4633 # ifdef HAS_MALLOC_GOOD_SIZE 4634 # ifdef PERL_TRACK_MEMPOOL 4635 # define Perl_malloc_good_size(how_much) \ 4636 (malloc_good_size((how_much) + PERL_MEMORY_DEBUG_HEADER_SIZE) - PERL_MEMORY_DEBUG_HEADER_SIZE) 4637 # else 4638 # define Perl_malloc_good_size(how_much) malloc_good_size(how_much) 4639 # endif 4640 # else 4641 /* Having this as the identity operation makes some code simpler. */ 4642 # define Perl_malloc_good_size(how_much) (how_much) 4643 # endif 4644 #endif 4645 4646 typedef int (*runops_proc_t)(pTHX); 4647 typedef void (*share_proc_t) (pTHX_ SV *sv); 4648 typedef int (*thrhook_proc_t) (pTHX); 4649 typedef OP* (*PPADDR_t[]) (pTHX); 4650 typedef bool (*destroyable_proc_t) (pTHX_ SV *sv); 4651 typedef void (*despatch_signals_proc_t) (pTHX); 4652 4653 #if defined(__DYNAMIC__) && defined(PERL_DARWIN) && defined(PERL_CORE) 4654 # include <crt_externs.h> /* for the env array */ 4655 # define environ (*_NSGetEnviron()) 4656 #elif defined(USE_ENVIRON_ARRAY) && !defined(environ) 4657 /* VMS and some other platforms don't use the environ array */ 4658 EXTERN_C char **environ; /* environment variables supplied via exec */ 4659 #endif 4660 4661 #define PERL_PATCHLEVEL_H_IMPLICIT 4662 #include "patchlevel.h" 4663 #undef PERL_PATCHLEVEL_H_IMPLICIT 4664 4665 #define PERL_VERSION_STRING STRINGIFY(PERL_REVISION) "." \ 4666 STRINGIFY(PERL_VERSION) "." \ 4667 STRINGIFY(PERL_SUBVERSION) 4668 4669 #define PERL_API_VERSION_STRING STRINGIFY(PERL_API_REVISION) "." \ 4670 STRINGIFY(PERL_API_VERSION) "." \ 4671 STRINGIFY(PERL_API_SUBVERSION) 4672 4673 START_EXTERN_C 4674 4675 /* handy constants */ 4676 EXTCONST char PL_warn_uninit[] 4677 INIT("Use of uninitialized value%s%s%s"); 4678 EXTCONST char PL_warn_uninit_sv[] 4679 INIT("Use of uninitialized value%" SVf "%s%s"); 4680 EXTCONST char PL_warn_nosemi[] 4681 INIT("Semicolon seems to be missing"); 4682 EXTCONST char PL_warn_reserved[] 4683 INIT("Unquoted string \"%s\" may clash with future reserved word"); 4684 EXTCONST char PL_warn_nl[] 4685 INIT("Unsuccessful %s on filename containing newline"); 4686 EXTCONST char PL_no_wrongref[] 4687 INIT("Can't use %s ref as %s ref"); 4688 /* The core no longer needs this here. If you require the string constant, 4689 please inline a copy into your own code. */ 4690 EXTCONST char PL_no_symref[] __attribute__deprecated__ 4691 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use"); 4692 EXTCONST char PL_no_symref_sv[] 4693 INIT("Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"); 4694 4695 EXTCONST char PL_no_usym[] 4696 INIT("Can't use an undefined value as %s reference"); 4697 EXTCONST char PL_no_aelem[] 4698 INIT("Modification of non-creatable array value attempted, subscript %d"); 4699 EXTCONST char PL_no_helem_sv[] 4700 INIT("Modification of non-creatable hash value attempted, subscript \"%" SVf "\""); 4701 EXTCONST char PL_no_modify[] 4702 INIT("Modification of a read-only value attempted"); 4703 EXTCONST char PL_no_mem[sizeof("Out of memory!\n")] 4704 INIT("Out of memory!\n"); 4705 EXTCONST char PL_no_security[] 4706 INIT("Insecure dependency in %s%s"); 4707 EXTCONST char PL_no_sock_func[] 4708 INIT("Unsupported socket function \"%s\" called"); 4709 EXTCONST char PL_no_dir_func[] 4710 INIT("Unsupported directory function \"%s\" called"); 4711 EXTCONST char PL_no_func[] 4712 INIT("The %s function is unimplemented"); 4713 EXTCONST char PL_no_myglob[] 4714 INIT("\"%s\" %s %s can't be in a package"); 4715 EXTCONST char PL_no_localize_ref[] 4716 INIT("Can't localize through a reference"); 4717 EXTCONST char PL_memory_wrap[] 4718 INIT("panic: memory wrap"); 4719 EXTCONST char PL_extended_cp_format[] 4720 INIT("Code point 0x%" UVXf " is not Unicode, requires a Perl extension," 4721 " and so is not portable"); 4722 EXTCONST char PL_Yes[] 4723 INIT("1"); 4724 EXTCONST char PL_No[] 4725 INIT(""); 4726 EXTCONST char PL_Zero[] 4727 INIT("0"); 4728 EXTCONST char PL_hexdigit[] 4729 INIT("0123456789abcdef0123456789ABCDEF"); 4730 4731 EXTCONST STRLEN PL_WARN_ALL 4732 INIT(0); 4733 EXTCONST STRLEN PL_WARN_NONE 4734 INIT(0); 4735 4736 /* This is constant on most architectures, a global on OS/2 */ 4737 #ifndef OS2 4738 EXTCONST char PL_sh_path[] 4739 INIT(SH_PATH); /* full path of shell */ 4740 #endif 4741 4742 #ifdef CSH 4743 EXTCONST char PL_cshname[] 4744 INIT(CSH); 4745 # define PL_cshlen (sizeof(CSH "") - 1) 4746 #endif 4747 4748 /* These are baked at compile time into any shared perl library. 4749 In future releases this will allow us in main() to sanity test the 4750 library we're linking against. */ 4751 4752 EXTCONST U8 PL_revision 4753 INIT(PERL_REVISION); 4754 EXTCONST U8 PL_version 4755 INIT(PERL_VERSION); 4756 EXTCONST U8 PL_subversion 4757 INIT(PERL_SUBVERSION); 4758 4759 EXTCONST char PL_uuemap[65] 4760 INIT("`!\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_"); 4761 4762 /* a special string address whose value is "isa", but which perl knows 4763 * to treat as if it were really "DOES" when printing the method name in 4764 * the "Can't call method '%s'" error message */ 4765 EXTCONST char PL_isa_DOES[] 4766 INIT("isa"); 4767 4768 #ifdef DOINIT 4769 EXTCONST char PL_uudmap[256] = 4770 # ifdef PERL_MICRO 4771 # include "uuudmap.h" 4772 # else 4773 # include "uudmap.h" 4774 # endif 4775 ; 4776 EXTCONST char PL_bitcount[256] = 4777 # ifdef PERL_MICRO 4778 # include "ubitcount.h" 4779 #else 4780 # include "bitcount.h" 4781 # endif 4782 ; 4783 EXTCONST char* const PL_sig_name[] = { SIG_NAME }; 4784 EXTCONST int PL_sig_num[] = { SIG_NUM }; 4785 #else 4786 EXTCONST char PL_uudmap[256]; 4787 EXTCONST char PL_bitcount[256]; 4788 EXTCONST char* const PL_sig_name[]; 4789 EXTCONST int PL_sig_num[]; 4790 #endif 4791 4792 /* fast conversion and case folding tables. The folding tables complement the 4793 * fold, so that 'a' maps to 'A' and 'A' maps to 'a', ignoring more complicated 4794 * folds such as outside the range or to multiple characters. */ 4795 4796 #ifdef DOINIT 4797 #ifndef EBCDIC 4798 4799 /* The EBCDIC fold table depends on the code page, and hence is found in 4800 * utfebcdic.h */ 4801 4802 EXTCONST unsigned char PL_fold[] = { 4803 0, 1, 2, 3, 4, 5, 6, 7, 4804 8, 9, 10, 11, 12, 13, 14, 15, 4805 16, 17, 18, 19, 20, 21, 22, 23, 4806 24, 25, 26, 27, 28, 29, 30, 31, 4807 32, 33, 34, 35, 36, 37, 38, 39, 4808 40, 41, 42, 43, 44, 45, 46, 47, 4809 48, 49, 50, 51, 52, 53, 54, 55, 4810 56, 57, 58, 59, 60, 61, 62, 63, 4811 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4812 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4813 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4814 'x', 'y', 'z', 91, 92, 93, 94, 95, 4815 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4816 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4817 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4818 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4819 128, 129, 130, 131, 132, 133, 134, 135, 4820 136, 137, 138, 139, 140, 141, 142, 143, 4821 144, 145, 146, 147, 148, 149, 150, 151, 4822 152, 153, 154, 155, 156, 157, 158, 159, 4823 160, 161, 162, 163, 164, 165, 166, 167, 4824 168, 169, 170, 171, 172, 173, 174, 175, 4825 176, 177, 178, 179, 180, 181, 182, 183, 4826 184, 185, 186, 187, 188, 189, 190, 191, 4827 192, 193, 194, 195, 196, 197, 198, 199, 4828 200, 201, 202, 203, 204, 205, 206, 207, 4829 208, 209, 210, 211, 212, 213, 214, 215, 4830 216, 217, 218, 219, 220, 221, 222, 223, 4831 224, 225, 226, 227, 228, 229, 230, 231, 4832 232, 233, 234, 235, 236, 237, 238, 239, 4833 240, 241, 242, 243, 244, 245, 246, 247, 4834 248, 249, 250, 251, 252, 253, 254, 255 4835 }; 4836 EXTCONST unsigned char PL_fold_latin1[] = { 4837 /* Full latin1 complement folding, except for three problematic code points: 4838 * Micro sign (181 = 0xB5) and y with diearesis (255 = 0xFF) have their 4839 * fold complements outside the Latin1 range, so can't match something 4840 * that isn't in utf8. 4841 * German lower case sharp s (223 = 0xDF) folds to two characters, 'ss', 4842 * not one, so can't be represented in this table. 4843 * 4844 * All have to be specially handled */ 4845 0, 1, 2, 3, 4, 5, 6, 7, 4846 8, 9, 10, 11, 12, 13, 14, 15, 4847 16, 17, 18, 19, 20, 21, 22, 23, 4848 24, 25, 26, 27, 28, 29, 30, 31, 4849 32, 33, 34, 35, 36, 37, 38, 39, 4850 40, 41, 42, 43, 44, 45, 46, 47, 4851 48, 49, 50, 51, 52, 53, 54, 55, 4852 56, 57, 58, 59, 60, 61, 62, 63, 4853 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4854 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4855 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4856 'x', 'y', 'z', 91, 92, 93, 94, 95, 4857 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4858 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4859 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4860 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4861 128, 129, 130, 131, 132, 133, 134, 135, 4862 136, 137, 138, 139, 140, 141, 142, 143, 4863 144, 145, 146, 147, 148, 149, 150, 151, 4864 152, 153, 154, 155, 156, 157, 158, 159, 4865 160, 161, 162, 163, 164, 165, 166, 167, 4866 168, 169, 170, 171, 172, 173, 174, 175, 4867 176, 177, 178, 179, 180, 181 /*micro */, 182, 183, 4868 184, 185, 186, 187, 188, 189, 190, 191, 4869 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4870 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4871 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4872 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223 /* ss */, 4873 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4874 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4875 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4876 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 4877 255 /* y with diaeresis */ 4878 }; 4879 4880 /* If these tables are accessed through ebcdic, the access will be converted to 4881 * latin1 first */ 4882 EXTCONST unsigned char PL_latin1_lc[] = { /* lowercasing */ 4883 0, 1, 2, 3, 4, 5, 6, 7, 4884 8, 9, 10, 11, 12, 13, 14, 15, 4885 16, 17, 18, 19, 20, 21, 22, 23, 4886 24, 25, 26, 27, 28, 29, 30, 31, 4887 32, 33, 34, 35, 36, 37, 38, 39, 4888 40, 41, 42, 43, 44, 45, 46, 47, 4889 48, 49, 50, 51, 52, 53, 54, 55, 4890 56, 57, 58, 59, 60, 61, 62, 63, 4891 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4892 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4893 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4894 'x', 'y', 'z', 91, 92, 93, 94, 95, 4895 96, 97, 98, 99, 100, 101, 102, 103, 4896 104, 105, 106, 107, 108, 109, 110, 111, 4897 112, 113, 114, 115, 116, 117, 118, 119, 4898 120, 121, 122, 123, 124, 125, 126, 127, 4899 128, 129, 130, 131, 132, 133, 134, 135, 4900 136, 137, 138, 139, 140, 141, 142, 143, 4901 144, 145, 146, 147, 148, 149, 150, 151, 4902 152, 153, 154, 155, 156, 157, 158, 159, 4903 160, 161, 162, 163, 164, 165, 166, 167, 4904 168, 169, 170, 171, 172, 173, 174, 175, 4905 176, 177, 178, 179, 180, 181, 182, 183, 4906 184, 185, 186, 187, 188, 189, 190, 191, 4907 192+32, 193+32, 194+32, 195+32, 196+32, 197+32, 198+32, 199+32, 4908 200+32, 201+32, 202+32, 203+32, 204+32, 205+32, 206+32, 207+32, 4909 208+32, 209+32, 210+32, 211+32, 212+32, 213+32, 214+32, 215, 4910 216+32, 217+32, 218+32, 219+32, 220+32, 221+32, 222+32, 223, 4911 224, 225, 226, 227, 228, 229, 230, 231, 4912 232, 233, 234, 235, 236, 237, 238, 239, 4913 240, 241, 242, 243, 244, 245, 246, 247, 4914 248, 249, 250, 251, 252, 253, 254, 255 4915 }; 4916 4917 /* upper and title case of latin1 characters, modified so that the three tricky 4918 * ones are mapped to 255 (which is one of the three) */ 4919 EXTCONST unsigned char PL_mod_latin1_uc[] = { 4920 0, 1, 2, 3, 4, 5, 6, 7, 4921 8, 9, 10, 11, 12, 13, 14, 15, 4922 16, 17, 18, 19, 20, 21, 22, 23, 4923 24, 25, 26, 27, 28, 29, 30, 31, 4924 32, 33, 34, 35, 36, 37, 38, 39, 4925 40, 41, 42, 43, 44, 45, 46, 47, 4926 48, 49, 50, 51, 52, 53, 54, 55, 4927 56, 57, 58, 59, 60, 61, 62, 63, 4928 64, 65, 66, 67, 68, 69, 70, 71, 4929 72, 73, 74, 75, 76, 77, 78, 79, 4930 80, 81, 82, 83, 84, 85, 86, 87, 4931 88, 89, 90, 91, 92, 93, 94, 95, 4932 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4933 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4934 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4935 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4936 128, 129, 130, 131, 132, 133, 134, 135, 4937 136, 137, 138, 139, 140, 141, 142, 143, 4938 144, 145, 146, 147, 148, 149, 150, 151, 4939 152, 153, 154, 155, 156, 157, 158, 159, 4940 160, 161, 162, 163, 164, 165, 166, 167, 4941 168, 169, 170, 171, 172, 173, 174, 175, 4942 176, 177, 178, 179, 180, 255 /*micro*/, 182, 183, 4943 184, 185, 186, 187, 188, 189, 190, 191, 4944 192, 193, 194, 195, 196, 197, 198, 199, 4945 200, 201, 202, 203, 204, 205, 206, 207, 4946 208, 209, 210, 211, 212, 213, 214, 215, 4947 216, 217, 218, 219, 220, 221, 222, 4948 #if UNICODE_MAJOR_VERSION > 2 \ 4949 || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ 4950 && UNICODE_DOT_DOT_VERSION >= 8) 4951 255 /*sharp s*/, 4952 #else /* uc(sharp s) is 'sharp s' itself in early unicode */ 4953 223, 4954 #endif 4955 224-32, 225-32, 226-32, 227-32, 228-32, 229-32, 230-32, 231-32, 4956 232-32, 233-32, 234-32, 235-32, 236-32, 237-32, 238-32, 239-32, 4957 240-32, 241-32, 242-32, 243-32, 244-32, 245-32, 246-32, 247, 4958 248-32, 249-32, 250-32, 251-32, 252-32, 253-32, 254-32, 255 4959 }; 4960 #endif /* !EBCDIC, but still in DOINIT */ 4961 #else /* ! DOINIT */ 4962 # ifndef EBCDIC 4963 EXTCONST unsigned char PL_fold[]; 4964 EXTCONST unsigned char PL_fold_latin1[]; 4965 EXTCONST unsigned char PL_mod_latin1_uc[]; 4966 EXTCONST unsigned char PL_latin1_lc[]; 4967 # endif 4968 #endif 4969 4970 #ifndef PERL_GLOBAL_STRUCT /* or perlvars.h */ 4971 #ifdef DOINIT 4972 EXT unsigned char PL_fold_locale[256] = { /* Unfortunately not EXTCONST. */ 4973 0, 1, 2, 3, 4, 5, 6, 7, 4974 8, 9, 10, 11, 12, 13, 14, 15, 4975 16, 17, 18, 19, 20, 21, 22, 23, 4976 24, 25, 26, 27, 28, 29, 30, 31, 4977 32, 33, 34, 35, 36, 37, 38, 39, 4978 40, 41, 42, 43, 44, 45, 46, 47, 4979 48, 49, 50, 51, 52, 53, 54, 55, 4980 56, 57, 58, 59, 60, 61, 62, 63, 4981 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 4982 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 4983 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 4984 'x', 'y', 'z', 91, 92, 93, 94, 95, 4985 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 4986 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 4987 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 4988 'X', 'Y', 'Z', 123, 124, 125, 126, 127, 4989 128, 129, 130, 131, 132, 133, 134, 135, 4990 136, 137, 138, 139, 140, 141, 142, 143, 4991 144, 145, 146, 147, 148, 149, 150, 151, 4992 152, 153, 154, 155, 156, 157, 158, 159, 4993 160, 161, 162, 163, 164, 165, 166, 167, 4994 168, 169, 170, 171, 172, 173, 174, 175, 4995 176, 177, 178, 179, 180, 181, 182, 183, 4996 184, 185, 186, 187, 188, 189, 190, 191, 4997 192, 193, 194, 195, 196, 197, 198, 199, 4998 200, 201, 202, 203, 204, 205, 206, 207, 4999 208, 209, 210, 211, 212, 213, 214, 215, 5000 216, 217, 218, 219, 220, 221, 222, 223, 5001 224, 225, 226, 227, 228, 229, 230, 231, 5002 232, 233, 234, 235, 236, 237, 238, 239, 5003 240, 241, 242, 243, 244, 245, 246, 247, 5004 248, 249, 250, 251, 252, 253, 254, 255 5005 }; 5006 #else 5007 EXT unsigned char PL_fold_locale[256]; /* Unfortunately not EXTCONST. */ 5008 #endif 5009 #endif /* !PERL_GLOBAL_STRUCT */ 5010 5011 #ifdef DOINIT 5012 #ifdef EBCDIC 5013 EXTCONST unsigned char PL_freq[] = {/* EBCDIC frequencies for mixed English/C */ 5014 1, 2, 84, 151, 154, 155, 156, 157, 5015 165, 246, 250, 3, 158, 7, 18, 29, 5016 40, 51, 62, 73, 85, 96, 107, 118, 5017 129, 140, 147, 148, 149, 150, 152, 153, 5018 255, 6, 8, 9, 10, 11, 12, 13, 5019 14, 15, 24, 25, 26, 27, 28, 226, 5020 29, 30, 31, 32, 33, 43, 44, 45, 5021 46, 47, 48, 49, 50, 76, 77, 78, 5022 79, 80, 81, 82, 83, 84, 85, 86, 5023 87, 94, 95, 234, 181, 233, 187, 190, 5024 180, 96, 97, 98, 99, 100, 101, 102, 5025 104, 112, 182, 174, 236, 232, 229, 103, 5026 228, 226, 114, 115, 116, 117, 118, 119, 5027 120, 121, 122, 235, 176, 230, 194, 162, 5028 130, 131, 132, 133, 134, 135, 136, 137, 5029 138, 139, 201, 205, 163, 217, 220, 224, 5030 5, 248, 227, 244, 242, 255, 241, 231, 5031 240, 253, 16, 197, 19, 20, 21, 187, 5032 23, 169, 210, 245, 237, 249, 247, 239, 5033 168, 252, 34, 196, 36, 37, 38, 39, 5034 41, 42, 251, 254, 238, 223, 221, 213, 5035 225, 177, 52, 53, 54, 55, 56, 57, 5036 58, 59, 60, 61, 63, 64, 65, 66, 5037 67, 68, 69, 70, 71, 72, 74, 75, 5038 205, 208, 186, 202, 200, 218, 198, 179, 5039 178, 214, 88, 89, 90, 91, 92, 93, 5040 217, 166, 170, 207, 199, 209, 206, 204, 5041 160, 212, 105, 106, 108, 109, 110, 111, 5042 203, 113, 216, 215, 192, 175, 193, 243, 5043 172, 161, 123, 124, 125, 126, 127, 128, 5044 222, 219, 211, 195, 188, 193, 185, 184, 5045 191, 183, 141, 142, 143, 144, 145, 146 5046 }; 5047 #else /* ascii rather than ebcdic */ 5048 EXTCONST unsigned char PL_freq[] = { /* letter frequencies for mixed English/C */ 5049 1, 2, 84, 151, 154, 155, 156, 157, 5050 165, 246, 250, 3, 158, 7, 18, 29, 5051 40, 51, 62, 73, 85, 96, 107, 118, 5052 129, 140, 147, 148, 149, 150, 152, 153, 5053 255, 182, 224, 205, 174, 176, 180, 217, 5054 233, 232, 236, 187, 235, 228, 234, 226, 5055 222, 219, 211, 195, 188, 193, 185, 184, 5056 191, 183, 201, 229, 181, 220, 194, 162, 5057 163, 208, 186, 202, 200, 218, 198, 179, 5058 178, 214, 166, 170, 207, 199, 209, 206, 5059 204, 160, 212, 216, 215, 192, 175, 173, 5060 243, 172, 161, 190, 203, 189, 164, 230, 5061 167, 248, 227, 244, 242, 255, 241, 231, 5062 240, 253, 169, 210, 245, 237, 249, 247, 5063 239, 168, 252, 251, 254, 238, 223, 221, 5064 213, 225, 177, 197, 171, 196, 159, 4, 5065 5, 6, 8, 9, 10, 11, 12, 13, 5066 14, 15, 16, 17, 19, 20, 21, 22, 5067 23, 24, 25, 26, 27, 28, 30, 31, 5068 32, 33, 34, 35, 36, 37, 38, 39, 5069 41, 42, 43, 44, 45, 46, 47, 48, 5070 49, 50, 52, 53, 54, 55, 56, 57, 5071 58, 59, 60, 61, 63, 64, 65, 66, 5072 67, 68, 69, 70, 71, 72, 74, 75, 5073 76, 77, 78, 79, 80, 81, 82, 83, 5074 86, 87, 88, 89, 90, 91, 92, 93, 5075 94, 95, 97, 98, 99, 100, 101, 102, 5076 103, 104, 105, 106, 108, 109, 110, 111, 5077 112, 113, 114, 115, 116, 117, 119, 120, 5078 121, 122, 123, 124, 125, 126, 127, 128, 5079 130, 131, 132, 133, 134, 135, 136, 137, 5080 138, 139, 141, 142, 143, 144, 145, 146 5081 }; 5082 #endif 5083 #else 5084 EXTCONST unsigned char PL_freq[]; 5085 #endif 5086 5087 /* Although only used for debugging, these constants must be available in 5088 * non-debugging builds too, since they're used in ext/re/re_exec.c, 5089 * which has DEBUGGING enabled always */ 5090 #ifdef DOINIT 5091 EXTCONST char* const PL_block_type[] = { 5092 "NULL", 5093 "WHEN", 5094 "BLOCK", 5095 "GIVEN", 5096 "LOOP_ARY", 5097 "LOOP_LAZYSV", 5098 "LOOP_LAZYIV", 5099 "LOOP_LIST", 5100 "LOOP_PLAIN", 5101 "SUB", 5102 "FORMAT", 5103 "EVAL", 5104 "SUBST" 5105 }; 5106 #else 5107 EXTCONST char* PL_block_type[]; 5108 #endif 5109 5110 /* These are all the compile time options that affect binary compatibility. 