1 /* $NetBSD: luaconf.h,v 1.14 2015/10/08 13:21:00 mbalmer Exp $ */ 2 3 /* 4 ** Id: luaconf.h,v 1.251 2015/05/20 17:39:23 roberto Exp 5 ** Configuration file for Lua 6 ** See Copyright Notice in lua.h 7 */ 8 9 10 #ifndef luaconf_h 11 #define luaconf_h 12 13 #ifndef _KERNEL 14 #include <limits.h> 15 #include <stddef.h> 16 #else 17 #include <machine/limits.h> 18 #include <sys/systm.h> 19 #endif 20 21 22 /* 23 ** =================================================================== 24 ** Search for "@@" to find all configurable definitions. 25 ** =================================================================== 26 */ 27 28 29 /* 30 ** {==================================================================== 31 ** System Configuration: macros to adapt (if needed) Lua to some 32 ** particular platform, for instance compiling it with 32-bit numbers or 33 ** restricting it to C89. 34 ** ===================================================================== 35 */ 36 37 /* 38 @@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. You 39 ** can also define LUA_32BITS in the make file, but changing here you 40 ** ensure that all software connected to Lua will be compiled with the 41 ** same configuration. 42 */ 43 /* #define LUA_32BITS */ 44 45 46 /* 47 @@ LUA_USE_C89 controls the use of non-ISO-C89 features. 48 ** Define it if you want Lua to avoid the use of a few C99 features 49 ** or Windows-specific features on Windows. 50 */ 51 /* #define LUA_USE_C89 */ 52 53 54 /* 55 ** By default, Lua on Windows use (some) specific Windows features 56 */ 57 #if !defined(LUA_USE_C89) && defined(_WIN32) && !defined(_WIN32_WCE) 58 #define LUA_USE_WINDOWS /* enable goodies for regular Windows */ 59 #endif 60 61 62 #if defined(LUA_USE_WINDOWS) 63 #define LUA_DL_DLL /* enable support for DLL */ 64 #define LUA_USE_C89 /* broadly, Windows is C89 */ 65 #endif 66 67 68 #if defined(LUA_USE_LINUX) 69 #define LUA_USE_POSIX 70 #define LUA_USE_DLOPEN /* needs an extra library: -ldl */ 71 #define LUA_USE_READLINE /* needs some extra libraries */ 72 #endif 73 74 75 #if defined(LUA_USE_MACOSX) 76 #define LUA_USE_POSIX 77 #define LUA_USE_DLOPEN /* MacOS does not need -ldl */ 78 #define LUA_USE_READLINE /* needs an extra library: -lreadline */ 79 #endif 80 81 82 /* 83 @@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for 84 ** C89 ('long' and 'double'); Windows always has '__int64', so it does 85 ** not need to use this case. 86 */ 87 #if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS) 88 #define LUA_C89_NUMBERS 89 #endif 90 91 92 93 /* 94 @@ LUAI_BITSINT defines the (minimum) number of bits in an 'int'. 95 */ 96 /* avoid undefined shifts */ 97 #if ((INT_MAX >> 15) >> 15) >= 1 98 #define LUAI_BITSINT 32 99 #else 100 /* 'int' always must have at least 16 bits */ 101 #define LUAI_BITSINT 16 102 #endif 103 104 105 /* 106 @@ LUA_INT_TYPE defines the type for Lua integers. 107 @@ LUA_FLOAT_TYPE defines the type for Lua floats. 108 ** Lua should work fine with any mix of these options (if supported 109 ** by your C compiler). The usual configurations are 64-bit integers 110 ** and 'double' (the default), 32-bit integers and 'float' (for 111 ** restricted platforms), and 'long'/'double' (for C compilers not 112 ** compliant with C99, which may not have support for 'long long'). 