5111 Other compile time options that are binary compatible are in perl.c 5112 (in S_Internals_V()). Both are combined for the output of perl -V 5113 However, this string will be embedded in any shared perl library, which will 5114 allow us add a comparison check in perlmain.c in the near future. */ 5115 #ifdef DOINIT 5116 EXTCONST char PL_bincompat_options[] = 5117 # ifdef DEBUG_LEAKING_SCALARS 5118 " DEBUG_LEAKING_SCALARS" 5119 # endif 5120 # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP 5121 " DEBUG_LEAKING_SCALARS_FORK_DUMP" 5122 # endif 5123 # ifdef FCRYPT 5124 " FCRYPT" 5125 # endif 5126 # ifdef HAS_TIMES 5127 " HAS_TIMES" 5128 # endif 5129 # ifdef HAVE_INTERP_INTERN 5130 " HAVE_INTERP_INTERN" 5131 # endif 5132 # ifdef MULTIPLICITY 5133 " MULTIPLICITY" 5134 # endif 5135 # ifdef MYMALLOC 5136 " MYMALLOC" 5137 # endif 5138 # ifdef PERLIO_LAYERS 5139 " PERLIO_LAYERS" 5140 # endif 5141 # ifdef PERL_DEBUG_READONLY_COW 5142 " PERL_DEBUG_READONLY_COW" 5143 # endif 5144 # ifdef PERL_DEBUG_READONLY_OPS 5145 " PERL_DEBUG_READONLY_OPS" 5146 # endif 5147 # ifdef PERL_GLOBAL_STRUCT 5148 " PERL_GLOBAL_STRUCT" 5149 # endif 5150 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 5151 " PERL_GLOBAL_STRUCT_PRIVATE" 5152 # endif 5153 # ifdef PERL_IMPLICIT_CONTEXT 5154 " PERL_IMPLICIT_CONTEXT" 5155 # endif 5156 # ifdef PERL_IMPLICIT_SYS 5157 " PERL_IMPLICIT_SYS" 5158 # endif 5159 # ifdef PERL_MICRO 5160 " PERL_MICRO" 5161 # endif 5162 # ifdef PERL_NEED_APPCTX 5163 " PERL_NEED_APPCTX" 5164 # endif 5165 # ifdef PERL_NEED_TIMESBASE 5166 " PERL_NEED_TIMESBASE" 5167 # endif 5168 # ifdef PERL_POISON 5169 " PERL_POISON" 5170 # endif 5171 # ifdef PERL_SAWAMPERSAND 5172 " PERL_SAWAMPERSAND" 5173 # endif 5174 # ifdef PERL_TRACK_MEMPOOL 5175 " PERL_TRACK_MEMPOOL" 5176 # endif 5177 # ifdef PERL_USES_PL_PIDSTATUS 5178 " PERL_USES_PL_PIDSTATUS" 5179 # endif 5180 # ifdef USE_64_BIT_ALL 5181 " USE_64_BIT_ALL" 5182 # endif 5183 # ifdef USE_64_BIT_INT 5184 " USE_64_BIT_INT" 5185 # endif 5186 # ifdef USE_IEEE 5187 " USE_IEEE" 5188 # endif 5189 # ifdef USE_ITHREADS 5190 " USE_ITHREADS" 5191 # endif 5192 # ifdef USE_LARGE_FILES 5193 " USE_LARGE_FILES" 5194 # endif 5195 # ifdef USE_LOCALE_COLLATE 5196 " USE_LOCALE_COLLATE" 5197 # endif 5198 # ifdef USE_LOCALE_NUMERIC 5199 " USE_LOCALE_NUMERIC" 5200 # endif 5201 # ifdef USE_LOCALE_TIME 5202 " USE_LOCALE_TIME" 5203 # endif 5204 # ifdef USE_LONG_DOUBLE 5205 " USE_LONG_DOUBLE" 5206 # endif 5207 # ifdef USE_PERLIO 5208 " USE_PERLIO" 5209 # endif 5210 # ifdef USE_QUADMATH 5211 " USE_QUADMATH" 5212 # endif 5213 # ifdef USE_REENTRANT_API 5214 " USE_REENTRANT_API" 5215 # endif 5216 # ifdef USE_SOCKS 5217 " USE_SOCKS" 5218 # endif 5219 # ifdef VMS_DO_SOCKETS 5220 " VMS_DO_SOCKETS" 5221 # endif 5222 # ifdef VMS_SHORTEN_LONG_SYMBOLS 5223 " VMS_SHORTEN_LONG_SYMBOLS" 5224 # endif 5225 # ifdef VMS_WE_ARE_CASE_SENSITIVE 5226 " VMS_SYMBOL_CASE_AS_IS" 5227 # endif 5228 ""; 5229 #else 5230 EXTCONST char PL_bincompat_options[]; 5231 #endif 5232 5233 #ifndef PERL_SET_PHASE 5234 # define PERL_SET_PHASE(new_phase) \ 5235 PERL_DTRACE_PROBE_PHASE(new_phase); \ 5236 PL_phase = new_phase; 5237 #endif 5238 5239 /* The interpreter phases. If these ever change, PL_phase_names right below will 5240 * need to be updated accordingly. */ 5241 enum perl_phase { 5242 PERL_PHASE_CONSTRUCT = 0, 5243 PERL_PHASE_START = 1, 5244 PERL_PHASE_CHECK = 2, 5245 PERL_PHASE_INIT = 3, 5246 PERL_PHASE_RUN = 4, 5247 PERL_PHASE_END = 5, 5248 PERL_PHASE_DESTRUCT = 6 5249 }; 5250 5251 #ifdef DOINIT 5252 EXTCONST char *const PL_phase_names[] = { 5253 "CONSTRUCT", 5254 "START", 5255 "CHECK", 5256 "INIT", 5257 "RUN", 5258 "END", 5259 "DESTRUCT" 5260 }; 5261 #else 5262 EXTCONST char *const PL_phase_names[]; 5263 #endif 5264 5265 #ifndef PERL_CORE 5266 /* Do not use this macro. It only exists for extensions that rely on PL_dirty 5267 * instead of using the newer PL_phase, which provides everything PL_dirty 5268 * provided, and more. */ 5269 # define PL_dirty cBOOL(PL_phase == PERL_PHASE_DESTRUCT) 5270 5271 # define PL_amagic_generation PL_na 5272 # define PL_encoding ((SV *)NULL) 5273 #endif /* !PERL_CORE */ 5274 5275 #define PL_hints PL_compiling.cop_hints 5276 #define PL_maxo MAXO 5277 5278 END_EXTERN_C 5279 5280 /*****************************************************************************/ 5281 /* This lexer/parser stuff is currently global since yacc is hard to reenter */ 5282 /*****************************************************************************/ 5283 /* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */ 5284 5285 #ifdef __Lynx__ 5286 /* LynxOS defines these in scsi.h which is included via ioctl.h */ 5287 #ifdef FORMAT 5288 #undef FORMAT 5289 #endif 5290 #ifdef SPACE 5291 #undef SPACE 5292 #endif 5293 #endif 5294 5295 #define LEX_NOTPARSING 11 /* borrowed from toke.c */ 5296 5297 typedef enum { 5298 XOPERATOR, 5299 XTERM, 5300 XREF, 5301 XSTATE, 5302 XBLOCK, 5303 XATTRBLOCK, /* next token should be an attribute or block */ 5304 XATTRTERM, /* next token should be an attribute, or block in a term */ 5305 XTERMBLOCK, 5306 XBLOCKTERM, 5307 XPOSTDEREF, 5308 XTERMORDORDOR /* evil hack */ 5309 /* update exp_name[] in toke.c if adding to this enum */ 5310 } expectation; 5311 5312 #define KEY_sigvar 0xFFFF /* fake keyword representing a signature var */ 5313 5314 /* Hints are now stored in a dedicated U32, so the bottom 8 bits are no longer 5315 special and there is no need for HINT_PRIVATE_MASK for COPs 5316 However, bitops store HINT_INTEGER in their op_private. 5317 5318 NOTE: The typical module using these has the bit value hard-coded, so don't 5319 blindly change the values of these. 5320 5321 If we run out of bits, the 2 locale ones could be combined. The PARTIAL one 5322 is for "use locale 'FOO'" which excludes some categories. It requires going 5323 to %^H to find out which are in and which are out. This could be extended 5324 for the normal case of a plain HINT_LOCALE, so that %^H would be used for 5325 any locale form. */ 5326 #define HINT_INTEGER 0x00000001 /* integer pragma */ 5327 #define HINT_STRICT_REFS 0x00000002 /* strict pragma */ 5328 #define HINT_LOCALE 0x00000004 /* locale pragma */ 5329 #define HINT_BYTES 0x00000008 /* bytes pragma */ 5330 #define HINT_LOCALE_PARTIAL 0x00000010 /* locale, but a subset of categories */ 5331 5332 #define HINT_EXPLICIT_STRICT_REFS 0x00000020 /* strict.pm */ 5333 #define HINT_EXPLICIT_STRICT_SUBS 0x00000040 /* strict.pm */ 5334 #define HINT_EXPLICIT_STRICT_VARS 0x00000080 /* strict.pm */ 5335 5336 #define HINT_BLOCK_SCOPE 0x00000100 5337 #define HINT_STRICT_SUBS 0x00000200 /* strict pragma */ 5338 #define HINT_STRICT_VARS 0x00000400 /* strict pragma */ 5339 #define HINT_UNI_8_BIT 0x00000800 /* unicode_strings feature */ 5340 5341 /* The HINT_NEW_* constants are used by the overload pragma */ 5342 #define HINT_NEW_INTEGER 0x00001000 5343 #define HINT_NEW_FLOAT 0x00002000 5344 #define HINT_NEW_BINARY 0x00004000 5345 #define HINT_NEW_STRING 0x00008000 5346 #define HINT_NEW_RE 0x00010000 5347 #define HINT_LOCALIZE_HH 0x00020000 /* %^H needs to be copied */ 5348 #define HINT_LEXICAL_IO_IN 0x00040000 /* ${^OPEN} is set for input */ 5349 #define HINT_LEXICAL_IO_OUT 0x00080000 /* ${^OPEN} is set for output */ 5350 5351 #define HINT_RE_TAINT 0x00100000 /* re pragma */ 5352 #define HINT_RE_EVAL 0x00200000 /* re pragma */ 5353 5354 #define HINT_FILETEST_ACCESS 0x00400000 /* filetest pragma */ 5355 #define HINT_UTF8 0x00800000 /* utf8 pragma */ 5356 5357 #define HINT_NO_AMAGIC 0x01000000 /* overloading pragma */ 5358 5359 #define HINT_RE_FLAGS 0x02000000 /* re '/xism' pragma */ 5360 5361 #define HINT_FEATURE_MASK 0x1c000000 /* 3 bits for feature bundles */ 5362 5363 /* Note: Used for HINT_M_VMSISH_*, 5364 currently defined by vms/vmsish.h: 5365 0x40000000 5366 0x80000000 5367 */ 5368 5369 /* The following are stored in $^H{sort}, not in PL_hints */ 5370 #define HINT_SORT_STABLE 0x00000100 /* sort styles */ 5371 #define HINT_SORT_UNSTABLE 0x00000200 5372 5373 /* flags for PL_sawampersand */ 5374 5375 #define SAWAMPERSAND_LEFT 1 /* saw $` */ 5376 #define SAWAMPERSAND_MIDDLE 2 /* saw $& */ 5377 #define SAWAMPERSAND_RIGHT 4 /* saw $' */ 5378 5379 #ifndef PERL_SAWAMPERSAND 5380 # define PL_sawampersand \ 5381 (SAWAMPERSAND_LEFT|SAWAMPERSAND_MIDDLE|SAWAMPERSAND_RIGHT) 5382 #endif 5383 5384 /* Used for debugvar magic */ 5385 #define DBVARMG_SINGLE 0 5386 #define DBVARMG_TRACE 1 5387 #define DBVARMG_SIGNAL 2 5388 #define DBVARMG_COUNT 3 5389 5390 #define PL_DBsingle_iv (PL_DBcontrol[DBVARMG_SINGLE]) 5391 #define PL_DBtrace_iv (PL_DBcontrol[DBVARMG_TRACE]) 5392 #define PL_DBsignal_iv (PL_DBcontrol[DBVARMG_SIGNAL]) 5393 5394 /* Various states of the input record separator SV (rs) */ 5395 #define RsSNARF(sv) (! SvOK(sv)) 5396 #define RsSIMPLE(sv) (SvOK(sv) && (! SvPOK(sv) || SvCUR(sv))) 5397 #define RsPARA(sv) (SvPOK(sv) && ! SvCUR(sv)) 5398 #define RsRECORD(sv) (SvROK(sv) && (SvIV(SvRV(sv)) > 0)) 5399 5400 /* A struct for keeping various DEBUGGING related stuff, 5401 * neatly packed. Currently only scratch variables for 5402 * constructing debug output are included. Needed always, 5403 * not just when DEBUGGING, though, because of the re extension. c*/ 5404 struct perl_debug_pad { 5405 SV pad[3]; 5406 }; 5407 5408 #define PERL_DEBUG_PAD(i) &(PL_debug_pad.pad[i]) 5409 #define PERL_DEBUG_PAD_ZERO(i) (SvPVX(PERL_DEBUG_PAD(i))[0] = 0, \ 5410 (((XPV*) SvANY(PERL_DEBUG_PAD(i)))->xpv_cur = 0), \ 5411 PERL_DEBUG_PAD(i)) 5412 5413 /* Enable variables which are pointers to functions */ 5414 typedef void (*peep_t)(pTHX_ OP* o); 5415 typedef regexp* (*regcomp_t) (pTHX_ char* exp, char* xend, PMOP* pm); 5416 typedef I32 (*regexec_t) (pTHX_ regexp* prog, char* stringarg, 5417 char* strend, char* strbeg, I32 minend, 5418 SV* screamer, void* data, U32 flags); 5419 typedef char* (*re_intuit_start_t) (pTHX_ regexp *prog, SV *sv, 5420 char *strpos, char *strend, 5421 U32 flags, 5422 re_scream_pos_data *d); 5423 typedef SV* (*re_intuit_string_t) (pTHX_ regexp *prog); 5424 typedef void (*regfree_t) (pTHX_ struct regexp* r); 5425 typedef regexp* (*regdupe_t) (pTHX_ const regexp* r, CLONE_PARAMS *param); 5426 typedef I32 (*re_fold_t)(const char *, char const *, I32); 5427 5428 typedef void (*DESTRUCTORFUNC_NOCONTEXT_t) (void*); 5429 typedef void (*DESTRUCTORFUNC_t) (pTHX_ void*); 5430 typedef void (*SVFUNC_t) (pTHX_ SV* const); 5431 typedef I32 (*SVCOMPARE_t) (pTHX_ SV* const, SV* const); 5432 typedef void (*XSINIT_t) (pTHX); 5433 typedef void (*ATEXIT_t) (pTHX_ void*); 5434 typedef void (*XSUBADDR_t) (pTHX_ CV *); 5435 5436 typedef OP* (*Perl_ppaddr_t)(pTHX); 5437 typedef OP* (*Perl_check_t) (pTHX_ OP*); 5438 typedef void(*Perl_ophook_t)(pTHX_ OP*); 5439 typedef int (*Perl_keyword_plugin_t)(pTHX_ char*, STRLEN, OP**); 5440 typedef void(*Perl_cpeep_t)(pTHX_ OP *, OP *); 5441 5442 typedef void(*globhook_t)(pTHX); 5443 5444 #define KEYWORD_PLUGIN_DECLINE 0 5445 #define KEYWORD_PLUGIN_STMT 1 5446 #define KEYWORD_PLUGIN_EXPR 2 5447 5448 /* Interpreter exitlist entry */ 5449 typedef struct exitlistentry { 5450 void (*fn) (pTHX_ void*); 5451 void *ptr; 5452 } PerlExitListEntry; 5453 5454 /* if you only have signal() and it resets on each signal, FAKE_PERSISTENT_SIGNAL_HANDLERS fixes */ 5455 /* These have to be before perlvars.h */ 5456 #if !defined(HAS_SIGACTION) && defined(VMS) 5457 # define FAKE_PERSISTENT_SIGNAL_HANDLERS 5458 #endif 5459 /* if we're doing kill() with sys$sigprc on VMS, FAKE_DEFAULT_SIGNAL_HANDLERS */ 5460 #if defined(KILL_BY_SIGPRC) 5461 # define FAKE_DEFAULT_SIGNAL_HANDLERS 5462 #endif 5463 5464 #if !defined(MULTIPLICITY) 5465 5466 struct interpreter { 5467 char broiled; 5468 }; 5469 5470 #else 5471 5472 /* If we have multiple interpreters define a struct 5473 holding variables which must be per-interpreter 5474 If we don't have threads anything that would have 5475 be per-thread is per-interpreter. 5476 */ 5477 5478 /* Set up PERLVAR macros for populating structs */ 5479 # define PERLVAR(prefix,var,type) type prefix##var; 5480 5481 /* 'var' is an array of length 'n' */ 5482 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5483 5484 /* initialize 'var' to init' */ 5485 # define PERLVARI(prefix,var,type,init) type prefix##var; 5486 5487 /* like PERLVARI, but make 'var' a const */ 5488 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5489 5490 struct interpreter { 5491 # include "intrpvar.h" 5492 }; 5493 5494 EXTCONST U16 PL_interp_size 5495 INIT(sizeof(struct interpreter)); 5496 5497 # define PERL_INTERPRETER_SIZE_UPTO_MEMBER(member) \ 5498 STRUCT_OFFSET(struct interpreter, member) + \ 5499 sizeof(((struct interpreter*)0)->member) 5500 5501 /* This will be useful for subsequent releases, because this has to be the 5502 same in your libperl as in main(), else you have a mismatch and must abort. 5503 */ 5504 EXTCONST U16 PL_interp_size_5_18_0 5505 INIT(PERL_INTERPRETER_SIZE_UPTO_MEMBER(PERL_LAST_5_18_0_INTERP_MEMBER)); 5506 5507 5508 # ifdef PERL_GLOBAL_STRUCT 5509 /* MULTIPLICITY is automatically defined when PERL_GLOBAL_STRUCT is defined, 5510 hence it's safe and sane to nest this within #ifdef MULTIPLICITY */ 5511 5512 struct perl_vars { 5513 # include "perlvars.h" 5514 }; 5515 5516 EXTCONST U16 PL_global_struct_size 5517 INIT(sizeof(struct perl_vars)); 5518 5519 # ifdef PERL_CORE 5520 # ifndef PERL_GLOBAL_STRUCT_PRIVATE 5521 EXT struct perl_vars PL_Vars; 5522 EXT struct perl_vars *PL_VarsPtr INIT(&PL_Vars); 5523 # undef PERL_GET_VARS 5524 # define PERL_GET_VARS() PL_VarsPtr 5525 # endif /* !PERL_GLOBAL_STRUCT_PRIVATE */ 5526 # else /* PERL_CORE */ 5527 # if !defined(__GNUC__) || !defined(WIN32) 5528 EXT 5529 # endif /* WIN32 */ 5530 struct perl_vars *PL_VarsPtr; 5531 # define PL_Vars (*((PL_VarsPtr) \ 5532 ? PL_VarsPtr : (PL_VarsPtr = Perl_GetVars(aTHX)))) 5533 # endif /* PERL_CORE */ 5534 # endif /* PERL_GLOBAL_STRUCT */ 5535 5536 /* Done with PERLVAR macros for now ... */ 5537 # undef PERLVAR 5538 # undef PERLVARA 5539 # undef PERLVARI 5540 # undef PERLVARIC 5541 5542 #endif /* MULTIPLICITY */ 5543 5544 struct tempsym; /* defined in pp_pack.c */ 5545 5546 #include "thread.h" 5547 #include "pp.h" 5548 5549 #undef PERL_CKDEF 5550 #undef PERL_PPDEF 5551 #define PERL_CKDEF(s) PERL_CALLCONV OP *s (pTHX_ OP *o); 5552 #define PERL_PPDEF(s) PERL_CALLCONV OP *s (pTHX); 5553 5554 #ifdef MYMALLOC 5555 # include "malloc_ctl.h" 5556 #endif 5557 5558 /* 5559 * This provides a layer of functions and macros to ensure extensions will 5560 * get to use the same RTL functions as the core. 5561 */ 5562 #if defined(WIN32) 5563 # include "win32iop.h" 5564 #endif 5565 5566 5567 #include "proto.h" 5568 5569 /* this has structure inits, so it cannot be included before here */ 5570 #include "opcode.h" 5571 5572 /* The following must follow proto.h as #defines mess up syntax */ 5573 5574 #if !defined(PERL_FOR_X2P) 5575 # include "embedvar.h" 5576 #endif 5577 5578 /* Now include all the 'global' variables 5579 * If we don't have threads or multiple interpreters 5580 * these include variables that would have been their struct-s 5581 */ 5582 5583 #define PERLVAR(prefix,var,type) EXT type PL_##var; 5584 #define PERLVARA(prefix,var,n,type) EXT type PL_##var[n]; 5585 #define PERLVARI(prefix,var,type,init) EXT type PL_##var INIT(init); 5586 #define PERLVARIC(prefix,var,type,init) EXTCONST type PL_##var INIT(init); 5587 5588 #if !defined(MULTIPLICITY) 5589 START_EXTERN_C 5590 # include "intrpvar.h" 5591 END_EXTERN_C 5592 # define PL_sv_yes (PL_sv_immortals[0]) 5593 # define PL_sv_undef (PL_sv_immortals[1]) 5594 # define PL_sv_no (PL_sv_immortals[2]) 5595 # define PL_sv_zero (PL_sv_immortals[3]) 5596 #endif 5597 5598 #ifdef PERL_CORE 5599 /* All core uses now exterminated. Ensure no zombies can return: */ 5600 # undef PL_na 5601 #endif 5602 5603 /* Now all the config stuff is setup we can include embed.h 5604 In particular, need the relevant *ish file included already, as it may 5605 define HAVE_INTERP_INTERN */ 5606 #include "embed.h" 5607 5608 #ifndef PERL_GLOBAL_STRUCT 5609 START_EXTERN_C 5610 5611 # include "perlvars.h" 5612 5613 END_EXTERN_C 5614 #endif 5615 5616 #undef PERLVAR 5617 #undef PERLVARA 5618 #undef PERLVARI 5619 #undef PERLVARIC 5620 5621 #if !defined(MULTIPLICITY) 5622 /* Set up PERLVAR macros for populating structs */ 5623 # define PERLVAR(prefix,var,type) type prefix##var; 5624 /* 'var' is an array of length 'n' */ 5625 # define PERLVARA(prefix,var,n,type) type prefix##var[n]; 5626 /* initialize 'var' to init' */ 5627 # define PERLVARI(prefix,var,type,init) type prefix##var; 5628 /* like PERLVARI, but make 'var' a const */ 5629 # define PERLVARIC(prefix,var,type,init) type prefix##var; 5630 5631 /* this is never instantiated, is it just used for sizeof(struct PerlHandShakeInterpreter) */ 5632 struct PerlHandShakeInterpreter { 5633 # include "intrpvar.h" 5634 }; 5635 # undef PERLVAR 5636 # undef PERLVARA 5637 # undef PERLVARI 5638 # undef PERLVARIC 5639 #endif 5640 5641 START_EXTERN_C 5642 5643 /* dummy variables that hold pointers to both runops functions, thus forcing 5644 * them *both* to get linked in (useful for Peek.xs, debugging etc) */ 5645 5646 EXTCONST runops_proc_t PL_runops_std 5647 INIT(Perl_runops_standard); 5648 EXTCONST runops_proc_t PL_runops_dbg 5649 INIT(Perl_runops_debug); 5650 5651 #define EXT_MGVTBL EXTCONST MGVTBL 5652 5653 #define PERL_MAGIC_READONLY_ACCEPTABLE 0x40 5654 #define PERL_MAGIC_VALUE_MAGIC 0x80 5655 #define PERL_MAGIC_VTABLE_MASK 0x3F 5656 #define PERL_MAGIC_TYPE_READONLY_ACCEPTABLE(t) \ 5657 (PL_magic_data[(U8)(t)] & PERL_MAGIC_READONLY_ACCEPTABLE) 5658 #define PERL_MAGIC_TYPE_IS_VALUE_MAGIC(t) \ 5659 (PL_magic_data[(U8)(t)] & PERL_MAGIC_VALUE_MAGIC) 5660 5661 #include "mg_vtable.h" 5662 5663 #ifdef DOINIT 5664 EXTCONST U8 PL_magic_data[256] = 5665 # ifdef PERL_MICRO 5666 # include "umg_data.h" 5667 # else 5668 # include "mg_data.h" 5669 # endif 5670 ; 5671 #else 5672 EXTCONST U8 PL_magic_data[256]; 5673 #endif 5674 5675 #ifdef DOINIT 5676 /* NL IV NV PV INV PI PN MG RX GV LV AV HV CV FM IO */ 5677 EXTCONST bool 5678 PL_valid_types_IVX[] = { 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5679 EXTCONST bool 5680 PL_valid_types_NVX[] = { 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0 }; 5681 EXTCONST bool 5682 PL_valid_types_PVX[] = { 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1 }; 5683 EXTCONST bool 5684 PL_valid_types_RV[] = { 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1 }; 5685 EXTCONST bool 5686 PL_valid_types_IV_set[] = { 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1 }; 5687 EXTCONST bool 5688 PL_valid_types_NV_set[] = { 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; 5689 5690 #else 5691 5692 EXTCONST bool PL_valid_types_IVX[]; 5693 EXTCONST bool PL_valid_types_NVX[]; 5694 EXTCONST bool PL_valid_types_PVX[]; 5695 EXTCONST bool PL_valid_types_RV[]; 5696 EXTCONST bool PL_valid_types_IV_set[]; 5697 EXTCONST bool PL_valid_types_NV_set[]; 5698 5699 #endif 5700 5701 /* In C99 we could use designated (named field) union initializers. 5702 * In C89 we need to initialize the member declared first. 5703 * In C++ we need extern C initializers. 5704 * 5705 * With the U8_NV version you will want to have inner braces, 5706 * while with the NV_U8 use just the NV. */ 5707 5708 #define INFNAN_U8_NV_DECL EXTCONST union { U8 u8[NVSIZE]; NV nv; } 5709 #define INFNAN_NV_U8_DECL EXTCONST union { NV nv; U8 u8[NVSIZE]; } 5710 5711 /* if these never got defined, they need defaults */ 5712 #ifndef PERL_SET_CONTEXT 5713 # define PERL_SET_CONTEXT(i) PERL_SET_INTERP(i) 5714 #endif 5715 5716 #ifndef PERL_GET_CONTEXT 5717 # define PERL_GET_CONTEXT PERL_GET_INTERP 5718 #endif 5719 5720 #ifndef PERL_GET_THX 5721 # define PERL_GET_THX ((void*)NULL) 5722 #endif 5723 5724 #ifndef PERL_SET_THX 5725 # define PERL_SET_THX(t) NOOP 5726 #endif 5727 5728 #ifndef EBCDIC 5729 5730 /* The tables below are adapted from 5731 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/, which requires this copyright 5732 * notice: 5733 5734 Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de> 5735 5736 Permission is hereby granted, free of charge, to any person obtaining a copy of 5737 this software and associated documentation files (the "Software"), to deal in 5738 the Software without restriction, including without limitation the rights to 5739 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 5740 of the Software, and to permit persons to whom the Software is furnished to do 5741 so, subject to the following conditions: 5742 5743 The above copyright notice and this permission notice shall be included in all 5744 copies or substantial portions of the Software. 5745 5746 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 5747 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 5748 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 5749 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 5750 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 5751 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 5752 SOFTWARE. 5753 5754 */ 5755 5756 # ifdef DOINIT 5757 # if 0 /* This is the original table given in 5758 https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ */ 5759 static U8 utf8d_C9[] = { 5760 /* The first part of the table maps bytes to character classes that 5761 * to reduce the size of the transition table and create bitmasks. */ 5762 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-1F*/ 5763 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-3F*/ 5764 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-5F*/ 5765 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /*-7F*/ 5766 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, 9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9, /*-9F*/ 5767 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7, /*-BF*/ 5768 8,8,2,2,2,2,2,2,2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2, /*-DF*/ 5769 10,3,3,3,3,3,3,3,3,3,3,3,3,4,3,3, 11,6,6,6,5,8,8,8,8,8,8,8,8,8,8,8, /*-FF*/ 5770 5771 /* The second part is a transition table that maps a combination 5772 * of a state of the automaton and a character class to a state. */ 5773 0,12,24,36,60,96,84,12,12,12,48,72, 12,12,12,12,12,12,12,12,12,12,12,12, 5774 12, 0,12,12,12,12,12, 0,12, 0,12,12, 12,24,12,12,12,12,12,24,12,24,12,12, 5775 12,12,12,12,12,12,12,24,12,12,12,12, 12,24,12,12,12,12,12,12,12,24,12,12, 5776 12,12,12,12,12,12,12,36,12,36,12,12, 12,36,12,12,12,12,12,36,12,36,12,12, 5777 12,36,12,12,12,12,12,12,12,12,12,12 5778 }; 5779 5780 # endif 5781 5782 /* This is a version of the above table customized for Perl that doesn't 5783 * exclude surrogates and accepts start bytes up through FD (FE on 64-bit 5784 * machines). The classes have been renumbered so that the patterns are more 5785 * evident in the table. The class numbers for start bytes are constrained so 5786 * that they can be used as a shift count for masking off the leading one bits. 5787 * It would make the code simpler if start byte FF could also be handled, but 5788 * doing so would mean adding nodes for each of continuation bytes 6-12 5789 * remaining, and two more nodes for overlong detection (a total of 9), and 5790 * there is room only for 4 more nodes unless we make the array U16 instead of 5791 * U8. 5792 * 5793 * The classes are 5794 * 00-7F 0 5795 * 80-81 7 Not legal immediately after start bytes E0 F0 F8 FC 5796 * FE 5797 * 82-83 8 Not legal immediately after start bytes E0 F0 F8 FC 5798 * 84-87 9 Not legal immediately after start bytes E0 F0 F8 5799 * 88-8F 10 Not legal immediately after start bytes E0 F0 5800 * 90-9F 11 Not legal immediately after start byte E0 5801 * A0-BF 12 5802 * C0,C1 1 5803 * C2-DF 2 5804 * E0 13 5805 * E1-EF 3 5806 * F0 14 5807 * F1-F7 4 5808 * F8 15 5809 * F9-FB 5 5810 * FC 16 5811 * FD 6 5812 * FE 17 (or 1 on 32-bit machines, since it overflows) 5813 * FF 1 5814 */ 5815 5816 EXTCONST U8 PL_extended_utf8_dfa_tab[] = { 5817 /* The first part of the table maps bytes to character classes to reduce 5818 * the size of the transition table and create bitmasks. */ 5819 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 5820 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 5821 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 5822 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 5823 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 5824 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 5825 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 5826 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 5827 7, 7, 8, 8, 9, 9, 9, 9,10,10,10,10,10,10,10,10, /*80-8F*/ 5828 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*90-9F*/ 5829 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*A0-AF*/ 5830 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12, /*B0-BF*/ 5831 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 5832 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 5833 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /*E0-EF*/ 5834 14, 4, 4, 4, 4, 4, 4, 4,15, 5, 5, 5,16, 6, /*F0-FD*/ 5835 # ifdef UV_IS_QUAD 5836 17, /*FE*/ 5837 # else 5838 1, /*FE*/ 5839 # endif 5840 1, /*FF*/ 5841 5842 /* The second part is a transition table that maps a combination 5843 * of a state of the automaton and a character class to a new state, called a 5844 * node. The nodes are: 5845 * N0 The initial state, and final accepting one. 5846 * N1 Any one continuation byte (80-BF) left. This is transitioned to 5847 * immediately when the start byte indicates a two-byte sequence 5848 * N2 Any two continuation bytes left. 5849 * N3 Any three continuation bytes left. 5850 * N4 Any four continuation bytes left. 5851 * N5 Any five continuation bytes left. 5852 * N6 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 5853 * the other continuations transition to N1 5854 * N7 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 5855 * the other continuations transition to N2 5856 * N8 Start byte is F8. Continuation bytes 80-87 are illegal (overlong); 5857 * the other continuations transition to N3 5858 * N9 Start byte is FC. Continuation bytes 80-83 are illegal (overlong); 5859 * the other continuations transition to N4 5860 * N10 Start byte is FE. Continuation bytes 80-81 are illegal (overlong); 5861 * the other continuations transition to N5 5862 * 1 Reject. All transitions not mentioned above (except the single 5863 * byte ones (as they are always legal) are to this state. 5864 */ 5865 5866 # define NUM_CLASSES 18 5867 # define N0 0 5868 # define N1 ((N0) + NUM_CLASSES) 5869 # define N2 ((N1) + NUM_CLASSES) 5870 # define N3 ((N2) + NUM_CLASSES) 5871 # define N4 ((N3) + NUM_CLASSES) 5872 # define N5 ((N4) + NUM_CLASSES) 5873 # define N6 ((N5) + NUM_CLASSES) 5874 # define N7 ((N6) + NUM_CLASSES) 5875 # define N8 ((N7) + NUM_CLASSES) 5876 # define N9 ((N8) + NUM_CLASSES) 5877 # define N10 ((N9) + NUM_CLASSES) 5878 5879 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 */ 5880 /*N0*/ 0, 1,N1,N2,N3,N4,N5, 1, 1, 1, 1, 1, 1,N6,N7,N8,N9,N10, 5881 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 5882 /*N2*/ 1, 1, 1, 1, 1, 1, 1,N1,N1,N1,N1,N1,N1, 1, 1, 1, 1, 1, 5883 /*N3*/ 1, 1, 1, 1, 1, 1, 1,N2,N2,N2,N2,N2,N2, 1, 1, 1, 1, 1, 5884 /*N4*/ 1, 1, 1, 1, 1, 1, 1,N3,N3,N3,N3,N3,N3, 1, 1, 1, 1, 1, 5885 /*N5*/ 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4,N4,N4, 1, 1, 1, 1, 1, 5886 5887 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N1, 1, 1, 1, 1, 1, 5888 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N2,N2, 1, 1, 1, 1, 1, 5889 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,N3,N3,N3, 1, 1, 1, 1, 1, 5890 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1,N4,N4,N4,N4, 1, 1, 1, 1, 1, 5891 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1,N5,N5,N5,N5,N5, 1, 1, 1, 1, 1, 5892 }; 5893 5894 /* And below is a version of the above table that accepts only strict UTF-8. 5895 * Hence no surrogates nor non-characters, nor non-Unicode. Thus, if the input 5896 * passes this dfa, it will be for a well-formed, non-problematic code point 5897 * that can be returned immediately. 5898 * 5899 * The "Implementation details" portion of 5900 * https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ shows how 5901 * the first portion of the table maps each possible byte into a character 5902 * class. And that the classes for those bytes which are start bytes have been 5903 * carefully chosen so they serve as well to be used as a shift value to mask 5904 * off the leading 1 bits of the start byte. Unfortunately the addition of 5905 * being able to distinguish non-characters makes this not fully work. This is 5906 * because, now, the start bytes E1-EF have to be broken into 3 classes instead 5907 * of 2: 5908 * 1) ED because it could be a surrogate 5909 * 2) EF because it could be a non-character 5910 * 3) the rest, which can never evaluate to a problematic code point. 5911 * 5912 * Each of E1-EF has three leading 1 bits, then a 0. That means we could use a 5913 * shift (and hence class number) of either 3 or 4 to get a mask that works. 5914 * But that only allows two categories, and we need three. khw made the 5915 * decision to therefore treat the ED start byte as an error, so that the dfa 5916 * drops out immediately for that. In the dfa, classes 3 and 4 are used to 5917 * distinguish EF vs the rest. Then special code is used to deal with ED, 5918 * that's executed only when the dfa drops out. The code points started by ED 5919 * are half surrogates, and half hangul syllables. This means that 2048 of 5920 * the hangul syllables (about 18%) take longer than all other non-problematic 5921 * code points to handle. 5922 * 5923 * The changes to handle non-characters requires the addition of states and 5924 * classes to the dfa. (See the section on "Mapping bytes to character 5925 * classes" in the linked-to document for further explanation of the original 5926 * dfa.) 5927 * 5928 * The classes are 5929 * 00-7F 0 5930 * 80-8E 9 5931 * 8F 10 5932 * 90-9E 11 5933 * 9F 12 5934 * A0-AE 13 5935 * AF 14 5936 * B0-B6 15 5937 * B7 16 5938 * B8-BD 15 5939 * BE 17 5940 * BF 18 5941 * C0,C1 1 5942 * C2-DF 2 5943 * E0 7 5944 * E1-EC 3 5945 * ED 1 5946 * EE 3 5947 * EF 4 5948 * F0 8 5949 * F1-F3 6 (6 bits can be stripped) 5950 * F4 5 (only 5 can be stripped) 5951 * F5-FF 1 5952 */ 5953 5954 EXTCONST U8 PL_strict_utf8_dfa_tab[] = { 5955 /* The first part of the table maps bytes to character classes to reduce 5956 * the size of the transition table and create bitmasks. */ 5957 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 5958 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 5959 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 5960 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 5961 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 5962 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 5963 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 5964 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 5965 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,10, /*80-8F*/ 5966 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,12, /*90-9F*/ 5967 13,13,13,13,13,13,13,13,13,13,13,13,13,13,13,14, /*A0-AF*/ 5968 15,15,15,15,15,15,15,16,15,15,15,15,15,15,17,18, /*B0-BF*/ 5969 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 5970 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 5971 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 3, 4, /*E0-EF*/ 5972 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/ 5973 5974 /* The second part is a transition table that maps a combination 5975 * of a state of the automaton and a character class to a new state, called a 5976 * node. The nodes are: 5977 * N0 The initial state, and final accepting one. 5978 * N1 Any one continuation byte (80-BF) left. This is transitioned to 5979 * immediately when the start byte indicates a two-byte sequence 5980 * N2 Any two continuation bytes left. 5981 * N3 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 5982 * the other continuations transition to state N1 5983 * N4 Start byte is EF. Continuation byte B7 transitions to N8; BF to N9; 5984 * the other continuations transitions to N1 5985 * N5 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 5986 * [9AB]F transition to N10; the other continuations to N2. 