113 */ 114 115 /* predefined options for LUA_INT_TYPE */ 116 #define LUA_INT_INT 1 117 #define LUA_INT_LONG 2 118 #define LUA_INT_LONGLONG 3 119 120 /* predefined options for LUA_FLOAT_TYPE */ 121 #define LUA_FLOAT_FLOAT 1 122 #define LUA_FLOAT_DOUBLE 2 123 #define LUA_FLOAT_LONGDOUBLE 3 124 125 #if defined(LUA_32BITS) /* { */ 126 /* 127 ** 32-bit integers and 'float' 128 */ 129 #if LUAI_BITSINT >= 32 /* use 'int' if big enough */ 130 #define LUA_INT_TYPE LUA_INT_INT 131 #else /* otherwise use 'long' */ 132 #define LUA_INT_TYPE LUA_INT_LONG 133 #endif 134 #define LUA_FLOAT_TYPE LUA_FLOAT_FLOAT 135 136 #elif defined(LUA_C89_NUMBERS) /* }{ */ 137 /* 138 ** largest types available for C89 ('long' and 'double') 139 */ 140 #define LUA_INT_TYPE LUA_INT_LONG 141 #define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE 142 143 #endif /* } */ 144 145 146 /* 147 ** default configuration for 64-bit Lua ('long long' and 'double') 148 */ 149 #if !defined(LUA_INT_TYPE) 150 #define LUA_INT_TYPE LUA_INT_LONGLONG 151 #endif 152 153 #if !defined(LUA_FLOAT_TYPE) 154 #define LUA_FLOAT_TYPE LUA_FLOAT_DOUBLE 155 #endif /* } */ 156 157 /* }================================================================== */ 158 159 160 161 162 /* 163 ** {================================================================== 164 ** Configuration for Paths. 165 ** =================================================================== 166 */ 167 168 /* 169 @@ LUA_PATH_DEFAULT is the default path that Lua uses to look for 170 ** Lua libraries. 171 @@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for 172 ** C libraries. 173 ** CHANGE them if your machine has a non-conventional directory 174 ** hierarchy or if you want to install your libraries in 175 ** non-conventional directories. 176 */ 177 #define LUA_VDIR LUA_VERSION_MAJOR "." LUA_VERSION_MINOR 178 #if defined(_WIN32) /* { */ 179 /* 180 ** In Windows, any exclamation mark ('!') in the path is replaced by the 181 ** path of the directory of the executable file of the current process. 182 */ 183 #define LUA_LDIR "!\\lua\\" 184 #define LUA_CDIR "!\\" 185 #define LUA_SHRDIR "!\\..\\share\\lua\\" LUA_VDIR "\\" 186 #define LUA_PATH_DEFAULT \ 187 LUA_LDIR"?.lua;" LUA_LDIR"?\\init.lua;" \ 188 LUA_CDIR"?.lua;" LUA_CDIR"?\\init.lua;" \ 189 LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \ 190 ".\\?.lua;" ".\\?\\init.lua" 191 #define LUA_CPATH_DEFAULT \ 192 LUA_CDIR"?.dll;" \ 193 LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \ 194 LUA_CDIR"loadall.dll;" ".\\?.dll" 195 196 #else /* }{ */ 197 198 #define LUA_ROOT "/usr/local/" 199 #define LUA_LDIR LUA_ROOT "share/lua/" LUA_VDIR "/" 200 #define LUA_CDIR LUA_ROOT "lib/lua/" LUA_VDIR "/" 201 #define LUA_PATH_DEFAULT \ 202 LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ 203 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua;" \ 204 "./?.lua;" "./?/init.lua" 205 #define LUA_CPATH_DEFAULT \ 206 LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so" 207 #endif /* } */ 208 209 210 /* 211 @@ LUA_DIRSEP is the directory separator (for submodules). 212 ** CHANGE it if your machine does not use "/" as the directory separator 213 ** and is not Windows. (On Windows Lua automatically uses "\".) 214 */ 215 #if defined(_WIN32) 216 #define LUA_DIRSEP "\\" 217 #else 218 #define LUA_DIRSEP "/" 219 #endif 220 221 /* }================================================================== */ 222 223 224 /* 225 ** {================================================================== 226 ** Marks for exported symbols in the C code 227 ** =================================================================== 228 */ 229 230 /* 231 @@ LUA_API is a mark for all core API functions. 232 @@ LUALIB_API is a mark for all auxiliary library functions. 233 @@ LUAMOD_API is a mark for all standard library opening functions. 