5987 * N6 Start byte is F[123]. Continuation bytes [89AB]F transition 5988 * to N10; the other continuations to N2. 5989 * N7 Start byte is F4. Continuation bytes 90-BF are illegal 5990 * (non-unicode); 8F transitions to N10; the other continuations to N2 5991 * N8 Initial sequence is EF B7. Continuation bytes 90-AF are illegal 5992 * (non-characters); the other continuations transition to N0. 5993 * N9 Initial sequence is EF BF. Continuation bytes BE and BF are illegal 5994 * (non-characters); the other continuations transition to N0. 5995 * N10 Initial sequence is one of: F0 [9-B]F; F[123] [8-B]F; or F4 8F. 5996 * Continuation byte BF transitions to N11; the other continuations to 5997 * N1 5998 * N11 Initial sequence is the two bytes given in N10 followed by BF. 5999 * Continuation bytes BE and BF are illegal (non-characters); the other 6000 * continuations transition to N0. 6001 * 1 Reject. All transitions not mentioned above (except the single 6002 * byte ones (as they are always legal) are to this state. 6003 */ 6004 6005 # undef N0 6006 # undef N1 6007 # undef N2 6008 # undef N3 6009 # undef N4 6010 # undef N5 6011 # undef N6 6012 # undef N7 6013 # undef N8 6014 # undef N9 6015 # undef NUM_CLASSES 6016 # define NUM_CLASSES 19 6017 # define N0 0 6018 # define N1 ((N0) + NUM_CLASSES) 6019 # define N2 ((N1) + NUM_CLASSES) 6020 # define N3 ((N2) + NUM_CLASSES) 6021 # define N4 ((N3) + NUM_CLASSES) 6022 # define N5 ((N4) + NUM_CLASSES) 6023 # define N6 ((N5) + NUM_CLASSES) 6024 # define N7 ((N6) + NUM_CLASSES) 6025 # define N8 ((N7) + NUM_CLASSES) 6026 # define N9 ((N8) + NUM_CLASSES) 6027 # define N10 ((N9) + NUM_CLASSES) 6028 # define N11 ((N10) + NUM_CLASSES) 6029 6030 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 */ 6031 /*N0*/ 0, 1, N1, N2, N4, N7, N6, N3, N5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 6032 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6033 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1, N1, 6034 6035 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, 6036 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N8, N1, N9, 6037 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2, N2, N2,N10, 6038 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, N2,N10, N2,N10, N2, N2, N2,N10, 6039 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2,N10, 1, 1, 1, 1, 1, 1, 1, 1, 6040 /*N8*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 6041 /*N9*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 6042 /*N10*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, N1, N1, N1, N1, N1, N1,N11, 6043 /*N11*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 6044 }; 6045 6046 /* And below is yet another version of the above tables that accepts only UTF-8 6047 * as defined by Corregidum #9. Hence no surrogates nor non-Unicode, but 6048 * it allows non-characters. This is isomorphic to the original table 6049 * in https://bjoern.hoehrmann.de/utf-8/decoder/dfa/ 6050 * 6051 * The classes are 6052 * 00-7F 0 6053 * 80-8F 9 6054 * 90-9F 10 6055 * A0-BF 11 6056 * C0,C1 1 6057 * C2-DF 2 6058 * E0 7 6059 * E1-EC 3 6060 * ED 4 6061 * EE-EF 3 6062 * F0 8 6063 * F1-F3 6 (6 bits can be stripped) 6064 * F4 5 (only 5 can be stripped) 6065 * F5-FF 1 6066 */ 6067 6068 EXTCONST U8 PL_c9_utf8_dfa_tab[] = { 6069 /* The first part of the table maps bytes to character classes to reduce 6070 * the size of the transition table and create bitmasks. */ 6071 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*00-0F*/ 6072 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*10-1F*/ 6073 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*20-2F*/ 6074 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*30-3F*/ 6075 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*40-4F*/ 6076 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*50-5F*/ 6077 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*60-6F*/ 6078 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*70-7F*/ 6079 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, /*80-8F*/ 6080 10,10,10,10,10,10,10,10,10,10,10,10,10,10,10,10, /*90-9F*/ 6081 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*A0-AF*/ 6082 11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, /*B0-BF*/ 6083 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*C0-CF*/ 6084 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, /*D0-DF*/ 6085 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 3, 3, /*E0-EF*/ 6086 8, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /*F0-FF*/ 6087 6088 /* The second part is a transition table that maps a combination 6089 * of a state of the automaton and a character class to a new state, called a 6090 * node. The nodes are: 6091 * N0 The initial state, and final accepting one. 6092 * N1 Any one continuation byte (80-BF) left. This is transitioned to 6093 * immediately when the start byte indicates a two-byte sequence 6094 * N2 Any two continuation bytes left. 6095 * N3 Any three continuation bytes left. 6096 * N4 Start byte is E0. Continuation bytes 80-9F are illegal (overlong); 6097 * the other continuations transition to state N1 6098 * N5 Start byte is ED. Continuation bytes A0-BF all lead to surrogates, 6099 * so are illegal. The other continuations transition to state N1. 6100 * N6 Start byte is F0. Continuation bytes 80-8F are illegal (overlong); 6101 * the other continuations transition to N2 6102 * N7 Start byte is F4. Continuation bytes 90-BF are illegal 6103 * (non-unicode); the other continuations transition to N2 6104 * 1 Reject. All transitions not mentioned above (except the single 6105 * byte ones (as they are always legal) are to this state. 6106 */ 6107 6108 # undef N0 6109 # undef N1 6110 # undef N2 6111 # undef N3 6112 # undef N4 6113 # undef N5 6114 # undef N6 6115 # undef N7 6116 # undef NUM_CLASSES 6117 # define NUM_CLASSES 12 6118 # define N0 0 6119 # define N1 ((N0) + NUM_CLASSES) 6120 # define N2 ((N1) + NUM_CLASSES) 6121 # define N3 ((N2) + NUM_CLASSES) 6122 # define N4 ((N3) + NUM_CLASSES) 6123 # define N5 ((N4) + NUM_CLASSES) 6124 # define N6 ((N5) + NUM_CLASSES) 6125 # define N7 ((N6) + NUM_CLASSES) 6126 6127 /*Class: 0 1 2 3 4 5 6 7 8 9 10 11 */ 6128 /*N0*/ 0, 1, N1, N2, N5, N7, N3, N4, N6, 1, 1, 1, 6129 /*N1*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 6130 /*N2*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, N1, 6131 /*N3*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, N2, 6132 6133 /*N4*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, 6134 /*N5*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N1, N1, 1, 6135 /*N6*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, N2, 6136 /*N7*/ 1, 1, 1, 1, 1, 1, 1, 1, 1, N2, 1, 1, 6137 }; 6138 6139 # else /* End of is DOINIT */ 6140 6141 EXTCONST U8 PL_extended_utf8_dfa_tab[]; 6142 EXTCONST U8 PL_strict_utf8_dfa_tab[]; 6143 EXTCONST U8 PL_c9_utf8_dfa_tab[]; 6144 6145 # endif 6146 #endif /* end of isn't EBCDIC */ 6147 6148 #ifndef PERL_NO_INLINE_FUNCTIONS 6149 /* Static inline funcs that depend on includes and declarations above. 6150 Some of these reference functions in the perl object files, and some 6151 compilers aren't smart enough to eliminate unused static inline 6152 functions, so including this file in source code can cause link errors 6153 even if the source code uses none of the functions. Hence including these 6154 can be suppressed by setting PERL_NO_INLINE_FUNCTIONS. Doing this will 6155 (obviously) result in unworkable XS code, but allows simple probing code 6156 to continue to work, because it permits tests to include the perl headers 6157 for definitions without creating a link dependency on the perl library 6158 (which may not exist yet). 6159 */ 6160 6161 # include "inline.h" 6162 #endif 6163 6164 #include "overload.h" 6165 6166 END_EXTERN_C 6167 6168 struct am_table { 6169 U8 flags; 6170 U8 fallback; 6171 U16 spare; 6172 U32 was_ok_sub; 6173 CV* table[NofAMmeth]; 6174 }; 6175 struct am_table_short { 6176 U8 flags; 6177 U8 fallback; 6178 U16 spare; 6179 U32 was_ok_sub; 6180 }; 6181 typedef struct am_table AMT; 6182 typedef struct am_table_short AMTS; 6183 6184 #define AMGfallNEVER 1 6185 #define AMGfallNO 2 6186 #define AMGfallYES 3 6187 6188 #define AMTf_AMAGIC 1 6189 #define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC) 6190 #define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC) 6191 #define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC) 6192 6193 #define StashHANDLER(stash,meth) gv_handler((stash),CAT2(meth,_amg)) 6194 6195 /* 6196 * some compilers like to redefine cos et alia as faster 6197 * (and less accurate?) versions called F_cos et cetera (Quidquid 6198 * latine dictum sit, altum viditur.) This trick collides with 6199 * the Perl overloading (amg). The following #defines fool both. 6200 */ 6201 6202 #ifdef _FASTMATH 6203 # ifdef atan2 6204 # define F_atan2_amg atan2_amg 6205 # endif 6206 # ifdef cos 6207 # define F_cos_amg cos_amg 6208 # endif 6209 # ifdef exp 6210 # define F_exp_amg exp_amg 6211 # endif 6212 # ifdef log 6213 # define F_log_amg log_amg 6214 # endif 6215 # ifdef pow 6216 # define F_pow_amg pow_amg 6217 # endif 6218 # ifdef sin 6219 # define F_sin_amg sin_amg 6220 # endif 6221 # ifdef sqrt 6222 # define F_sqrt_amg sqrt_amg 6223 # endif 6224 #endif /* _FASTMATH */ 6225 6226 #define PERLDB_ALL (PERLDBf_SUB | PERLDBf_LINE | \ 6227 PERLDBf_NOOPT | PERLDBf_INTER | \ 6228 PERLDBf_SUBLINE| PERLDBf_SINGLE| \ 6229 PERLDBf_NAMEEVAL| PERLDBf_NAMEANON | \ 6230 PERLDBf_SAVESRC) 6231 /* No _NONAME, _GOTO */ 6232 #define PERLDBf_SUB 0x01 /* Debug sub enter/exit */ 6233 #define PERLDBf_LINE 0x02 /* Keep line # */ 6234 #define PERLDBf_NOOPT 0x04 /* Switch off optimizations */ 6235 #define PERLDBf_INTER 0x08 /* Preserve more data for 6236 later inspections */ 6237 #define PERLDBf_SUBLINE 0x10 /* Keep subr source lines */ 6238 #define PERLDBf_SINGLE 0x20 /* Start with single-step on */ 6239 #define PERLDBf_NONAME 0x40 /* For _SUB: no name of the subr */ 6240 #define PERLDBf_GOTO 0x80 /* Report goto: call DB::goto */ 6241 #define PERLDBf_NAMEEVAL 0x100 /* Informative names for evals */ 6242 #define PERLDBf_NAMEANON 0x200 /* Informative names for anon subs */ 6243 #define PERLDBf_SAVESRC 0x400 /* Save source lines into @{"_<$filename"} */ 6244 #define PERLDBf_SAVESRC_NOSUBS 0x800 /* Including evals that generate no subroutines */ 6245 #define PERLDBf_SAVESRC_INVALID 0x1000 /* Save source that did not compile */ 6246 6247 #define PERLDB_SUB (PL_perldb & PERLDBf_SUB) 6248 #define PERLDB_LINE (PL_perldb & PERLDBf_LINE) 6249 #define PERLDB_NOOPT (PL_perldb & PERLDBf_NOOPT) 6250 #define PERLDB_INTER (PL_perldb & PERLDBf_INTER) 6251 #define PERLDB_SUBLINE (PL_perldb & PERLDBf_SUBLINE) 6252 #define PERLDB_SINGLE (PL_perldb & PERLDBf_SINGLE) 6253 #define PERLDB_SUB_NN (PL_perldb & PERLDBf_NONAME) 6254 #define PERLDB_GOTO (PL_perldb & PERLDBf_GOTO) 6255 #define PERLDB_NAMEEVAL (PL_perldb & PERLDBf_NAMEEVAL) 6256 #define PERLDB_NAMEANON (PL_perldb & PERLDBf_NAMEANON) 6257 #define PERLDB_SAVESRC (PL_perldb & PERLDBf_SAVESRC) 6258 #define PERLDB_SAVESRC_NOSUBS (PL_perldb & PERLDBf_SAVESRC_NOSUBS) 6259 #define PERLDB_SAVESRC_INVALID (PL_perldb & PERLDBf_SAVESRC_INVALID) 6260 6261 #define PERLDB_LINE_OR_SAVESRC (PL_perldb & (PERLDBf_LINE | PERLDBf_SAVESRC)) 6262 6263 #ifdef USE_ITHREADS 6264 # define KEYWORD_PLUGIN_MUTEX_INIT MUTEX_INIT(&PL_keyword_plugin_mutex) 6265 # define KEYWORD_PLUGIN_MUTEX_LOCK MUTEX_LOCK(&PL_keyword_plugin_mutex) 6266 # define KEYWORD_PLUGIN_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_keyword_plugin_mutex) 6267 # define KEYWORD_PLUGIN_MUTEX_TERM MUTEX_DESTROY(&PL_keyword_plugin_mutex) 6268 # define USER_PROP_MUTEX_INIT MUTEX_INIT(&PL_user_prop_mutex) 6269 # define USER_PROP_MUTEX_LOCK MUTEX_LOCK(&PL_user_prop_mutex) 6270 # define USER_PROP_MUTEX_UNLOCK MUTEX_UNLOCK(&PL_user_prop_mutex) 6271 # define USER_PROP_MUTEX_TERM MUTEX_DESTROY(&PL_user_prop_mutex) 6272 #else 6273 # define KEYWORD_PLUGIN_MUTEX_INIT NOOP 6274 # define KEYWORD_PLUGIN_MUTEX_LOCK NOOP 6275 # define KEYWORD_PLUGIN_MUTEX_UNLOCK NOOP 6276 # define KEYWORD_PLUGIN_MUTEX_TERM NOOP 6277 # define USER_PROP_MUTEX_INIT NOOP 6278 # define USER_PROP_MUTEX_LOCK NOOP 6279 # define USER_PROP_MUTEX_UNLOCK NOOP 6280 # define USER_PROP_MUTEX_TERM NOOP 6281 #endif 6282 6283 #ifdef USE_LOCALE /* These locale things are all subject to change */ 6284 6285 /* Returns TRUE if the plain locale pragma without a parameter is in effect. 6286 * */ 6287 # define IN_LOCALE_RUNTIME (PL_curcop \ 6288 && CopHINTS_get(PL_curcop) & HINT_LOCALE) 6289 6290 /* Returns TRUE if either form of the locale pragma is in effect */ 6291 # define IN_SOME_LOCALE_FORM_RUNTIME \ 6292 cBOOL(CopHINTS_get(PL_curcop) & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 6293 6294 # define IN_LOCALE_COMPILETIME cBOOL(PL_hints & HINT_LOCALE) 6295 # define IN_SOME_LOCALE_FORM_COMPILETIME \ 6296 cBOOL(PL_hints & (HINT_LOCALE|HINT_LOCALE_PARTIAL)) 6297 6298 /* 6299 =head1 Locale-related functions and macros 6300 6301 =for apidoc Amn|bool|IN_LOCALE 6302 6303 Evaluates to TRUE if the plain locale pragma without a parameter (S<C<use 6304 locale>>) is in effect. 6305 6306 =for apidoc Amn|bool|IN_LOCALE_COMPILETIME 6307 6308 Evaluates to TRUE if, when compiling a perl program (including an C<eval>) if 6309 the plain locale pragma without a parameter (S<C<use locale>>) is in effect. 6310 6311 =for apidoc Amn|bool|IN_LOCALE_RUNTIME 6312 6313 Evaluates to TRUE if, when executing a perl program (including an C<eval>) if 6314 the plain locale pragma without a parameter (S<C<use locale>>) is in effect. 