234 ** CHANGE them if you need to define those functions in some special way. 235 ** For instance, if you want to create one Windows DLL with the core and 236 ** the libraries, you may want to use the following definition (define 237 ** LUA_BUILD_AS_DLL to get it). 238 */ 239 #if defined(LUA_BUILD_AS_DLL) /* { */ 240 241 #if defined(LUA_CORE) || defined(LUA_LIB) /* { */ 242 #define LUA_API __declspec(dllexport) 243 #else /* }{ */ 244 #define LUA_API __declspec(dllimport) 245 #endif /* } */ 246 247 #else /* }{ */ 248 249 #define LUA_API extern 250 251 #endif /* } */ 252 253 254 /* more often than not the libs go together with the core */ 255 #define LUALIB_API LUA_API 256 #define LUAMOD_API LUALIB_API 257 258 259 /* 260 @@ LUAI_FUNC is a mark for all extern functions that are not to be 261 ** exported to outside modules. 262 @@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables 263 ** that are not to be exported to outside modules (LUAI_DDEF for 264 ** definitions and LUAI_DDEC for declarations). 265 ** CHANGE them if you need to mark them in some special way. Elf/gcc 266 ** (versions 3.2 and later) mark them as "hidden" to optimize access 267 ** when Lua is compiled as a shared library. Not all elf targets support 268 ** this attribute. Unfortunately, gcc does not offer a way to check 269 ** whether the target offers that support, and those without support 270 ** give a warning about it. To avoid these warnings, change to the 271 ** default definition. 272 */ 273 #if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \ 274 defined(__ELF__) /* { */ 275 #define LUAI_FUNC __attribute__((visibility("hidden"))) extern 276 #else /* }{ */ 277 #define LUAI_FUNC extern 278 #endif /* } */ 279 280 #define LUAI_DDEC LUAI_FUNC 281 #define LUAI_DDEF /* empty */ 282 283 /* }================================================================== */ 284 285 286 /* 287 ** {================================================================== 288 ** Compatibility with previous versions 289 ** =================================================================== 290 */ 291 292 /* 293 @@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2. 294 @@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1. 295 ** You can define it to get all options, or change specific options 296 ** to fit your specific needs. 297 */ 298 #if defined(LUA_COMPAT_5_2) /* { */ 299 300 /* 301 @@ LUA_COMPAT_MATHLIB controls the presence of several deprecated 302 ** functions in the mathematical library. 303 */ 304 #define LUA_COMPAT_MATHLIB 305 306 /* 307 @@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'. 308 */ 309 #define LUA_COMPAT_BITLIB 310 311 /* 312 @@ LUA_COMPAT_IPAIRS controls the effectiveness of the __ipairs metamethod. 313 */ 314 #define LUA_COMPAT_IPAIRS 315 316 /* 317 @@ LUA_COMPAT_APIINTCASTS controls the presence of macros for 318 ** manipulating other integer types (lua_pushunsigned, lua_tounsigned, 319 ** luaL_checkint, luaL_checklong, etc.) 320 */ 321 #define LUA_COMPAT_APIINTCASTS 322 323 #endif /* } */ 324 325 326 #if defined(LUA_COMPAT_5_1) /* { */ 327 328 /* Incompatibilities from 5.2 -> 5.3 */ 329 #define LUA_COMPAT_MATHLIB 330 #define LUA_COMPAT_APIINTCASTS 331 332 /* 333 @@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'. 334 ** You can replace it with 'table.unpack'. 335 */ 336 #define LUA_COMPAT_UNPACK 337 338 /* 339 @@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'. 340 ** You can replace it with 'package.searchers'. 341 */ 342 #define LUA_COMPAT_LOADERS 343 344 /* 345 @@ macro 'lua_cpcall' emulates deprecated function lua_cpcall. 346 ** You can call your C function directly (with light C functions). 347 */ 348 #define lua_cpcall(L,f,u) \ 349 (lua_pushcfunction(L, (f)), \ 350 lua_pushlightuserdata(L,(u)), \ 351 lua_pcall(L,1,0,0)) 352 353 354 /* 355 @@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library. 356 ** You can rewrite 'log10(x)' as 'log(x, 10)'. 357 */ 358 #define LUA_COMPAT_LOG10 359 360 /* 361 @@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base 362 ** library. You can rewrite 'loadstring(s)' as 'load(s)'. 363 */ 364 #define LUA_COMPAT_LOADSTRING 365 366 /* 367 @@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library. 368 */ 369 #define LUA_COMPAT_MAXN 370 371 /* 372 @@ The following macros supply trivial compatibility for some 373 ** changes in the API. The macros themselves document how to 374 ** change your code to avoid using them. 375 */ 376 #define lua_strlen(L,i) lua_rawlen(L, (i)) 377 378 #define lua_objlen(L,i) lua_rawlen(L, (i)) 379 380 #define lua_equal(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPEQ) 381 #define lua_lessthan(L,idx1,idx2) lua_compare(L,(idx1),(idx2),LUA_OPLT) 382 383 /* 384 @@ LUA_COMPAT_MODULE controls compatibility with previous 385 ** module functions 'module' (Lua) and 'luaL_register' (C). 386 */ 387 #define LUA_COMPAT_MODULE 388 389 #endif /* } */ 390 391 392 /* 393 @@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a 394 @@ a float mark ('.0'). 395 ** This macro is not on by default even in compatibility mode, 396 ** because this is not really an incompatibility. 397 */ 398 /* #define LUA_COMPAT_FLOATSTRING */ 399 400 /* }================================================================== */ 401 402 403 404 /* 405 ** {================================================================== 406 ** Configuration for Numbers. 407 ** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_* 408 ** satisfy your needs. 409 ** =================================================================== 410 */ 411 412 #ifndef _KERNEL 413 /* 414 @@ LUA_NUMBER is the floating-point type used by Lua. 415 @@ LUAI_UACNUMBER is the result of an 'usual argument conversion' 416 @@ over a floating number. 417 @@ l_mathlim(x) corrects limit name 'x' to the proper float type 418 ** by prefixing it with one of FLT/DBL/LDBL. 419 @@ LUA_NUMBER_FRMLEN is the length modifier for writing floats. 420 @@ LUA_NUMBER_FMT is the format for writing floats. 421 @@ lua_number2str converts a float to a string. 422 @@ l_mathop allows the addition of an 'l' or 'f' to all math operations. 423 @@ lua_str2number converts a decimal numeric string to a number. 424 */ 425 426 #if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT /* { single float */ 427 428 #define LUA_NUMBER float 429 430 #define l_mathlim(n) (FLT_##n) 431 432 #define LUAI_UACNUMBER double 433 434 #define LUA_NUMBER_FRMLEN "" 435 #define LUA_NUMBER_FMT "%.7g" 436 437 #define l_mathop(op) op##f 438 439 #define lua_str2number(s,p) strtof((s), (p)) 440 441 442 #elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE /* }{ long double */ 443 444 #define LUA_NUMBER long double 445 446 #define l_mathlim(n) (LDBL_##n) 447 448 #define LUAI_UACNUMBER long double 449 450 #define LUA_NUMBER_FRMLEN "L" 451 #define LUA_NUMBER_FMT "%.19Lg" 452 453 #define l_mathop(op) op##l 454 455 #define lua_str2number(s,p) strtold((s), (p)) 456 457 #elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE /* }{ double */ 458 459 #define LUA_NUMBER double 460 461 #define l_mathlim(n) (DBL_##n) 462 463 #define LUAI_UACNUMBER double 464 465 #define LUA_NUMBER_FRMLEN "" 466 #define LUA_NUMBER_FMT "%.14g" 467 468 #define l_mathop(op) op 469 470 #define lua_str2number(s,p) strtod((s), (p)) 471 472 #else /* }{ */ 473 474 #error "numeric float type not defined" 475 476 #endif /* } */ 477 478 479 #define l_floor(x) (l_mathop(floor)(x)) 480 481 #define lua_number2str(s,n) sprintf((s), LUA_NUMBER_FMT, (n)) 482 483 484 /* 485 @@ lua_numbertointeger converts a float number to an integer, or 486 ** returns 0 if float is not within the range of a lua_Integer. 487 ** (The range comparisons are tricky because of rounding. The tests 488 ** here assume a two-complement representation, where MININTEGER always 489 ** has an exact representation as a float; MAXINTEGER may not have one, 490 ** and therefore its conversion to float may have an ill-defined value.) 491 */ 492 #define lua_numbertointeger(n,p) \ 493 ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \ 494 (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \ 495 (*(p) = (LUA_INTEGER)(n), 1)) 496 497 #endif /*_KERNEL */ 498 499 500 /* 501 @@ LUA_INTEGER is the integer type used by Lua. 502 ** 503 @@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER. 504 ** 505 @@ LUAI_UACINT is the result of an 'usual argument conversion' 506 @@ over a lUA_INTEGER. 507 @@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers. 508 @@ LUA_INTEGER_FMT is the format for writing integers. 509 @@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER. 510 @@ LUA_MININTEGER is the minimum value for a LUA_INTEGER. 511 @@ lua_integer2str converts an integer to a string. 512 */ 513 514 515 /* The following definitions are good for most cases here */ 516 517 #define LUA_INTEGER_FMT "%" LUA_INTEGER_FRMLEN "d" 518 #define lua_integer2str(s,n) sprintf((s), LUA_INTEGER_FMT, (n)) 519 520 #define LUAI_UACINT LUA_INTEGER 521 522 /* 523 ** use LUAI_UACINT here to avoid problems with promotions (which 524 ** can turn a comparison between unsigneds into a signed comparison) 525 */ 526 #define LUA_UNSIGNED unsigned LUAI_UACINT 527 528 529 /* now the variable definitions */ 530 531 #if LUA_INT_TYPE == LUA_INT_INT /* { int */ 532 533 #define LUA_INTEGER int 534 #define LUA_INTEGER_FRMLEN "" 535 536 #define LUA_MAXINTEGER INT_MAX 537 #define LUA_MININTEGER INT_MIN 538 539 #elif LUA_INT_TYPE == LUA_INT_LONG /* }{ long */ 540 541 #define LUA_INTEGER long 542 #define LUA_INTEGER_FRMLEN "l" 543 544 #define LUA_MAXINTEGER LONG_MAX 545 #define LUA_MININTEGER LONG_MIN 546 547 #elif LUA_INT_TYPE == LUA_INT_LONGLONG /* }{ long long */ 548 549 #if defined(LLONG_MAX) /* { */ 550 /* use ISO C99 stuff */ 551 552 #define LUA_INTEGER long long 553 #define LUA_INTEGER_FRMLEN "ll" 554 555 #define LUA_MAXINTEGER LLONG_MAX 556 #define LUA_MININTEGER LLONG_MIN 557 558 #elif defined(LUA_USE_WINDOWS) /* }{ */ 559 /* in Windows, can use specific Windows types */ 560 561 #define LUA_INTEGER __int64 562 #define LUA_INTEGER_FRMLEN "I64" 563 564 #define LUA_MAXINTEGER _I64_MAX 565 #define LUA_MININTEGER _I64_MIN 566 567 #else /* }{ */ 568 569 #error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \ 570 or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)" 571 572 #endif /* } */ 573 574 #else /* }{ */ 575 576 #error "numeric integer type not defined" 577 578 #endif /* } */ 579 580 /* }================================================================== */ 581 582 583 /* 584 ** {================================================================== 585 ** Dependencies with C99 and other C details 586 ** =================================================================== 587 */ 588 589 /* 590 @@ lua_strx2number converts an hexadecimal numeric string to a number. 