6315 6316 =cut 6317 */ 6318 6319 # define IN_LOCALE \ 6320 (IN_PERL_COMPILETIME ? IN_LOCALE_COMPILETIME : IN_LOCALE_RUNTIME) 6321 # define IN_SOME_LOCALE_FORM \ 6322 (IN_PERL_COMPILETIME ? IN_SOME_LOCALE_FORM_COMPILETIME \ 6323 : IN_SOME_LOCALE_FORM_RUNTIME) 6324 6325 # define IN_LC_ALL_COMPILETIME IN_LOCALE_COMPILETIME 6326 # define IN_LC_ALL_RUNTIME IN_LOCALE_RUNTIME 6327 6328 # define IN_LC_PARTIAL_COMPILETIME cBOOL(PL_hints & HINT_LOCALE_PARTIAL) 6329 # define IN_LC_PARTIAL_RUNTIME \ 6330 (PL_curcop && CopHINTS_get(PL_curcop) & HINT_LOCALE_PARTIAL) 6331 6332 # define IN_LC_COMPILETIME(category) \ 6333 ( IN_LC_ALL_COMPILETIME \ 6334 || ( IN_LC_PARTIAL_COMPILETIME \ 6335 && Perl__is_in_locale_category(aTHX_ TRUE, (category)))) 6336 # define IN_LC_RUNTIME(category) \ 6337 (IN_LC_ALL_RUNTIME || (IN_LC_PARTIAL_RUNTIME \ 6338 && Perl__is_in_locale_category(aTHX_ FALSE, (category)))) 6339 # define IN_LC(category) \ 6340 (IN_LC_COMPILETIME(category) || IN_LC_RUNTIME(category)) 6341 6342 # if defined (PERL_CORE) || defined (PERL_IN_XSUB_RE) 6343 6344 /* This internal macro should be called from places that operate under 6345 * locale rules. If there is a problem with the current locale that 6346 * hasn't been raised yet, it will output a warning this time. Because 6347 * this will so rarely be true, there is no point to optimize for time; 6348 * instead it makes sense to minimize space used and do all the work in 6349 * the rarely called function */ 6350 # ifdef USE_LOCALE_CTYPE 6351 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE \ 6352 STMT_START { \ 6353 if (UNLIKELY(PL_warn_locale)) { \ 6354 Perl__warn_problematic_locale(); \ 6355 } \ 6356 } STMT_END 6357 # else 6358 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 6359 # endif 6360 6361 6362 /* These two internal macros are called when a warning should be raised, 6363 * and will do so if enabled. The first takes a single code point 6364 * argument; the 2nd, is a pointer to the first byte of the UTF-8 encoded 6365 * string, and an end position which it won't try to read past */ 6366 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(cp) \ 6367 STMT_START { \ 6368 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 6369 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 6370 "Wide character (U+%" UVXf ") in %s",\ 6371 (UV) cp, OP_DESC(PL_op)); \ 6372 } \ 6373 } STMT_END 6374 6375 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) \ 6376 STMT_START { /* Check if to warn before doing the conversion work */\ 6377 if (! PL_in_utf8_CTYPE_locale && ckWARN(WARN_LOCALE)) { \ 6378 UV cp = utf8_to_uvchr_buf((U8 *) (s), (U8 *) (send), NULL); \ 6379 Perl_warner(aTHX_ packWARN(WARN_LOCALE), \ 6380 "Wide character (U+%" UVXf ") in %s", \ 6381 (cp == 0) \ 6382 ? UNICODE_REPLACEMENT \ 6383 : (UV) cp, \ 6384 OP_DESC(PL_op)); \ 6385 } \ 6386 } STMT_END 6387 6388 # endif /* PERL_CORE or PERL_IN_XSUB_RE */ 6389 #else /* No locale usage */ 6390 # define IN_LOCALE_RUNTIME 0 6391 # define IN_SOME_LOCALE_FORM_RUNTIME 0 6392 # define IN_LOCALE_COMPILETIME 0 6393 # define IN_SOME_LOCALE_FORM_COMPILETIME 0 6394 # define IN_LOCALE 0 6395 # define IN_SOME_LOCALE_FORM 0 6396 # define IN_LC_ALL_COMPILETIME 0 6397 # define IN_LC_ALL_RUNTIME 0 6398 # define IN_LC_PARTIAL_COMPILETIME 0 6399 # define IN_LC_PARTIAL_RUNTIME 0 6400 # define IN_LC_COMPILETIME(category) 0 6401 # define IN_LC_RUNTIME(category) 0 6402 # define IN_LC(category) 0 6403 # define _CHECK_AND_WARN_PROBLEMATIC_LOCALE 6404 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_UTF8_MSG(s, send) 6405 # define _CHECK_AND_OUTPUT_WIDE_LOCALE_CP_MSG(c) 6406 #endif 6407 6408 6409 /* Locale/thread synchronization macros. These aren't needed if using 6410 * thread-safe locale operations, except if something is broken */ 6411 #if defined(USE_LOCALE) \ 6412 && defined(USE_ITHREADS) \ 6413 && (! defined(USE_THREAD_SAFE_LOCALE) || defined(TS_W32_BROKEN_LOCALECONV)) 6414 6415 /* We have a locale object holding the 'C' locale for Posix 2008 */ 6416 # ifndef USE_POSIX_2008_LOCALE 6417 # define _LOCALE_TERM_POSIX_2008 NOOP 6418 # else 6419 # define _LOCALE_TERM_POSIX_2008 \ 6420 STMT_START { \ 6421 if (PL_C_locale_obj) { \ 6422 /* Make sure we aren't using the locale \ 6423 * space we are about to free */ \ 6424 uselocale(LC_GLOBAL_LOCALE); \ 6425 freelocale(PL_C_locale_obj); \ 6426 PL_C_locale_obj = (locale_t) NULL; \ 6427 } \ 6428 } STMT_END 6429 # endif 6430 6431 /* This is used as a generic lock for locale operations. For example this is 6432 * used when calling nl_langinfo() so that another thread won't zap the 6433 * contents of its buffer before it gets saved; and it's called when changing 6434 * the locale of LC_MESSAGES. On some systems the latter can cause the 6435 * nl_langinfo buffer to be zapped under a race condition. 6436 * 6437 * If combined with LC_NUMERIC_LOCK, calls to this and its corresponding unlock 6438 * should be contained entirely within the locked portion of LC_NUMERIC. This 6439 * mutex should be used only in very short sections of code, while 6440 * LC_NUMERIC_LOCK may span more operations. By always following this 6441 * convention, deadlock should be impossible. But if necessary, the two 6442 * mutexes could be combined. 6443 * 6444 * Actually, the two macros just below with the '_V' suffixes are used in just 6445 * a few places where there is a broken localeconv(), but otherwise things are 6446 * thread safe, and hence don't need locking. Just below LOCALE_LOCK and 6447 * LOCALE_UNLOCK are defined in terms of these for use everywhere else */ 6448 # define LOCALE_LOCK_V \ 6449 STMT_START { \ 6450 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6451 "%s: %d: locking locale\n", __FILE__, __LINE__)); \ 6452 MUTEX_LOCK(&PL_locale_mutex); \ 6453 } STMT_END 6454 # define LOCALE_UNLOCK_V \ 6455 STMT_START { \ 6456 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6457 "%s: %d: unlocking locale\n", __FILE__, __LINE__)); \ 6458 MUTEX_UNLOCK(&PL_locale_mutex); \ 6459 } STMT_END 6460 6461 /* On windows, we just need the mutex for LOCALE_LOCK */ 6462 # ifdef TS_W32_BROKEN_LOCALECONV 6463 # define LOCALE_LOCK NOOP 6464 # define LOCALE_UNLOCK NOOP 6465 # define LOCALE_INIT MUTEX_INIT(&PL_locale_mutex); 6466 # define LOCALE_TERM MUTEX_DESTROY(&PL_locale_mutex) 6467 # define LC_NUMERIC_LOCK(cond) 6468 # define LC_NUMERIC_UNLOCK 6469 # else 6470 # define LOCALE_LOCK LOCALE_LOCK_V 6471 # define LOCALE_UNLOCK LOCALE_UNLOCK_V 6472 6473 /* We also need to lock LC_NUMERIC for non-windows (hence Posix 2008) 6474 * systems */ 6475 # define LOCALE_INIT STMT_START { \ 6476 MUTEX_INIT(&PL_locale_mutex); \ 6477 MUTEX_INIT(&PL_lc_numeric_mutex); \ 6478 } STMT_END 6479 6480 # define LOCALE_TERM STMT_START { \ 6481 MUTEX_DESTROY(&PL_locale_mutex); \ 6482 MUTEX_DESTROY(&PL_lc_numeric_mutex); \ 6483 _LOCALE_TERM_POSIX_2008; \ 6484 } STMT_END 6485 6486 /* This mutex is used to create critical sections where we want the 6487 * LC_NUMERIC locale to be locked into either the C (standard) locale, or 6488 * the underlying locale, so that other threads interrupting this one don't 6489 * change it to the wrong state before we've had a chance to complete our 6490 * operation. It can stay locked over an entire printf operation, for 6491 * example. And so is made distinct from the LOCALE_LOCK mutex. 6492 * 6493 * This simulates kind of a general semaphore. The current thread will 6494 * lock the mutex if the per-thread variable is zero, and then increments 6495 * that variable. Each corresponding UNLOCK decrements the variable until 6496 * it is 0, at which point it actually unlocks the mutex. Since the 6497 * variable is per-thread, there is no race with other threads. 6498 * 6499 * The single argument is a condition to test for, and if true, to panic, 6500 * as this would be an attempt to complement the LC_NUMERIC state, and 6501 * we're not supposed to because it's locked. 6502 * 6503 * Clang improperly gives warnings for this, if not silenced: 6504 * https://clang.llvm.org/docs/ThreadSafetyAnalysis.html#conditional-locks 6505 * */ 6506 # define LC_NUMERIC_LOCK(cond_to_panic_if_already_locked) \ 6507 CLANG_DIAG_IGNORE(-Wthread-safety) \ 6508 STMT_START { \ 6509 if (PL_lc_numeric_mutex_depth <= 0) { \ 6510 MUTEX_LOCK(&PL_lc_numeric_mutex); \ 6511 PL_lc_numeric_mutex_depth = 1; \ 6512 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6513 "%s: %d: locking lc_numeric; depth=1\n", \ 6514 __FILE__, __LINE__)); \ 6515 } \ 6516 else { \ 6517 PL_lc_numeric_mutex_depth++; \ 6518 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6519 "%s: %d: avoided lc_numeric_lock; new depth=%d\n", \ 6520 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 6521 if (cond_to_panic_if_already_locked) { \ 6522 Perl_croak_nocontext("panic: %s: %d: Trying to change" \ 6523 " LC_NUMERIC incompatibly", \ 6524 __FILE__, __LINE__); \ 6525 } \ 6526 } \ 6527 } STMT_END 6528 6529 # define LC_NUMERIC_UNLOCK \ 6530 STMT_START { \ 6531 if (PL_lc_numeric_mutex_depth <= 1) { \ 6532 MUTEX_UNLOCK(&PL_lc_numeric_mutex); \ 6533 PL_lc_numeric_mutex_depth = 0; \ 6534 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6535 "%s: %d: unlocking lc_numeric; depth=0\n", \ 6536 __FILE__, __LINE__)); \ 6537 } \ 6538 else { \ 6539 PL_lc_numeric_mutex_depth--; \ 6540 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6541 "%s: %d: avoided lc_numeric_unlock; new depth=%d\n",\ 6542 __FILE__, __LINE__, PL_lc_numeric_mutex_depth)); \ 6543 } \ 6544 } STMT_END \ 6545 CLANG_DIAG_RESTORE 6546 6547 # endif /* End of needs locking LC_NUMERIC */ 6548 #else /* Below is no locale sync needed */ 6549 # define LOCALE_INIT 6550 # define LOCALE_LOCK 6551 # define LOCALE_LOCK_V 6552 # define LOCALE_UNLOCK 6553 # define LOCALE_UNLOCK_V 6554 # define LC_NUMERIC_LOCK(cond) 6555 # define LC_NUMERIC_UNLOCK 6556 # define LOCALE_TERM 6557 #endif 6558 6559 #ifdef USE_LOCALE_NUMERIC 6560 6561 /* These macros are for toggling between the underlying locale (UNDERLYING or 6562 * LOCAL) and the C locale (STANDARD). (Actually we don't have to use the C 6563 * locale if the underlying locale is indistinguishable from it in the numeric 6564 * operations used by Perl, namely the decimal point, and even the thousands 6565 * separator.) 6566 6567 =head1 Locale-related functions and macros 6568 6569 =for apidoc Amn|void|DECLARATION_FOR_LC_NUMERIC_MANIPULATION 6570 6571 This macro should be used as a statement. It declares a private variable 6572 (whose name begins with an underscore) that is needed by the other macros in 6573 this section. Failing to include this correctly should lead to a syntax error. 6574 For compatibility with C89 C compilers it should be placed in a block before 6575 any executable statements. 6576 6577 =for apidoc Am|void|STORE_LC_NUMERIC_FORCE_TO_UNDERLYING 6578 6579 This is used by XS code that is C<LC_NUMERIC> locale-aware to force the 6580 locale for category C<LC_NUMERIC> to be what perl thinks is the current 6581 underlying locale. (The perl interpreter could be wrong about what the 6582 underlying locale actually is if some C or XS code has called the C library 6583 function L<setlocale(3)> behind its back; calling L</sync_locale> before calling 6584 this macro will update perl's records.) 6585 6586 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6587 declare at compile time a private variable used by this macro. This macro 6588 should be called as a single statement, not an expression, but with an empty 6589 argument list, like this: 6590 6591 { 6592 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6593 ... 6594 STORE_LC_NUMERIC_FORCE_TO_UNDERLYING(); 6595 ... 6596 RESTORE_LC_NUMERIC(); 6597 ... 6598 } 6599 6600 The private variable is used to save the current locale state, so 6601 that the requisite matching call to L</RESTORE_LC_NUMERIC> can restore it. 6602 6603 On threaded perls not operating with thread-safe functionality, this macro uses 6604 a mutex to force a critical section. Therefore the matching RESTORE should be 6605 close by, and guaranteed to be called. 6606 6607 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED 6608 6609 This is used to help wrap XS or C code that is C<LC_NUMERIC> locale-aware. 6610 This locale category is generally kept set to a locale where the decimal radix 6611 character is a dot, and the separator between groups of digits is empty. This 6612 is because most XS code that reads floating point numbers is expecting them to 6613 have this syntax. 6614 6615 This macro makes sure the current C<LC_NUMERIC> state is set properly, to be 6616 aware of locale if the call to the XS or C code from the Perl program is 6617 from within the scope of a S<C<use locale>>; or to ignore locale if the call is 6618 instead from outside such scope. 6619 6620 This macro is the start of wrapping the C or XS code; the wrap ending is done 6621 by calling the L</RESTORE_LC_NUMERIC> macro after the operation. Otherwise 6622 the state can be changed that will adversely affect other XS code. 6623 6624 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6625 declare at compile time a private variable used by this macro. This macro 6626 should be called as a single statement, not an expression, but with an empty 6627 argument list, like this: 6628 6629 { 6630 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6631 ... 6632 STORE_LC_NUMERIC_SET_TO_NEEDED(); 6633 ... 6634 RESTORE_LC_NUMERIC(); 6635 ... 6636 } 6637 6638 On threaded perls not operating with thread-safe functionality, this macro uses 6639 a mutex to force a critical section. Therefore the matching RESTORE should be 6640 close by, and guaranteed to be called; see L</WITH_LC_NUMERIC_SET_TO_NEEDED> 6641 for a more contained way to ensure that. 6642 6643 =for apidoc Am|void|STORE_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric 6644 6645 Same as L</STORE_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided 6646 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's 6647 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints> 6648 cannot have changed since the precalculation. 6649 6650 =for apidoc Am|void|RESTORE_LC_NUMERIC 6651 6652 This is used in conjunction with one of the macros 6653 L</STORE_LC_NUMERIC_SET_TO_NEEDED> 6654 and L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING> to properly restore the 6655 C<LC_NUMERIC> state. 6656 6657 A call to L</DECLARATION_FOR_LC_NUMERIC_MANIPULATION> must have been made to 6658 declare at compile time a private variable used by this macro and the two 6659 C<STORE> ones. This macro should be called as a single statement, not an 6660 expression, but with an empty argument list, like this: 6661 6662 { 6663 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6664 ... 6665 RESTORE_LC_NUMERIC(); 6666 ... 6667 } 6668 6669 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED|block 6670 6671 This macro invokes the supplied statement or block within the context 6672 of a L</STORE_LC_NUMERIC_SET_TO_NEEDED> .. L</RESTORE_LC_NUMERIC> pair 6673 if required, so eg: 6674 6675 WITH_LC_NUMERIC_SET_TO_NEEDED( 6676 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis) 6677 ); 6678 6679 is equivalent to: 6680 6681 { 6682 #ifdef USE_LOCALE_NUMERIC 6683 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; 6684 STORE_LC_NUMERIC_SET_TO_NEEDED(); 6685 #endif 6686 SNPRINTF_G(fv, ebuf, sizeof(ebuf), precis); 6687 #ifdef USE_LOCALE_NUMERIC 6688 RESTORE_LC_NUMERIC(); 6689 #endif 6690 } 6691 6692 =for apidoc Am|void|WITH_LC_NUMERIC_SET_TO_NEEDED_IN|bool in_lc_numeric|block 6693 6694 Same as L</WITH_LC_NUMERIC_SET_TO_NEEDED> with in_lc_numeric provided 6695 as the precalculated value of C<IN_LC(LC_NUMERIC)>. It is the caller's 6696 responsibility to ensure that the status of C<PL_compiling> and C<PL_hints> 6697 cannot have changed since the precalculation. 6698 6699 =cut 6700 6701 */ 6702 6703 /* If the underlying numeric locale has a non-dot decimal point or has a 6704 * non-empty floating point thousands separator, the current locale is instead 6705 * generally kept in the C locale instead of that underlying locale. The 6706 * current status is known by looking at two words. One is non-zero if the 6707 * current numeric locale is the standard C/POSIX one or is indistinguishable 6708 * from C. The other is non-zero if the current locale is the underlying 6709 * locale. Both can be non-zero if, as often happens, the underlying locale is 6710 * C or indistinguishable from it. 6711 * 6712 * khw believes the reason for the variables instead of the bits in a single 6713 * word is to avoid having to have masking instructions. */ 6714 6715 # define _NOT_IN_NUMERIC_STANDARD (! PL_numeric_standard) 6716 6717 /* We can lock the category to stay in the C locale, making requests to the 6718 * contrary be noops, in the dynamic scope by setting PL_numeric_standard to 2. 