591 ** In C99, 'strtod' does that conversion. Otherwise, you can 592 ** leave 'lua_strx2number' undefined and Lua will provide its own 593 ** implementation. 594 */ 595 #if !defined(LUA_USE_C89) 596 #define lua_strx2number(s,p) lua_str2number(s,p) 597 #endif 598 599 600 /* 601 @@ lua_number2strx converts a float to an hexadecimal numeric string. 602 ** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that. 603 ** Otherwise, you can leave 'lua_number2strx' undefined and Lua will 604 ** provide its own implementation. 605 */ 606 #if !defined(LUA_USE_C89) 607 #define lua_number2strx(L,b,f,n) sprintf(b,f,n) 608 #endif 609 610 611 /* 612 ** 'strtof' and 'opf' variants for math functions are not valid in 613 ** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the 614 ** availability of these variants. ('math.h' is already included in 615 ** all files that use these macros.) 616 */ 617 #if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF)) 618 #undef l_mathop /* variants not available */ 619 #undef lua_str2number 620 #define l_mathop(op) (lua_Number)op /* no variant */ 621 #define lua_str2number(s,p) ((lua_Number)strtod((s), (p))) 622 #endif 623 624 625 /* 626 @@ LUA_KCONTEXT is the type of the context ('ctx') for continuation 627 ** functions. It must be a numerical type; Lua will use 'intptr_t' if 628 ** available, otherwise it will use 'ptrdiff_t' (the nearest thing to 629 ** 'intptr_t' in C89) 630 */ 631 #define LUA_KCONTEXT ptrdiff_t 632 633 #if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \ 634 __STDC_VERSION__ >= 199901L 635 #include <stdint.h> 636 #if defined(INTPTR_MAX) /* even in C99 this type is optional */ 637 #undef LUA_KCONTEXT 638 #define LUA_KCONTEXT intptr_t 639 #endif 640 #endif 641 642 643 /* 644 @@ lua_getlocaledecpoint gets the locale "radix character" (decimal point). 645 ** Change that if you do not want to use C locales. (Code using this 646 ** macro must include header 'locale.h'.) 647 */ 648 #if !defined(lua_getlocaledecpoint) 649 #define lua_getlocaledecpoint() (localeconv()->decimal_point[0]) 650 #endif 651 652 /* }================================================================== */ 653 654 655 /* 656 ** {================================================================== 657 ** Language Variations 658 ** ===================================================================== 659 */ 660 661 /* 662 @@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some 663 ** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from 664 ** numbers to strings. Define LUA_NOCVTS2N to turn off automatic 665 ** coercion from strings to numbers. 666 */ 667 /* #define LUA_NOCVTN2S */ 668 /* #define LUA_NOCVTS2N */ 669 670 671 /* 672 @@ LUA_USE_APICHECK turns on several consistency checks on the C API. 673 ** Define it as a help when debugging C code. 674 */ 675 #if defined(LUA_USE_APICHECK) 676 #include <assert.h> 677 #define luai_apicheck(l,e) assert(e) 678 #endif 679 680 /* }================================================================== */ 681 682 683 /* 684 ** {================================================================== 685 ** Macros that affect the API and must be stable (that is, must be the 686 ** same when you compile Lua and when you compile code that links to 687 ** Lua). You probably do not want/need to change them. 688 ** ===================================================================== 689 */ 690 691 /* 692 @@ LUAI_MAXSTACK limits the size of the Lua stack. 