6719 * */ 6720 # define _NOT_IN_NUMERIC_UNDERLYING \ 6721 (! PL_numeric_underlying && PL_numeric_standard < 2) 6722 6723 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION \ 6724 void (*_restore_LC_NUMERIC_function)(pTHX) = NULL 6725 6726 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in) \ 6727 STMT_START { \ 6728 bool _in_lc_numeric = (in); \ 6729 LC_NUMERIC_LOCK( \ 6730 ( ( _in_lc_numeric && _NOT_IN_NUMERIC_UNDERLYING) \ 6731 || (! _in_lc_numeric && _NOT_IN_NUMERIC_STANDARD))); \ 6732 if (_in_lc_numeric) { \ 6733 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6734 Perl_set_numeric_underlying(aTHX); \ 6735 _restore_LC_NUMERIC_function \ 6736 = &Perl_set_numeric_standard; \ 6737 } \ 6738 } \ 6739 else { \ 6740 if (_NOT_IN_NUMERIC_STANDARD) { \ 6741 Perl_set_numeric_standard(aTHX); \ 6742 _restore_LC_NUMERIC_function \ 6743 = &Perl_set_numeric_underlying; \ 6744 } \ 6745 } \ 6746 } STMT_END 6747 6748 # define STORE_LC_NUMERIC_SET_TO_NEEDED() \ 6749 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC)) 6750 6751 # define RESTORE_LC_NUMERIC() \ 6752 STMT_START { \ 6753 if (_restore_LC_NUMERIC_function) { \ 6754 _restore_LC_NUMERIC_function(aTHX); \ 6755 } \ 6756 LC_NUMERIC_UNLOCK; \ 6757 } STMT_END 6758 6759 /* The next two macros set unconditionally. These should be rarely used, and 6760 * only after being sure that this is what is needed */ 6761 # define SET_NUMERIC_STANDARD() \ 6762 STMT_START { \ 6763 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6764 "%s: %d: lc_numeric standard=%d\n", \ 6765 __FILE__, __LINE__, PL_numeric_standard)); \ 6766 Perl_set_numeric_standard(aTHX); \ 6767 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6768 "%s: %d: lc_numeric standard=%d\n", \ 6769 __FILE__, __LINE__, PL_numeric_standard)); \ 6770 } STMT_END 6771 6772 # define SET_NUMERIC_UNDERLYING() \ 6773 STMT_START { \ 6774 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6775 Perl_set_numeric_underlying(aTHX); \ 6776 } \ 6777 } STMT_END 6778 6779 /* The rest of these LC_NUMERIC macros toggle to one or the other state, with 6780 * the RESTORE_foo ones called to switch back, but only if need be */ 6781 # define STORE_LC_NUMERIC_SET_STANDARD() \ 6782 STMT_START { \ 6783 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_STANDARD); \ 6784 if (_NOT_IN_NUMERIC_STANDARD) { \ 6785 _restore_LC_NUMERIC_function = &Perl_set_numeric_underlying;\ 6786 Perl_set_numeric_standard(aTHX); \ 6787 } \ 6788 } STMT_END 6789 6790 /* Rarely, we want to change to the underlying locale even outside of 'use 6791 * locale'. This is principally in the POSIX:: functions */ 6792 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() \ 6793 STMT_START { \ 6794 LC_NUMERIC_LOCK(_NOT_IN_NUMERIC_UNDERLYING); \ 6795 if (_NOT_IN_NUMERIC_UNDERLYING) { \ 6796 Perl_set_numeric_underlying(aTHX); \ 6797 _restore_LC_NUMERIC_function = &Perl_set_numeric_standard; \ 6798 } \ 6799 } STMT_END 6800 6801 /* Lock/unlock to the C locale until unlock is called. This needs to be 6802 * recursively callable. [perl #128207] */ 6803 # define LOCK_LC_NUMERIC_STANDARD() \ 6804 STMT_START { \ 6805 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6806 "%s: %d: lock lc_numeric_standard: new depth=%d\n", \ 6807 __FILE__, __LINE__, PL_numeric_standard + 1)); \ 6808 __ASSERT_(PL_numeric_standard) \ 6809 PL_numeric_standard++; \ 6810 } STMT_END 6811 6812 # define UNLOCK_LC_NUMERIC_STANDARD() \ 6813 STMT_START { \ 6814 if (PL_numeric_standard > 1) { \ 6815 PL_numeric_standard--; \ 6816 } \ 6817 else { \ 6818 assert(0); \ 6819 } \ 6820 DEBUG_Lv(PerlIO_printf(Perl_debug_log, \ 6821 "%s: %d: lc_numeric_standard decrement lock, new depth=%d\n", \ 6822 __FILE__, __LINE__, PL_numeric_standard)); \ 6823 } STMT_END 6824 6825 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \ 6826 STMT_START { \ 6827 DECLARATION_FOR_LC_NUMERIC_MANIPULATION; \ 6828 STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric); \ 6829 block; \ 6830 RESTORE_LC_NUMERIC(); \ 6831 } STMT_END; 6832 6833 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \ 6834 WITH_LC_NUMERIC_SET_TO_NEEDED_IN(IN_LC(LC_NUMERIC), block) 6835 6836 #else /* !USE_LOCALE_NUMERIC */ 6837 6838 # define SET_NUMERIC_STANDARD() 6839 # define SET_NUMERIC_UNDERLYING() 6840 # define IS_NUMERIC_RADIX(a, b) (0) 6841 # define DECLARATION_FOR_LC_NUMERIC_MANIPULATION dNOOP 6842 # define STORE_LC_NUMERIC_SET_STANDARD() 6843 # define STORE_LC_NUMERIC_FORCE_TO_UNDERLYING() 6844 # define STORE_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric) 6845 # define STORE_LC_NUMERIC_SET_TO_NEEDED() 6846 # define RESTORE_LC_NUMERIC() 6847 # define LOCK_LC_NUMERIC_STANDARD() 6848 # define UNLOCK_LC_NUMERIC_STANDARD() 6849 # define WITH_LC_NUMERIC_SET_TO_NEEDED_IN(in_lc_numeric, block) \ 6850 STMT_START { block; } STMT_END 6851 # define WITH_LC_NUMERIC_SET_TO_NEEDED(block) \ 6852 STMT_START { block; } STMT_END 6853 6854 #endif /* !USE_LOCALE_NUMERIC */ 6855 6856 #define Atof my_atof 6857 6858 /* 6859 6860 =head1 Numeric functions 6861 6862 =for apidoc AmTR|NV|Strtod|NN const char * const s|NULLOK char ** e 6863 6864 This is a synonym for L</my_strtod>. 6865 6866 =for apidoc AmTR|NV|Strtol|NN const char * const s|NULLOK char ** e|int base 6867 6868 Platform and configuration independent C<strtol>. This expands to the 6869 appropriate C<strotol>-like function based on the platform and F<Configure> 6870 options>. For example it could expand to C<strtoll> or C<strtoq> instead of 6871 C<strtol>. 6872 6873 =for apidoc AmTR|NV|Strtoul|NN const char * const s|NULLOK char ** e|int base 6874 6875 Platform and configuration independent C<strtoul>. This expands to the 6876 appropriate C<strotoul>-like function based on the platform and F<Configure> 6877 options>. For example it could expand to C<strtoull> or C<strtouq> instead of 6878 C<strtoul>. 6879 6880 =cut 6881 6882 */ 6883 6884 #define Strtod my_strtod 6885 6886 #if defined(HAS_STRTOD) \ 6887 || defined(USE_QUADMATH) \ 6888 || (defined(HAS_STRTOLD) && defined(HAS_LONG_DOUBLE) \ 6889 && defined(USE_LONG_DOUBLE)) 6890 # define Perl_strtod Strtod 6891 #endif 6892 6893 #if !defined(Strtol) && defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && \ 6894 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6895 # ifdef __hpux 6896 # define strtoll __strtoll /* secret handshake */ 6897 # endif 6898 # if defined(WIN64) && defined(_MSC_VER) 6899 # define strtoll _strtoi64 /* secret handshake */ 6900 # endif 6901 # if !defined(Strtol) && defined(HAS_STRTOLL) 6902 # define Strtol strtoll 6903 # endif 6904 # if !defined(Strtol) && defined(HAS_STRTOQ) 6905 # define Strtol strtoq 6906 # endif 6907 /* is there atoq() anywhere? */ 6908 #endif 6909 #if !defined(Strtol) && defined(HAS_STRTOL) 6910 # define Strtol strtol 6911 #endif 6912 #ifndef Atol 6913 /* It would be more fashionable to use Strtol() to define atol() 6914 * (as is done for Atoul(), see below) but for backward compatibility 6915 * we just assume atol(). */ 6916 # if defined(USE_64_BIT_INT) && defined(IV_IS_QUAD) && defined(HAS_ATOLL) && \ 6917 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6918 # ifdef WIN64 6919 # define atoll _atoi64 /* secret handshake */ 6920 # endif 6921 # define Atol atoll 6922 # else 6923 # define Atol atol 6924 # endif 6925 #endif 6926 6927 #if !defined(Strtoul) && defined(USE_64_BIT_INT) && defined(UV_IS_QUAD) && \ 6928 (QUADKIND == QUAD_IS_LONG_LONG || QUADKIND == QUAD_IS___INT64) 6929 # ifdef __hpux 6930 # define strtoull __strtoull /* secret handshake */ 6931 # endif 6932 # if defined(WIN64) && defined(_MSC_VER) 6933 # define strtoull _strtoui64 /* secret handshake */ 6934 # endif 6935 # if !defined(Strtoul) && defined(HAS_STRTOULL) 6936 # define Strtoul strtoull 6937 # endif 6938 # if !defined(Strtoul) && defined(HAS_STRTOUQ) 6939 # define Strtoul strtouq 6940 # endif 6941 /* is there atouq() anywhere? */ 6942 #endif 6943 #if !defined(Strtoul) && defined(HAS_STRTOUL) 6944 # define Strtoul strtoul 6945 #endif 6946 #if !defined(Strtoul) && defined(HAS_STRTOL) /* Last resort. */ 6947 # define Strtoul(s, e, b) strchr((s), '-') ? ULONG_MAX : (unsigned long)strtol((s), (e), (b)) 6948 #endif 6949 #ifndef Atoul 6950 # define Atoul(s) Strtoul(s, NULL, 10) 6951 #endif 6952 6953 #define grok_bin(s,lp,fp,rp) \ 6954 grok_bin_oct_hex(s, lp, fp, rp, 1, _CC_BINDIGIT, 'b') 6955 #define grok_oct(s,lp,fp,rp) \ 6956 (*(fp) |= PERL_SCAN_DISALLOW_PREFIX, \ 6957 grok_bin_oct_hex(s, lp, fp, rp, 3, _CC_OCTDIGIT, '\0')) 6958 #define grok_hex(s,lp,fp,rp) \ 6959 grok_bin_oct_hex(s, lp, fp, rp, 4, _CC_XDIGIT, 'x') 6960 6961 #ifndef PERL_SCRIPT_MODE 6962 #define PERL_SCRIPT_MODE "r" 6963 #endif 6964 6965 /* not used. Kept as a NOOP for backcompat */ 6966 #define PERL_STACK_OVERFLOW_CHECK() NOOP 6967 6968 /* 6969 * Some nonpreemptive operating systems find it convenient to 6970 * check for asynchronous conditions after each op execution. 6971 * Keep this check simple, or it may slow down execution 6972 * massively. 6973 */ 6974 6975 #ifndef PERL_MICRO 6976 # ifndef PERL_ASYNC_CHECK 6977 # define PERL_ASYNC_CHECK() if (UNLIKELY(PL_sig_pending)) PL_signalhook(aTHX) 6978 # endif 6979 #endif 6980 6981 #ifndef PERL_ASYNC_CHECK 6982 # define PERL_ASYNC_CHECK() NOOP 6983 #endif 6984 6985 /* 6986 * On some operating systems, a memory allocation may succeed, 6987 * but put the process too close to the system's comfort limit. 6988 * In this case, PERL_ALLOC_CHECK frees the pointer and sets 6989 * it to NULL. 6990 */ 6991 #ifndef PERL_ALLOC_CHECK 6992 #define PERL_ALLOC_CHECK(p) NOOP 6993 #endif 6994 6995 #ifdef HAS_SEM 6996 # include <sys/ipc.h> 6997 # include <sys/sem.h> 6998 # ifndef HAS_UNION_SEMUN /* Provide the union semun. */ 6999 union semun { 7000 int val; 7001 struct semid_ds *buf; 7002 unsigned short *array; 7003 }; 7004 # endif 7005 # ifdef USE_SEMCTL_SEMUN 7006 # ifdef IRIX32_SEMUN_BROKEN_BY_GCC 7007 union gccbug_semun { 7008 int val; 7009 struct semid_ds *buf; 7010 unsigned short *array; 7011 char __dummy[5]; 7012 }; 7013 # define semun gccbug_semun 7014 # endif 7015 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun) 7016 # elif defined(USE_SEMCTL_SEMID_DS) 7017 # ifdef EXTRA_F_IN_SEMUN_BUF 7018 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buff) 7019 # else 7020 # define Semctl(id, num, cmd, semun) semctl(id, num, cmd, semun.buf) 7021 # endif 7022 # endif 7023 #endif 7024 7025 /* 7026 * Boilerplate macros for initializing and accessing interpreter-local 7027 * data from C. All statics in extensions should be reworked to use 7028 * this, if you want to make the extension thread-safe. See 7029 * ext/XS/APItest/APItest.xs for an example of the use of these macros, 7030 * and perlxs.pod for more. 7031 * 7032 * Code that uses these macros is responsible for the following: 7033 * 1. #define MY_CXT_KEY to a unique string, e.g. 7034 * "DynaLoader::_guts" XS_VERSION 7035 * XXX in the current implementation, this string is ignored. 7036 * 2. Declare a typedef named my_cxt_t that is a structure that contains 7037 * all the data that needs to be interpreter-local. 7038 * 3. Use the START_MY_CXT macro after the declaration of my_cxt_t. 7039 * 4. Use the MY_CXT_INIT macro such that it is called exactly once 7040 * (typically put in the BOOT: section). 7041 * 5. Use the members of the my_cxt_t structure everywhere as 7042 * MY_CXT.member. 7043 * 6. Use the dMY_CXT macro (a declaration) in all the functions that 7044 * access MY_CXT. 7045 */ 7046 7047 #if defined(PERL_IMPLICIT_CONTEXT) 7048 7049 /* START_MY_CXT must appear in all extensions that define a my_cxt_t structure, 7050 * right after the definition (i.e. at file scope). The non-threads 7051 * case below uses it to declare the data as static. */ 7052 # ifdef PERL_GLOBAL_STRUCT_PRIVATE 7053 # define START_MY_CXT 7054 # define MY_CXT_INDEX Perl_my_cxt_index(aTHX_ MY_CXT_KEY) 7055 # define MY_CXT_INIT_ARG MY_CXT_KEY 7056 # else 7057 # define START_MY_CXT static int my_cxt_index = -1; 7058 # define MY_CXT_INDEX my_cxt_index 7059 # define MY_CXT_INIT_ARG &my_cxt_index 7060 # endif /* #ifdef PERL_GLOBAL_STRUCT_PRIVATE */ 7061 7062 /* Creates and zeroes the per-interpreter data. 7063 * (We allocate my_cxtp in a Perl SV so that it will be released when 7064 * the interpreter goes away.) */ 7065 # define MY_CXT_INIT \ 7066 my_cxt_t *my_cxtp = \ 7067 (my_cxt_t*)Perl_my_cxt_init(aTHX_ MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 7068 PERL_UNUSED_VAR(my_cxtp) 7069 # define MY_CXT_INIT_INTERP(my_perl) \ 7070 my_cxt_t *my_cxtp = \ 7071 (my_cxt_t*)Perl_my_cxt_init(my_perl, MY_CXT_INIT_ARG, sizeof(my_cxt_t)); \ 7072 PERL_UNUSED_VAR(my_cxtp) 7073 7074 /* This declaration should be used within all functions that use the 7075 * interpreter-local data. */ 7076 # define dMY_CXT \ 7077 my_cxt_t *my_cxtp = (my_cxt_t *)PL_my_cxt_list[MY_CXT_INDEX] 7078 # define dMY_CXT_INTERP(my_perl) \ 7079 my_cxt_t *my_cxtp = (my_cxt_t *)(my_perl)->Imy_cxt_list[MY_CXT_INDEX] 7080 7081 /* Clones the per-interpreter data. */ 7082 # define MY_CXT_CLONE \ 7083 my_cxt_t *my_cxtp = (my_cxt_t*)SvPVX(newSV(sizeof(my_cxt_t)-1));\ 7084 void * old_my_cxtp = PL_my_cxt_list[MY_CXT_INDEX]; \ 7085 PL_my_cxt_list[MY_CXT_INDEX] = my_cxtp; \ 7086 Copy(old_my_cxtp, my_cxtp, 1, my_cxt_t); 7087 7088 7089 7090 /* This macro must be used to access members of the my_cxt_t structure. 7091 * e.g. MY_CXT.some_data */ 7092 # define MY_CXT (*my_cxtp) 7093 7094 /* Judicious use of these macros can reduce the number of times dMY_CXT 7095 * is used. Use is similar to pTHX, aTHX etc. */ 7096 # define pMY_CXT my_cxt_t *my_cxtp 7097 # define pMY_CXT_ pMY_CXT, 7098 # define _pMY_CXT ,pMY_CXT 7099 # define aMY_CXT my_cxtp 7100 # define aMY_CXT_ aMY_CXT, 7101 # define _aMY_CXT ,aMY_CXT 7102 7103 #else /* PERL_IMPLICIT_CONTEXT */ 7104 7105 # define START_MY_CXT static my_cxt_t my_cxt; 7106 # define dMY_CXT_SV dNOOP 7107 # define dMY_CXT dNOOP 7108 # define dMY_CXT_INTERP(my_perl) dNOOP 7109 # define MY_CXT_INIT NOOP 7110 # define MY_CXT_CLONE NOOP 7111 # define MY_CXT my_cxt 7112 7113 # define pMY_CXT void 7114 # define pMY_CXT_ 7115 # define _pMY_CXT 7116 # define aMY_CXT 7117 # define aMY_CXT_ 7118 # define _aMY_CXT 7119 7120 #endif /* !defined(PERL_IMPLICIT_CONTEXT) */ 7121 7122 #ifdef I_FCNTL 7123 # include <fcntl.h> 7124 #endif 7125 7126 #ifdef __Lynx__ 7127 # include <fcntl.h> 7128 #endif 7129 7130 #ifdef __amigaos4__ 7131 # undef FD_CLOEXEC /* a lie in AmigaOS */ 7132 #endif 7133 7134 #ifdef I_SYS_FILE 7135 # include <sys/file.h> 7136 #endif 7137 7138 #if defined(HAS_FLOCK) && !defined(HAS_FLOCK_PROTO) 7139 EXTERN_C int flock(int fd, int op); 7140 #endif 7141 7142 #ifndef O_RDONLY 7143 /* Assume UNIX defaults */ 7144 # define O_RDONLY 0000 7145 # define O_WRONLY 0001 7146 # define O_RDWR 0002 7147 # define O_CREAT 0100 7148 #endif 7149 7150 #ifndef O_BINARY 7151 # define O_BINARY 0 7152 #endif 7153 7154 #ifndef O_TEXT 7155 # define O_TEXT 0 7156 #endif 7157 7158 #if O_TEXT != O_BINARY 7159 /* If you have different O_TEXT and O_BINARY and you are a CRLF shop, 7160 * that is, you are somehow DOSish. */ 7161 # if defined(__HAIKU__) || defined(__VOS__) || defined(__CYGWIN__) 7162 /* Haiku has O_TEXT != O_BINARY but O_TEXT and O_BINARY have no effect; 7163 * Haiku is always UNIXoid (LF), not DOSish (CRLF). */ 7164 /* VOS has O_TEXT != O_BINARY, and they have effect, 7165 * but VOS always uses LF, never CRLF. */ 7166 /* If you have O_TEXT different from your O_BINARY but you still are 7167 * not a CRLF shop. */ 7168 # undef PERLIO_USING_CRLF 7169 # else 7170 /* If you really are DOSish. */ 7171 # define PERLIO_USING_CRLF 1 7172 # endif 7173 #endif 7174 7175 #ifdef I_LIBUTIL 7176 # include <libutil.h> /* setproctitle() in some FreeBSDs */ 7177 #endif 7178 7179 #ifndef EXEC_ARGV_CAST 7180 #define EXEC_ARGV_CAST(x) (char **)x 7181 #endif 7182 7183 #define IS_NUMBER_IN_UV 0x01 /* number within UV range (maybe not 7184 int). value returned in pointed- 7185 to UV */ 7186 #define IS_NUMBER_GREATER_THAN_UV_MAX 0x02 /* pointed to UV undefined */ 7187 #define IS_NUMBER_NOT_INT 0x04 /* saw . or E notation or infnan */ 7188 #define IS_NUMBER_NEG 0x08 /* leading minus sign */ 7189 #define IS_NUMBER_INFINITY 0x10 /* this is big */ 7190 #define IS_NUMBER_NAN 0x20 /* this is not */ 7191 #define IS_NUMBER_TRAILING 0x40 /* number has trailing trash */ 7192 7193 /* 7194 =head1 Numeric functions 7195 7196 =for apidoc AmdR|bool|GROK_NUMERIC_RADIX|NN const char **sp|NN const char *send 7197 7198 A synonym for L</grok_numeric_radix> 7199 7200 =cut 7201 */ 7202 #define GROK_NUMERIC_RADIX(sp, send) grok_numeric_radix(sp, send) 7203 7204 /* Number scan flags. All are used for input, the ones used for output are so 7205 * marked */ 7206 #define PERL_SCAN_ALLOW_UNDERSCORES 0x01 /* grok_??? accept _ in numbers */ 7207 #define PERL_SCAN_DISALLOW_PREFIX 0x02 /* grok_??? reject 0x in hex etc */ 7208 7209 /* grok_??? input: ignored; output: found overflow */ 7210 #define PERL_SCAN_GREATER_THAN_UV_MAX 0x04 7211 7212 /* grok_??? don't warn about illegal digits. To preserve total backcompat, 7213 * this isn't set on output if one is found. Instead, see 7214 * PERL_SCAN_NOTIFY_ILLDIGIT. */ 7215 #define PERL_SCAN_SILENT_ILLDIGIT 0x08 7216 7217 #define PERL_SCAN_TRAILING 0x10 /* grok_number_flags() allow trailing 7218 and set IS_NUMBER_TRAILING */ 7219 7220 /* These are considered experimental, so not exposed publicly */ 7221 #if defined(PERL_CORE) || defined(PERL_EXT) 7222 /* grok_??? don't warn about very large numbers which are <= UV_MAX; 7223 * output: found such a number */ 7224 # define PERL_SCAN_SILENT_NON_PORTABLE 0x20 7225 7226 /* If this is set on input, and no illegal digit is found, it will be cleared 7227 * on output; otherwise unchanged */ 7228 # define PERL_SCAN_NOTIFY_ILLDIGIT 0x40 7229 7230 /* Don't warn on overflow; output flag still set */ 7231 # define PERL_SCAN_SILENT_OVERFLOW 0x80 7232 7233 /* Forbid a leading underscore, which the other one doesn't */ 7234 # define PERL_SCAN_ALLOW_MEDIAL_UNDERSCORES (0x100|PERL_SCAN_ALLOW_UNDERSCORES) 7235 #endif 7236 7237 7238 /* to let user control profiling */ 7239 #ifdef PERL_GPROF_CONTROL 7240 extern void moncontrol(int); 7241 #define PERL_GPROF_MONCONTROL(x) moncontrol(x) 7242 #else 7243 #define PERL_GPROF_MONCONTROL(x) 7244 #endif 7245 7246 /* ISO 6429 NEL - C1 control NExt Line */ 7247 /* See https://www.unicode.org/unicode/reports/tr13/ */ 7248 #define NEXT_LINE_CHAR NEXT_LINE_NATIVE 7249 7250 #ifndef PIPESOCK_MODE 7251 # define PIPESOCK_MODE 7252 #endif 7253 7254 #ifndef SOCKET_OPEN_MODE 7255 # define SOCKET_OPEN_MODE PIPESOCK_MODE 7256 #endif 7257 7258 #ifndef PIPE_OPEN_MODE 7259 # define PIPE_OPEN_MODE PIPESOCK_MODE 7260 #endif 7261 7262 #define PERL_MAGIC_UTF8_CACHESIZE 2 7263 7264 #define PERL_UNICODE_STDIN_FLAG 0x0001 7265 #define PERL_UNICODE_STDOUT_FLAG 0x0002 7266 #define PERL_UNICODE_STDERR_FLAG 0x0004 7267 #define PERL_UNICODE_IN_FLAG 0x0008 7268 #define PERL_UNICODE_OUT_FLAG 0x0010 7269 #define PERL_UNICODE_ARGV_FLAG 0x0020 7270 #define PERL_UNICODE_LOCALE_FLAG 0x0040 7271 #define PERL_UNICODE_WIDESYSCALLS_FLAG 0x0080 /* for Sarathy */ 7272 #define PERL_UNICODE_UTF8CACHEASSERT_FLAG 0x0100 7273 7274 #define PERL_UNICODE_STD_FLAG \ 7275 (PERL_UNICODE_STDIN_FLAG | \ 7276 PERL_UNICODE_STDOUT_FLAG | \ 7277 PERL_UNICODE_STDERR_FLAG) 7278 7279 #define PERL_UNICODE_INOUT_FLAG \ 7280 (PERL_UNICODE_IN_FLAG | \ 7281 PERL_UNICODE_OUT_FLAG) 7282 7283 #define PERL_UNICODE_DEFAULT_FLAGS \ 7284 (PERL_UNICODE_STD_FLAG | \ 7285 PERL_UNICODE_INOUT_FLAG | \ 7286 PERL_UNICODE_LOCALE_FLAG) 7287 7288 #define PERL_UNICODE_ALL_FLAGS 0x01ff 7289 7290 #define PERL_UNICODE_STDIN 'I' 7291 #define PERL_UNICODE_STDOUT 'O' 7292 #define PERL_UNICODE_STDERR 'E' 7293 #define PERL_UNICODE_STD 'S' 7294 #define PERL_UNICODE_IN 'i' 7295 #define PERL_UNICODE_OUT 'o' 7296 #define PERL_UNICODE_INOUT 'D' 7297 #define PERL_UNICODE_ARGV 'A' 7298 #define PERL_UNICODE_LOCALE 'L' 7299 #define PERL_UNICODE_WIDESYSCALLS 'W' 7300 #define PERL_UNICODE_UTF8CACHEASSERT 'a' 7301 7302 #define PERL_SIGNALS_UNSAFE_FLAG 0x0001 7303 7304 /* 7305 =head1 Numeric functions 7306 7307 =for apidoc Am|int|PERL_ABS|int 7308 7309 Typeless C<abs> or C<fabs>, I<etc>. (The usage below indicates it is for 7310 integers, but it works for any type.) Use instead of these, since the C 7311 library ones force their argument to be what it is expecting, potentially 7312 leading to disaster. But also beware that this evaluates its argument twice, 7313 so no C<x++>. 