693 ** CHANGE it if you need a different limit. This limit is arbitrary; 694 ** its only purpose is to stop Lua from consuming unlimited stack 695 ** space (and to reserve some numbers for pseudo-indices). 696 */ 697 #if LUAI_BITSINT >= 32 698 #define LUAI_MAXSTACK 1000000 699 #else 700 #define LUAI_MAXSTACK 15000 701 #endif 702 703 704 /* 705 @@ LUA_EXTRASPACE defines the size of a raw memory area associated with 706 ** a Lua state with very fast access. 707 ** CHANGE it if you need a different size. 708 */ 709 #define LUA_EXTRASPACE (sizeof(void *)) 710 711 712 /* 713 @@ LUA_IDSIZE gives the maximum size for the description of the source 714 @@ of a function in debug information. 715 ** CHANGE it if you want a different size. 716 */ 717 #define LUA_IDSIZE 60 718 719 720 /* 721 @@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system. 722 ** CHANGE it if it uses too much C-stack space. (For long double, 723 ** 'string.format("%.99f", 1e4932)' needs ~5030 bytes, so a 724 ** smaller buffer would force a memory allocation for each call to 725 ** 'string.format'.) 726 */ 727 #if defined(LUA_FLOAT_LONGDOUBLE) 728 #define LUAL_BUFFERSIZE 8192 729 #else 730 #define LUAL_BUFFERSIZE ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer))) 731 #endif 732 733 /* }================================================================== */ 734 735 736 /* 737 @@ LUA_QL describes how error messages quote program elements. 738 ** Lua does not use these macros anymore; they are here for 739 ** compatibility only. 740 */ 741 #define LUA_QL(x) "'" x "'" 742 #define LUA_QS LUA_QL("%s") 743 744 745 746 747 /* =================================================================== */ 748 749 /* 750 ** Local configuration. You can use this space to add your redefinitions 751 ** without modifying the main part of the file. 752 */ 753 754 #if defined(__NetBSD__) || defined(__minix) 755 756 /* Integer types */ 757 #undef LUA_INTEGER 758 #undef LUA_INTEGER_FRMLEN 759 #undef LUA_UNSIGNED 760 #undef LUA_MAXUNSIGNED 761 #undef LUA_MAXINTEGER 762 #undef LUA_MININTEGER 763 764 #define LUA_INTEGER intmax_t 765 #define LUA_INTEGER_FRMLEN "j" 766 #define LUA_UNSIGNED uintmax_t 767 #define LUA_MAXUNSIGNED UINTMAX_MAX 768 #define LUA_MAXINTEGER INTMAX_MAX 769 #define LUA_MININTEGER INTMAX_MIN 770 771 /* Path */ 772 #undef LUA_ROOT 773 #undef LUA_PATH_DEFAULT 774 #undef LUA_CPATH_DEFAULT 775 776 #define LUA_ROOT "/usr/" 777 #define LUA_PATH_DEFAULT \ 778 LUA_LDIR"?.lua;" LUA_LDIR"?/init.lua;" \ 779 LUA_CDIR"?.lua;" LUA_CDIR"?/init.lua" 780 #define LUA_CPATH_DEFAULT \ 781 LUA_CDIR"?.so;" LUA_CDIR"loadall.so" 782 783 #ifndef _KERNEL 784 785 #include <stdint.h> 786 787 #else /* _KERNEL */ 788 789 #define LUA_NUMBER LUA_INTEGER 790 #define LUA_NUMBER_FMT LUA_INTEGER_FMT 791 792 /* setjmp.h */ 793 #define LUAI_THROW(L,c) longjmp(&((c)->b)) 794 #define LUAI_TRY(L,c,a) if (setjmp(&((c)->b)) == 0) { a } 795 #define luai_jmpbuf label_t 796 797 /* time.h */ 798 #include <sys/time.h> 799 #define time(p) (time_uptime) 800 801 /* stdio.h */ 802 #define lua_writestring(s,l) printf("%s", (s)) 803 #define lua_writeline() printf("\n") 804 805 #define sprintf(s,fmt,...) snprintf(s, sizeof(s), fmt, __VA_ARGS__) 806 807 /* string.h */ 808 #define strcoll strcmp 809 810 /* stdlib.h */ 811 #define abort() panic("Lua has aborted!") 812 813 #endif /* _KERNEL */ 814 815 #endif /* __NetBSD__ || __minix */ 816 817 #endif 818 819