7314 7315 =cut 7316 */ 7317 7318 #define PERL_ABS(x) ((x) < 0 ? -(x) : (x)) 7319 7320 #if defined(__DECC) && defined(__osf__) 7321 #pragma message disable (mainparm) /* Perl uses the envp in main(). */ 7322 #endif 7323 7324 #define do_open(g, n, l, a, rm, rp, sf) \ 7325 do_openn(g, n, l, a, rm, rp, sf, (SV **) NULL, 0) 7326 #ifdef PERL_DEFAULT_DO_EXEC3_IMPLEMENTATION 7327 # define do_exec(cmd) do_exec3(cmd,0,0) 7328 #endif 7329 #ifdef OS2 7330 # define do_aexec Perl_do_aexec 7331 #else 7332 # define do_aexec(really, mark,sp) do_aexec5(really, mark, sp, 0, 0) 7333 #endif 7334 7335 7336 /* 7337 =head1 Miscellaneous Functions 7338 7339 =for apidoc Am|bool|IS_SAFE_SYSCALL|NN const char *pv|STRLEN len|NN const char *what|NN const char *op_name 7340 7341 Same as L</is_safe_syscall>. 7342 7343 =cut 7344 7345 Allows one ending \0 7346 */ 7347 #define IS_SAFE_SYSCALL(p, len, what, op_name) (Perl_is_safe_syscall(aTHX_ (p), (len), (what), (op_name))) 7348 7349 #define IS_SAFE_PATHNAME(p, len, op_name) IS_SAFE_SYSCALL((p), (len), "pathname", (op_name)) 7350 7351 #if defined(OEMVS) || defined(__amigaos4__) 7352 #define NO_ENV_ARRAY_IN_MAIN 7353 #endif 7354 7355 /* These are used by Perl_pv_escape() and Perl_pv_pretty() 7356 * are here so that they are available throughout the core 7357 * NOTE that even though some are for _escape and some for _pretty 7358 * there must not be any clashes as the flags from _pretty are 7359 * passed straight through to _escape. 7360 */ 7361 7362 #define PERL_PV_ESCAPE_QUOTE 0x000001 7363 #define PERL_PV_PRETTY_QUOTE PERL_PV_ESCAPE_QUOTE 7364 7365 #define PERL_PV_PRETTY_ELLIPSES 0x000002 7366 #define PERL_PV_PRETTY_LTGT 0x000004 7367 #define PERL_PV_PRETTY_EXACTSIZE 0x000008 7368 7369 #define PERL_PV_ESCAPE_UNI 0x000100 7370 #define PERL_PV_ESCAPE_UNI_DETECT 0x000200 7371 #define PERL_PV_ESCAPE_NONASCII 0x000400 7372 #define PERL_PV_ESCAPE_FIRSTCHAR 0x000800 7373 7374 #define PERL_PV_ESCAPE_ALL 0x001000 7375 #define PERL_PV_ESCAPE_NOBACKSLASH 0x002000 7376 #define PERL_PV_ESCAPE_NOCLEAR 0x004000 7377 #define PERL_PV_PRETTY_NOCLEAR PERL_PV_ESCAPE_NOCLEAR 7378 #define PERL_PV_ESCAPE_RE 0x008000 7379 7380 #define PERL_PV_ESCAPE_DWIM 0x010000 7381 7382 7383 /* used by pv_display in dump.c*/ 7384 #define PERL_PV_PRETTY_DUMP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_QUOTE 7385 #define PERL_PV_PRETTY_REGPROP PERL_PV_PRETTY_ELLIPSES|PERL_PV_PRETTY_LTGT|PERL_PV_ESCAPE_RE|PERL_PV_ESCAPE_NONASCII 7386 7387 #if DOUBLEKIND == DOUBLE_IS_VAX_F_FLOAT || \ 7388 DOUBLEKIND == DOUBLE_IS_VAX_D_FLOAT || \ 7389 DOUBLEKIND == DOUBLE_IS_VAX_G_FLOAT 7390 # define DOUBLE_IS_VAX_FLOAT 7391 #else 7392 # define DOUBLE_IS_IEEE_FORMAT 7393 #endif 7394 7395 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN || \ 7396 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN || \ 7397 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7398 # define DOUBLE_LITTLE_ENDIAN 7399 #endif 7400 7401 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN || \ 7402 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN || \ 7403 DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7404 # define DOUBLE_BIG_ENDIAN 7405 #endif 7406 7407 #if DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE || \ 7408 DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 7409 # define DOUBLE_MIX_ENDIAN 7410 #endif 7411 7412 /* The VAX fp formats are neither consistently little-endian nor 7413 * big-endian, and neither are they really IEEE-mixed endian like 7414 * the mixed-endian ARM IEEE formats (with swapped bytes). 7415 * Ultimately, the VAX format came from the PDP-11. 7416 * 7417 * The ordering of the parts in VAX floats is quite vexing. 7418 * In the below the fraction_n are the mantissa bits. 7419 * 7420 * The fraction_1 is the most significant (numbering as by DEC/Digital), 7421 * while the rightmost bit in each fraction is the least significant: 7422 * in other words, big-endian bit order within the fractions. 7423 * 7424 * The fraction segments themselves would be big-endianly, except that 7425 * within 32 bit segments the less significant half comes first, the more 7426 * significant after, except that in the format H (used for long doubles) 7427 * the first fraction segment is alone, because the exponent is wider. 7428 * This means for example that both the most and the least significant 7429 * bits can be in the middle of the floats, not at either end. 7430 * 7431 * References: 7432 * http://nssdc.gsfc.nasa.gov/nssdc/formats/VAXFloatingPoint.htm 7433 * http://www.quadibloc.com/comp/cp0201.htm 7434 * http://h71000.www7.hp.com/doc/82final/6443/6443pro_028.html 7435 * (somebody at HP should be fired for the URLs) 7436 * 7437 * F fraction_2:16 sign:1 exp:8 fraction_1:7 7438 * (exponent bias 128, hidden first one-bit) 7439 * 7440 * D fraction_2:16 sign:1 exp:8 fraction_1:7 7441 * fraction_4:16 fraction_3:16 7442 * (exponent bias 128, hidden first one-bit) 7443 * 7444 * G fraction_2:16 sign:1 exp:11 fraction_1:4 7445 * fraction_4:16 fraction_3:16 7446 * (exponent bias 1024, hidden first one-bit) 7447 * 7448 * H fraction_1:16 sign:1 exp:15 7449 * fraction_3:16 fraction_2:16 7450 * fraction_5:16 fraction_4:16 7451 * fraction_7:16 fraction_6:16 7452 * (exponent bias 16384, hidden first one-bit) 7453 * (available only on VAX, and only on Fortran?) 7454 * 7455 * The formats S, T and X are available on the Alpha (and Itanium, 7456 * also known as I64/IA64) and are equivalent with the IEEE-754 formats 7457 * binary32, binary64, and binary128 (commonly: float, double, long double). 7458 * 7459 * S sign:1 exp:8 mantissa:23 7460 * (exponent bias 127, hidden first one-bit) 7461 * 7462 * T sign:1 exp:11 mantissa:52 7463 * (exponent bias 1022, hidden first one-bit) 7464 * 7465 * X sign:1 exp:15 mantissa:112 7466 * (exponent bias 16382, hidden first one-bit) 7467 * 7468 */ 7469 7470 #ifdef DOUBLE_IS_VAX_FLOAT 7471 # define DOUBLE_VAX_ENDIAN 7472 #endif 7473 7474 #ifdef DOUBLE_IS_IEEE_FORMAT 7475 /* All the basic IEEE formats have the implicit bit, 7476 * except for the x86 80-bit extended formats, which will undef this. 7477 * Also note that the IEEE 754 subnormals (formerly known as denormals) 7478 * do not have the implicit bit of one. */ 7479 # define NV_IMPLICIT_BIT 7480 #endif 7481 7482 #if defined(LONG_DOUBLEKIND) && LONG_DOUBLEKIND != LONG_DOUBLE_IS_DOUBLE 7483 7484 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN || \ 7485 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7486 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7487 # define LONGDOUBLE_LITTLE_ENDIAN 7488 # endif 7489 7490 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN || \ 7491 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN || \ 7492 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7493 # define LONGDOUBLE_BIG_ENDIAN 7494 # endif 7495 7496 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7497 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7498 # define LONGDOUBLE_MIX_ENDIAN 7499 # endif 7500 7501 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7502 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7503 # define LONGDOUBLE_X86_80_BIT 7504 # ifdef USE_LONG_DOUBLE 7505 # undef NV_IMPLICIT_BIT 7506 # define NV_X86_80_BIT 7507 # endif 7508 # endif 7509 7510 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 7511 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 7512 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7513 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7514 # define LONGDOUBLE_DOUBLEDOUBLE 7515 # endif 7516 7517 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_VAX_H_FLOAT 7518 # define LONGDOUBLE_VAX_ENDIAN 7519 # endif 7520 7521 #endif /* LONG_DOUBLEKIND */ 7522 7523 #ifdef USE_QUADMATH /* assume quadmath endianness == native double endianness */ 7524 # if defined(DOUBLE_LITTLE_ENDIAN) 7525 # define NV_LITTLE_ENDIAN 7526 # elif defined(DOUBLE_BIG_ENDIAN) 7527 # define NV_BIG_ENDIAN 7528 # elif defined(DOUBLE_MIX_ENDIAN) /* stretch */ 7529 # define NV_MIX_ENDIAN 7530 # endif 7531 #elif NVSIZE == DOUBLESIZE 7532 # ifdef DOUBLE_LITTLE_ENDIAN 7533 # define NV_LITTLE_ENDIAN 7534 # endif 7535 # ifdef DOUBLE_BIG_ENDIAN 7536 # define NV_BIG_ENDIAN 7537 # endif 7538 # ifdef DOUBLE_MIX_ENDIAN 7539 # define NV_MIX_ENDIAN 7540 # endif 7541 # ifdef DOUBLE_VAX_ENDIAN 7542 # define NV_VAX_ENDIAN 7543 # endif 7544 #elif NVSIZE == LONG_DOUBLESIZE 7545 # ifdef LONGDOUBLE_LITTLE_ENDIAN 7546 # define NV_LITTLE_ENDIAN 7547 # endif 7548 # ifdef LONGDOUBLE_BIG_ENDIAN 7549 # define NV_BIG_ENDIAN 7550 # endif 7551 # ifdef LONGDOUBLE_MIX_ENDIAN 7552 # define NV_MIX_ENDIAN 7553 # endif 7554 # ifdef LONGDOUBLE_VAX_ENDIAN 7555 # define NV_VAX_ENDIAN 7556 # endif 7557 #endif 7558 7559 /* We have somehow managed not to define the denormal/subnormal 7560 * detection. 7561 * 7562 * This may happen if the compiler doesn't expose the C99 math like 7563 * the fpclassify() without some special switches. Perl tries to 7564 * stay C89, so for example -std=c99 is not an option. 7565 * 7566 * The Perl_isinf() and Perl_isnan() should have been defined even if 7567 * the C99 isinf() and isnan() are unavailable, and the NV_MIN becomes 7568 * from the C89 DBL_MIN or moral equivalent. */ 7569 #if !defined(Perl_fp_class_denorm) && defined(Perl_isinf) && defined(Perl_isnan) && defined(NV_MIN) 7570 # define Perl_fp_class_denorm(x) ((x) != 0.0 && !Perl_isinf(x) && !Perl_isnan(x) && PERL_ABS(x) < NV_MIN) 7571 #endif 7572 7573 /* This is not a great fallback: subnormals tests will fail, 7574 * but at least Perl will link and 99.999% of tests will work. */ 7575 #if !defined(Perl_fp_class_denorm) 7576 # define Perl_fp_class_denorm(x) FALSE 7577 #endif 7578 7579 #ifdef DOUBLE_IS_IEEE_FORMAT 7580 # define DOUBLE_HAS_INF 7581 # define DOUBLE_HAS_NAN 7582 #endif 7583 7584 #ifdef DOUBLE_HAS_NAN 7585 7586 START_EXTERN_C 7587 7588 #ifdef DOINIT 7589 7590 /* PL_inf and PL_nan initialization. 7591 * 7592 * For inf and nan initialization the ultimate fallback is dividing 7593 * one or zero by zero: however, some compilers will warn or even fail 7594 * on divide-by-zero, but hopefully something earlier will work. 7595 * 7596 * If you are thinking of using HUGE_VAL for infinity, or using 7597 * <math.h> functions to generate NV_INF (e.g. exp(1e9), log(-1.0)), 7598 * stop. Neither will work portably: HUGE_VAL can be just DBL_MAX, 7599 * and the math functions might be just generating DBL_MAX, or even zero. 7600 * 7601 * Also, do NOT try doing NV_NAN based on NV_INF and trying (NV_INF-NV_INF). 7602 * Though logically correct, some compilers (like Visual C 2003) 7603 * falsely misoptimize that to zero (x-x is always zero, right?) 7604 * 7605 * Finally, note that not all floating point formats define Inf (or NaN). 7606 * For the infinity a large number may be used instead. Operations that 7607 * under the IEEE floating point would return Inf or NaN may return 7608 * either large numbers (positive or negative), or they may cause 7609 * a floating point exception or some other fault. 7610 */ 7611 7612 /* The quadmath literals are anon structs which -Wc++-compat doesn't like. */ 7613 # ifndef USE_CPLUSPLUS 7614 GCC_DIAG_IGNORE_DECL(-Wc++-compat); 7615 # endif 7616 7617 # ifdef USE_QUADMATH 7618 /* Cannot use HUGE_VALQ for PL_inf because not a compile-time 7619 * constant. */ 7620 INFNAN_NV_U8_DECL PL_inf = { 1.0Q/0.0Q }; 7621 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLINFBYTES) 7622 INFNAN_U8_NV_DECL PL_inf = { { LONGDBLINFBYTES } }; 7623 # elif NVSIZE == DOUBLESIZE && defined(DOUBLEINFBYTES) 7624 INFNAN_U8_NV_DECL PL_inf = { { DOUBLEINFBYTES } }; 7625 # else 7626 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 7627 # if defined(LDBL_INFINITY) 7628 INFNAN_NV_U8_DECL PL_inf = { LDBL_INFINITY }; 7629 # elif defined(LDBL_INF) 7630 INFNAN_NV_U8_DECL PL_inf = { LDBL_INF }; 7631 # elif defined(INFINITY) 7632 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 7633 # elif defined(INF) 7634 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 7635 # else 7636 INFNAN_NV_U8_DECL PL_inf = { 1.0L/0.0L }; /* keep last */ 7637 # endif 7638 # else 7639 # if defined(DBL_INFINITY) 7640 INFNAN_NV_U8_DECL PL_inf = { DBL_INFINITY }; 7641 # elif defined(DBL_INF) 7642 INFNAN_NV_U8_DECL PL_inf = { DBL_INF }; 7643 # elif defined(INFINITY) /* C99 */ 7644 INFNAN_NV_U8_DECL PL_inf = { (NV)INFINITY }; 7645 # elif defined(INF) 7646 INFNAN_NV_U8_DECL PL_inf = { (NV)INF }; 7647 # else 7648 INFNAN_NV_U8_DECL PL_inf = { 1.0/0.0 }; /* keep last */ 7649 # endif 7650 # endif 7651 # endif 7652 7653 # ifdef USE_QUADMATH 7654 /* Cannot use nanq("0") for PL_nan because not a compile-time 7655 * constant. */ 7656 INFNAN_NV_U8_DECL PL_nan = { 0.0Q/0.0Q }; 7657 # elif NVSIZE == LONG_DOUBLESIZE && defined(LONGDBLNANBYTES) 7658 INFNAN_U8_NV_DECL PL_nan = { { LONGDBLNANBYTES } }; 7659 # elif NVSIZE == DOUBLESIZE && defined(DOUBLENANBYTES) 7660 INFNAN_U8_NV_DECL PL_nan = { { DOUBLENANBYTES } }; 7661 # else 7662 # if NVSIZE == LONG_DOUBLESIZE && defined(USE_LONG_DOUBLE) 7663 # if defined(LDBL_NAN) 7664 INFNAN_NV_U8_DECL PL_nan = { LDBL_NAN }; 7665 # elif defined(LDBL_QNAN) 7666 INFNAN_NV_U8_DECL PL_nan = { LDBL_QNAN }; 7667 # elif defined(NAN) 7668 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 7669 # else 7670 INFNAN_NV_U8_DECL PL_nan = { 0.0L/0.0L }; /* keep last */ 7671 # endif 7672 # else 7673 # if defined(DBL_NAN) 7674 INFNAN_NV_U8_DECL PL_nan = { DBL_NAN }; 7675 # elif defined(DBL_QNAN) 7676 INFNAN_NV_U8_DECL PL_nan = { DBL_QNAN }; 7677 # elif defined(NAN) /* C99 */ 7678 INFNAN_NV_U8_DECL PL_nan = { (NV)NAN }; 7679 # else 7680 INFNAN_NV_U8_DECL PL_nan = { 0.0/0.0 }; /* keep last */ 7681 # endif 7682 # endif 7683 # endif 7684 7685 # ifndef USE_CPLUSPLUS 7686 GCC_DIAG_RESTORE_DECL; 7687 # endif 7688 7689 #else 7690 7691 INFNAN_NV_U8_DECL PL_inf; 7692 INFNAN_NV_U8_DECL PL_nan; 7693 7694 #endif 7695 7696 END_EXTERN_C 7697 7698 /* If you have not defined NV_INF/NV_NAN (like for example win32/win32.h), 7699 * we will define NV_INF/NV_NAN as the nv part of the global const 7700 * PL_inf/PL_nan. Note, however, that the preexisting NV_INF/NV_NAN 7701 * might not be a compile-time constant, in which case it cannot be 7702 * used to initialize PL_inf/PL_nan above. */ 7703 #ifndef NV_INF 7704 # define NV_INF PL_inf.nv 7705 #endif 7706 #ifndef NV_NAN 7707 # define NV_NAN PL_nan.nv 7708 #endif 7709 7710 /* NaNs (not-a-numbers) can carry payload bits, in addition to 7711 * "nan-ness". Part of the payload is the quiet/signaling bit. 7712 * To back up a bit (harhar): 7713 * 7714 * For IEEE 754 64-bit formats [1]: 7715 * 7716 * s 000 (mantissa all-zero) zero 7717 * s 000 (mantissa non-zero) subnormals (denormals) 7718 * s 001 ... 7fe normals 7719 * s 7ff q nan 7720 * 7721 * For IEEE 754 128-bit formats: 7722 * 7723 * s 0000 (mantissa all-zero) zero 7724 * s 0000 (mantissa non-zero) subnormals (denormals) 7725 * s 0001 ... 7ffe normals 7726 * s 7fff q nan 7727 * 7728 * [1] this looks like big-endian, but applies equally to little-endian. 7729 * 7730 * s = Sign bit. Yes, zeros and nans can have negative sign, 7731 * the interpretation is application-specific. 7732 * 7733 * q = Quietness bit, the interpretation is platform-specific. 7734 * Most platforms have the most significant bit being one 7735 * meaning quiet, but some (older mips, hppa) have the msb 7736 * being one meaning signaling. Note that the above means 7737 * that on most platforms there cannot be signaling nan with 7738 * zero payload because that is identical with infinity; 7739 * while conversely on older mips/hppa there cannot be a quiet nan 7740 * because that is identical with infinity. 7741 * 7742 * Moreover, whether there is any behavioral difference 7743 * between quiet and signaling NaNs, depends on the platform. 7744 * 7745 * x86 80-bit extended precision is different, the mantissa bits: 7746 * 7747 * 63 62 61 30387+ pre-387 visual c 7748 * -------- ---- -------- -------- 7749 * 0 0 0 invalid infinity 7750 * 0 0 1 invalid snan 7751 * 0 1 0 invalid snan 7752 * 0 1 1 invalid snan 7753 * 1 0 0 infinity snan 1.#INF 7754 * 1 0 1 snan 1.#SNAN 7755 * 1 1 0 qnan -1.#IND (x86 chooses this to negative) 7756 * 1 1 1 qnan 1.#QNAN 7757 * 7758 * This means that in this format there are 61 bits available 7759 * for the nan payload. 7760 * 7761 * Note that the 32-bit x86 ABI cannot do signaling nans: the x87 7762 * simply cannot preserve the bit. You can either use the 80-bit 7763 * extended precision (long double, -Duselongdouble), or use x86-64. 7764 * 7765 * In all platforms, the payload bytes (and bits, some of them are 7766 * often in a partial byte) themselves can be either all zero (x86), 7767 * all one (sparc or mips), or a mixture: in IEEE 754 128-bit double 7768 * or in a double-double, the first half of the payload can follow the 7769 * native double, while in the second half the payload can be all 7770 * zeros. (Therefore the mask for payload bits is not necessarily 7771 * identical to bit complement of the NaN.) Another way of putting 7772 * this: the payload for the default NaN might not be zero. 7773 * 7774 * For the x86 80-bit long doubles, the trailing bytes (the 80 bits 7775 * being 'packaged' in either 12 or 16 bytes) can be whatever random 7776 * garbage. 7777 * 7778 * Furthermore, the semantics of the sign bit on NaNs are platform-specific. 7779 * On normal floats, the sign bit being on means negative. But this may, 7780 * or may not, be reverted on NaNs: in other words, the default NaN might 7781 * have the sign bit on, and therefore look like negative if you look 7782 * at it at the bit level. 7783 * 7784 * NaN payloads are not propagated even on copies, or in arithmetics. 7785 * They *might* be, according to some rules, on your particular 7786 * cpu/os/compiler/libraries, but no guarantees. 7787 * 7788 * To summarize, on most platforms, and for 64-bit doubles 7789 * (using big-endian ordering here): 7790 * 7791 * [7FF8000000000000..7FFFFFFFFFFFFFFF] quiet 7792 * [FFF8000000000000..FFFFFFFFFFFFFFFF] quiet 7793 * [7FF0000000000001..7FF7FFFFFFFFFFFF] signaling 7794 * [FFF0000000000001..FFF7FFFFFFFFFFFF] signaling 7795 * 7796 * The C99 nan() is supposed to generate *quiet* NaNs. 7797 * 7798 * Note the asymmetry: 7799 * The 7FF0000000000000 is positive infinity, 7800 * the FFF0000000000000 is negative infinity. 7801 */ 7802 7803 /* NVMANTBITS is the number of _real_ mantissa bits in an NV. 7804 * For the standard IEEE 754 fp this number is usually one less that 7805 * *DBL_MANT_DIG because of the implicit (aka hidden) bit, which isn't 7806 * real. For the 80-bit extended precision formats (x86*), the number 7807 * of mantissa bits... depends. For normal floats, it's 64. But for 7808 * the inf/nan, it's different (zero for inf, 61 for nan). 7809 * NVMANTBITS works for normal floats. */ 7810 7811 /* We do not want to include the quiet/signaling bit. */ 7812 #define NV_NAN_BITS (NVMANTBITS - 1) 7813 7814 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 7815 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7816 # define NV_NAN_QS_BYTE_OFFSET 13 7817 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7818 # define NV_NAN_QS_BYTE_OFFSET 2 7819 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 7820 # define NV_NAN_QS_BYTE_OFFSET 7 7821 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7822 # define NV_NAN_QS_BYTE_OFFSET 2 7823 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 7824 # define NV_NAN_QS_BYTE_OFFSET 13 7825 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 7826 # define NV_NAN_QS_BYTE_OFFSET 1 7827 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 7828 # define NV_NAN_QS_BYTE_OFFSET 9 7829 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 7830 # define NV_NAN_QS_BYTE_OFFSET 6 7831 # else 7832 # error "Unexpected long double format" 7833 # endif 7834 #else 7835 # ifdef USE_QUADMATH 7836 # ifdef NV_LITTLE_ENDIAN 7837 # define NV_NAN_QS_BYTE_OFFSET 13 7838 # elif defined(NV_BIG_ENDIAN) 7839 # define NV_NAN_QS_BYTE_OFFSET 2 7840 # else 7841 # error "Unexpected quadmath format" 7842 # endif 7843 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 7844 # define NV_NAN_QS_BYTE_OFFSET 2 7845 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 7846 # define NV_NAN_QS_BYTE_OFFSET 1 7847 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 7848 # define NV_NAN_QS_BYTE_OFFSET 6 7849 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 7850 # define NV_NAN_QS_BYTE_OFFSET 1 7851 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7852 # define NV_NAN_QS_BYTE_OFFSET 13 7853 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7854 # define NV_NAN_QS_BYTE_OFFSET 2 7855 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 7856 # define NV_NAN_QS_BYTE_OFFSET 2 /* bytes 4 5 6 7 0 1 2 3 (MSB 7) */ 7857 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 7858 # define NV_NAN_QS_BYTE_OFFSET 5 /* bytes 3 2 1 0 7 6 5 4 (MSB 7) */ 7859 # else 7860 /* For example the VAX formats should never 7861 * get here because they do not have NaN. */ 7862 # error "Unexpected double format" 7863 # endif 7864 #endif 7865 /* NV_NAN_QS_BYTE is the byte to test for the quiet/signaling */ 7866 #define NV_NAN_QS_BYTE(nvp) (((U8*)(nvp))[NV_NAN_QS_BYTE_OFFSET]) 7867 /* NV_NAN_QS_BIT is the bit to test in the NV_NAN_QS_BYTE_OFFSET 7868 * for the quiet/signaling */ 7869 #if defined(USE_LONG_DOUBLE) && \ 7870 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN || \ 7871 LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN) 7872 # define NV_NAN_QS_BIT_SHIFT 6 /* 0x40 */ 7873 #elif defined(USE_LONG_DOUBLE) && \ 7874 (LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE || \ 7875 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE || \ 7876 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE || \ 7877 LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE) 7878 # define NV_NAN_QS_BIT_SHIFT 3 /* 0x08, but not via NV_NAN_BITS */ 7879 #else 7880 # define NV_NAN_QS_BIT_SHIFT ((NV_NAN_BITS) % 8) /* usually 3, or 0x08 */ 7881 #endif 7882 #define NV_NAN_QS_BIT (1 << (NV_NAN_QS_BIT_SHIFT)) 7883 /* NV_NAN_QS_BIT_OFFSET is the bit offset from the beginning of a NV 7884 * (bytes ordered big-endianly) for the quiet/signaling bit 7885 * for the quiet/signaling */ 7886 #define NV_NAN_QS_BIT_OFFSET \ 7887 (8 * (NV_NAN_QS_BYTE_OFFSET) + (NV_NAN_QS_BIT_SHIFT)) 7888 /* NV_NAN_QS_QUIET (always defined) is true if the NV_NAN_QS_QS_BIT being 7889 * on indicates quiet NaN. NV_NAN_QS_SIGNALING (also always defined) 7890 * is true if the NV_NAN_QS_BIT being on indicates signaling NaN. */ 7891 #define NV_NAN_QS_QUIET \ 7892 ((NV_NAN_QS_BYTE(PL_nan.u8) & NV_NAN_QS_BIT) == NV_NAN_QS_BIT) 7893 #define NV_NAN_QS_SIGNALING (!(NV_NAN_QS_QUIET)) 7894 #define NV_NAN_QS_TEST(nvp) (NV_NAN_QS_BYTE(nvp) & NV_NAN_QS_BIT) 7895 /* NV_NAN_IS_QUIET() returns true if the NV behind nvp is a NaN, 7896 * whether it is a quiet NaN, NV_NAN_IS_SIGNALING() if a signaling NaN. 7897 * Note however that these do not check whether the nvp is a NaN. */ 7898 #define NV_NAN_IS_QUIET(nvp) \ 7899 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? NV_NAN_QS_BIT : 0)) 7900 #define NV_NAN_IS_SIGNALING(nvp) \ 7901 (NV_NAN_QS_TEST(nvp) == (NV_NAN_QS_QUIET ? 0 : NV_NAN_QS_BIT)) 7902 #define NV_NAN_SET_QUIET(nvp) \ 7903 (NV_NAN_QS_QUIET ? \ 7904 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT) : \ 7905 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT)) 7906 #define NV_NAN_SET_SIGNALING(nvp) \ 7907 (NV_NAN_QS_QUIET ? \ 7908 (NV_NAN_QS_BYTE(nvp) &= ~NV_NAN_QS_BIT) : \ 7909 (NV_NAN_QS_BYTE(nvp) |= NV_NAN_QS_BIT)) 7910 #define NV_NAN_QS_XOR(nvp) (NV_NAN_QS_BYTE(nvp) ^= NV_NAN_QS_BIT) 7911 7912 /* NV_NAN_PAYLOAD_MASK: masking the nan payload bits. 7913 * 7914 * NV_NAN_PAYLOAD_PERM: permuting the nan payload bytes. 7915 * 0xFF means "don't go here".*/ 7916 7917 /* Shorthands to avoid typoses. */ 7918 #define NV_NAN_PAYLOAD_MASK_SKIP_EIGHT \ 7919 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 7920 #define NV_NAN_PAYLOAD_PERM_SKIP_EIGHT \ 7921 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7922 #define NV_NAN_PAYLOAD_PERM_0_TO_7 \ 7923 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 7924 #define NV_NAN_PAYLOAD_PERM_7_TO_0 \ 7925 0x7, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7926 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE \ 7927 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7928 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f, 0x00, 0x00 7929 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE \ 7930 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7931 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xFF, 0xFF 7932 #define NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE \ 7933 0x00, 0x00, 0x7f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7934 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7935 #define NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE \ 7936 0xFF, 0xFF, 0xd, 0xc, 0xb, 0xa, 0x9, 0x8, \ 7937 NV_NAN_PAYLOAD_PERM_7_TO_0 7938 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE \ 7939 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x07, 0x00 7940 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE \ 7941 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xFF 7942 #define NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE \ 7943 0x00, 0x07, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff 7944 #define NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE \ 7945 0xFF, 0x6, 0x5, 0x4, 0x3, 0x2, 0x1, 0x0 7946 7947 #if defined(USE_LONG_DOUBLE) && NVSIZE > DOUBLESIZE 7948 # if LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 7949 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 7950 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 7951 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 7952 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 7953 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 7954 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_LITTLE_ENDIAN 7955 # if LONG_DOUBLESIZE == 10 7956 # define NV_NAN_PAYLOAD_MASK \ 7957 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7958 0x00, 0x00 7959 # define NV_NAN_PAYLOAD_PERM \ 7960 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF 7961 # elif LONG_DOUBLESIZE == 12 7962 # define NV_NAN_PAYLOAD_MASK \ 7963 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7964 0x00, 0x00, 0x00, 0x00 7965 # define NV_NAN_PAYLOAD_PERM \ 7966 NV_NAN_PAYLOAD_PERM_0_TO_7, 0xFF, 0xFF, 0xFF, 0xFF 7967 # elif LONG_DOUBLESIZE == 16 7968 # define NV_NAN_PAYLOAD_MASK \ 7969 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, \ 7970 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7971 # define NV_NAN_PAYLOAD_PERM \ 7972 NV_NAN_PAYLOAD_PERM_0_TO_7, \ 7973 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7974 # else 7975 # error "Unexpected x86 80-bit little-endian long double format" 7976 # endif 7977 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_X86_80_BIT_BIG_ENDIAN 7978 # if LONG_DOUBLESIZE == 10 7979 # define NV_NAN_PAYLOAD_MASK \ 7980 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7981 0xff, 0xff 7982 # define NV_NAN_PAYLOAD_PERM \ 7983 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF 7984 # elif LONG_DOUBLESIZE == 12 7985 # define NV_NAN_PAYLOAD_MASK \ 7986 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7987 0xff, 0xff, 0x00, 0x00 7988 # define NV_NAN_PAYLOAD_PERM \ 7989 NV_NAN_PAYLOAD_PERM_7_TO_0, 0xFF, 0xFF, 0xFF, 0xFF 7990 # elif LONG_DOUBLESIZE == 16 7991 # define NV_NAN_PAYLOAD_MASK \ 7992 0x00, 0x00, 0x1f, 0xff, 0xff, 0xff, 0xff, 0xff, \ 7993 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 7994 # define NV_NAN_PAYLOAD_PERM \ 7995 NV_NAN_PAYLOAD_PERM_7_TO_0, \ 7996 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 7997 # else 7998 # error "Unexpected x86 80-bit big-endian long double format" 7999 # endif 8000 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_LE 8001 /* For double-double we assume only the first double (in LE or BE terms) 8002 * is used for NaN. */ 8003 # define NV_NAN_PAYLOAD_MASK \ 8004 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 8005 # define NV_NAN_PAYLOAD_PERM \ 8006 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 8007 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE 8008 # define NV_NAN_PAYLOAD_MASK \ 8009 NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 8010 # define NV_NAN_PAYLOAD_PERM \ 8011 NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 8012 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_LE_BE 8013 # define NV_NAN_PAYLOAD_MASK \ 8014 NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 8015 # define NV_NAN_PAYLOAD_PERM \ 8016 NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 8017 # elif LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_LE 8018 # define NV_NAN_PAYLOAD_MASK \ 8019 NV_NAN_PAYLOAD_MASK_SKIP_EIGHT, NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 8020 # define NV_NAN_PAYLOAD_PERM \ 8021 NV_NAN_PAYLOAD_PERM_SKIP_EIGHT, NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 8022 # else 8023 # error "Unexpected long double format" 8024 # endif 8025 #else 8026 # ifdef USE_QUADMATH /* quadmath is not long double */ 8027 # ifdef NV_LITTLE_ENDIAN 8028 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 8029 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 8030 # elif defined(NV_BIG_ENDIAN) 8031 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 8032 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 8033 # else 8034 # error "Unexpected quadmath format" 8035 # endif 8036 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_LITTLE_ENDIAN 8037 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00 8038 # define NV_NAN_PAYLOAD_PERM 0x0, 0x1, 0x2, 0xFF 8039 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_32_BIT_BIG_ENDIAN 8040 # define NV_NAN_PAYLOAD_MASK 0x00, 0x07, 0xff, 0xff 8041 # define NV_NAN_PAYLOAD_PERM 0xFF, 0x2, 0x1, 0x0 8042 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_LITTLE_ENDIAN 8043 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_LE 8044 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_LE 8045 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_BIG_ENDIAN 8046 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_64_BE 8047 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_64_BE 8048 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_LITTLE_ENDIAN 8049 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_LE 8050 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_LE 8051 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_128_BIT_BIG_ENDIAN 8052 # define NV_NAN_PAYLOAD_MASK NV_NAN_PAYLOAD_MASK_IEEE_754_128_BE 8053 # define NV_NAN_PAYLOAD_PERM NV_NAN_PAYLOAD_PERM_IEEE_754_128_BE 8054 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_LE_BE 8055 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0x07, 0x00, 0xff, 0xff, 0xff, 0xff 8056 # define NV_NAN_PAYLOAD_PERM 0x4, 0x5, 0x6, 0xFF, 0x0, 0x1, 0x2, 0x3 8057 # elif DOUBLEKIND == DOUBLE_IS_IEEE_754_64_BIT_MIXED_ENDIAN_BE_LE 8058 # define NV_NAN_PAYLOAD_MASK 0xff, 0xff, 0xff, 0xff, 0x00, 0x07, 0xff, 0xff 8059 # define NV_NAN_PAYLOAD_PERM 0x3, 0x2, 0x1, 0x0, 0xFF, 0x6, 0x5, 0x4 8060 # else 8061 # error "Unexpected double format" 8062 # endif 8063 #endif 8064 8065 #endif /* DOUBLE_HAS_NAN */ 8066 8067 8068 /* 8069 8070 (KEEP THIS LAST IN perl.h!) 8071 8072 Mention 8073 8074 NV_PRESERVES_UV 8075 8076 HAS_MKSTEMP 8077 HAS_MKSTEMPS 8078 HAS_MKDTEMP 8079 8080 HAS_GETCWD 8081 8082 HAS_MMAP 8083 HAS_MPROTECT 8084 HAS_MSYNC 8085 HAS_MADVISE 8086 HAS_MUNMAP 8087 I_SYSMMAN 8088 Mmap_t 8089 8090 NVef 8091 NVff 8092 NVgf 8093 8094 HAS_UALARM 8095 HAS_USLEEP 8096 8097 HAS_SETITIMER 8098 HAS_GETITIMER 8099 8100 HAS_SENDMSG 8101 HAS_RECVMSG 8102 HAS_READV 8103 HAS_WRITEV 8104 I_SYSUIO 8105 HAS_STRUCT_MSGHDR 8106 HAS_STRUCT_CMSGHDR 8107 8108 HAS_NL_LANGINFO 8109 8110 HAS_DIRFD 8111 8112 so that Configure picks them up. 8113 8114 (KEEP THIS LAST IN perl.h!) 8115 8116 */ 8117 8118 #endif /* Include guard */ 8119 8120 /* 8121 * ex: set ts=8 sts=4 sw=4 et: 8122 */ 8123