1 /* A GNU-like <string.h>. 2 3 Copyright (C) 1995-1996, 2001-2019 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3, or (at your option) 8 any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, see <https://www.gnu.org/licenses/>. */ 17 18 #if __GNUC__ >= 3 19 @PRAGMA_SYSTEM_HEADER@ 20 #endif 21 @PRAGMA_COLUMNS@ 22 23 #if defined _GL_ALREADY_INCLUDING_STRING_H 24 /* Special invocation convention: 25 - On OS X/NetBSD we have a sequence of nested includes 26 <string.h> -> <strings.h> -> "string.h" 27 In this situation system _chk variants due to -D_FORTIFY_SOURCE 28 might be used after any replacements defined here. */ 29 30 #@INCLUDE_NEXT@ @NEXT_STRING_H@ 31 32 #else 33 /* Normal invocation convention. */ 34 35 #ifndef _@GUARD_PREFIX@_STRING_H 36 37 #define _GL_ALREADY_INCLUDING_STRING_H 38 39 /* The include_next requires a split double-inclusion guard. */ 40 #@INCLUDE_NEXT@ @NEXT_STRING_H@ 41 42 #undef _GL_ALREADY_INCLUDING_STRING_H 43 44 #ifndef _@GUARD_PREFIX@_STRING_H 45 #define _@GUARD_PREFIX@_STRING_H 46 47 /* NetBSD 5.0 mis-defines NULL. */ 48 #include <stddef.h> 49 50 /* MirBSD defines mbslen as a macro. */ 51 #if @GNULIB_MBSLEN@ && defined __MirBSD__ 52 # include <wchar.h> 53 #endif 54 55 /* The __attribute__ feature is available in gcc versions 2.5 and later. 56 The attribute __pure__ was added in gcc 2.96. */ 57 #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) 58 # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) 59 #else 60 # define _GL_ATTRIBUTE_PURE /* empty */ 61 #endif 62 63 /* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>. */ 64 /* But in any case avoid namespace pollution on glibc systems. */ 65 #if (@GNULIB_STRSIGNAL@ || defined GNULIB_POSIXCHECK) && defined __NetBSD__ \ 66 && ! defined __GLIBC__ 67 # include <unistd.h> 68 #endif 69 70 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 71 72 /* The definition of _GL_ARG_NONNULL is copied here. */ 73 74 /* The definition of _GL_WARN_ON_USE is copied here. */ 75 76 77 /* Clear a block of memory. The compiler will not delete a call to 78 this function, even if the block is dead after the call. */ 79 #if @GNULIB_EXPLICIT_BZERO@ 80 # if ! @HAVE_EXPLICIT_BZERO@ 81 _GL_FUNCDECL_SYS (explicit_bzero, void, 82 (void *__dest, size_t __n) _GL_ARG_NONNULL ((1))); 83 # endif 84 _GL_CXXALIAS_SYS (explicit_bzero, void, (void *__dest, size_t __n)); 85 _GL_CXXALIASWARN (explicit_bzero); 86 #elif defined GNULIB_POSIXCHECK 87 # undef explicit_bzero 88 # if HAVE_RAW_DECL_EXPLICIT_BZERO 89 _GL_WARN_ON_USE (explicit_bzero, "explicit_bzero is unportable - " 90 "use gnulib module explicit_bzero for portability"); 91 # endif 92 #endif 93 94 /* Find the index of the least-significant set bit. */ 95 #if @GNULIB_FFSL@ 96 # if !@HAVE_FFSL@ 97 _GL_FUNCDECL_SYS (ffsl, int, (long int i)); 98 # endif 99 _GL_CXXALIAS_SYS (ffsl, int, (long int i)); 100 _GL_CXXALIASWARN (ffsl); 101 #elif defined GNULIB_POSIXCHECK 102 # undef ffsl 103 # if HAVE_RAW_DECL_FFSL 104 _GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module"); 105 # endif 106 #endif 107 108 109 /* Find the index of the least-significant set bit. */ 110 #if @GNULIB_FFSLL@ 111 # if !@HAVE_FFSLL@ 112 _GL_FUNCDECL_SYS (ffsll, int, (long long int i)); 113 # endif 114 _GL_CXXALIAS_SYS (ffsll, int, (long long int i)); 115 _GL_CXXALIASWARN (ffsll); 116 #elif defined GNULIB_POSIXCHECK 117 # undef ffsll 118 # if HAVE_RAW_DECL_FFSLL 119 _GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module"); 120 # endif 121 #endif 122 123 124 /* Return the first instance of C within N bytes of S, or NULL. */ 125 #if @GNULIB_MEMCHR@ 126 # if @REPLACE_MEMCHR@ 127 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 128 # define memchr rpl_memchr 129 # endif 130 _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) 131 _GL_ATTRIBUTE_PURE 132 _GL_ARG_NONNULL ((1))); 133 _GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n)); 134 # else 135 # if ! @HAVE_MEMCHR@ 136 _GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n) 137 _GL_ATTRIBUTE_PURE 138 _GL_ARG_NONNULL ((1))); 139 # endif 140 /* On some systems, this function is defined as an overloaded function: 141 extern "C" { const void * std::memchr (const void *, int, size_t); } 142 extern "C++" { void * std::memchr (void *, int, size_t); } */ 143 _GL_CXXALIAS_SYS_CAST2 (memchr, 144 void *, (void const *__s, int __c, size_t __n), 145 void const *, (void const *__s, int __c, size_t __n)); 146 # endif 147 # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 148 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 149 _GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n)); 150 _GL_CXXALIASWARN1 (memchr, void const *, 151 (void const *__s, int __c, size_t __n)); 152 # else 153 _GL_CXXALIASWARN (memchr); 154 # endif 155 #elif defined GNULIB_POSIXCHECK 156 # undef memchr 157 /* Assume memchr is always declared. */ 158 _GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - " 159 "use gnulib module memchr for portability" ); 160 #endif 161 162 /* Return the first occurrence of NEEDLE in HAYSTACK. */ 163 #if @GNULIB_MEMMEM@ 164 # if @REPLACE_MEMMEM@ 165 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 166 # define memmem rpl_memmem 167 # endif 168 _GL_FUNCDECL_RPL (memmem, void *, 169 (void const *__haystack, size_t __haystack_len, 170 void const *__needle, size_t __needle_len) 171 _GL_ATTRIBUTE_PURE 172 _GL_ARG_NONNULL ((1, 3))); 173 _GL_CXXALIAS_RPL (memmem, void *, 174 (void const *__haystack, size_t __haystack_len, 175 void const *__needle, size_t __needle_len)); 176 # else 177 # if ! @HAVE_DECL_MEMMEM@ 178 _GL_FUNCDECL_SYS (memmem, void *, 179 (void const *__haystack, size_t __haystack_len, 180 void const *__needle, size_t __needle_len) 181 _GL_ATTRIBUTE_PURE 182 _GL_ARG_NONNULL ((1, 3))); 183 # endif 184 _GL_CXXALIAS_SYS (memmem, void *, 185 (void const *__haystack, size_t __haystack_len, 186 void const *__needle, size_t __needle_len)); 187 # endif 188 _GL_CXXALIASWARN (memmem); 189 #elif defined GNULIB_POSIXCHECK 190 # undef memmem 191 # if HAVE_RAW_DECL_MEMMEM 192 _GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - " 193 "use gnulib module memmem-simple for portability, " 194 "and module memmem for speed" ); 195 # endif 196 #endif 197 198 /* Copy N bytes of SRC to DEST, return pointer to bytes after the 199 last written byte. */ 200 #if @GNULIB_MEMPCPY@ 201 # if ! @HAVE_MEMPCPY@ 202 _GL_FUNCDECL_SYS (mempcpy, void *, 203 (void *restrict __dest, void const *restrict __src, 204 size_t __n) 205 _GL_ARG_NONNULL ((1, 2))); 206 # endif 207 _GL_CXXALIAS_SYS (mempcpy, void *, 208 (void *restrict __dest, void const *restrict __src, 209 size_t __n)); 210 _GL_CXXALIASWARN (mempcpy); 211 #elif defined GNULIB_POSIXCHECK 212 # undef mempcpy 213 # if HAVE_RAW_DECL_MEMPCPY 214 _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " 215 "use gnulib module mempcpy for portability"); 216 # endif 217 #endif 218 219 /* Search backwards through a block for a byte (specified as an int). */ 220 #if @GNULIB_MEMRCHR@ 221 # if ! @HAVE_DECL_MEMRCHR@ 222 _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) 223 _GL_ATTRIBUTE_PURE 224 _GL_ARG_NONNULL ((1))); 225 # endif 226 /* On some systems, this function is defined as an overloaded function: 227 extern "C++" { const void * std::memrchr (const void *, int, size_t); } 228 extern "C++" { void * std::memrchr (void *, int, size_t); } */ 229 _GL_CXXALIAS_SYS_CAST2 (memrchr, 230 void *, (void const *, int, size_t), 231 void const *, (void const *, int, size_t)); 232 # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 233 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 234 _GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t)); 235 _GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t)); 236 # else 237 _GL_CXXALIASWARN (memrchr); 238 # endif 239 #elif defined GNULIB_POSIXCHECK 240 # undef memrchr 241 # if HAVE_RAW_DECL_MEMRCHR 242 _GL_WARN_ON_USE (memrchr, "memrchr is unportable - " 243 "use gnulib module memrchr for portability"); 244 # endif 245 #endif 246 247 /* Find the first occurrence of C in S. More efficient than 248 memchr(S,C,N), at the expense of undefined behavior if C does not 249 occur within N bytes. */ 250 #if @GNULIB_RAWMEMCHR@ 251 # if ! @HAVE_RAWMEMCHR@ 252 _GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) 253 _GL_ATTRIBUTE_PURE 254 _GL_ARG_NONNULL ((1))); 255 # endif 256 /* On some systems, this function is defined as an overloaded function: 257 extern "C++" { const void * std::rawmemchr (const void *, int); } 258 extern "C++" { void * std::rawmemchr (void *, int); } */ 259 _GL_CXXALIAS_SYS_CAST2 (rawmemchr, 260 void *, (void const *__s, int __c_in), 261 void const *, (void const *__s, int __c_in)); 262 # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 263 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 264 _GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in)); 265 _GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in)); 266 # else 267 _GL_CXXALIASWARN (rawmemchr); 268 # endif 269 #elif defined GNULIB_POSIXCHECK 270 # undef rawmemchr 271 # if HAVE_RAW_DECL_RAWMEMCHR 272 _GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - " 273 "use gnulib module rawmemchr for portability"); 274 # endif 275 #endif 276 277 /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */ 278 #if @GNULIB_STPCPY@ 279 # if ! @HAVE_STPCPY@ 280 _GL_FUNCDECL_SYS (stpcpy, char *, 281 (char *restrict __dst, char const *restrict __src) 282 _GL_ARG_NONNULL ((1, 2))); 283 # endif 284 _GL_CXXALIAS_SYS (stpcpy, char *, 285 (char *restrict __dst, char const *restrict __src)); 286 _GL_CXXALIASWARN (stpcpy); 287 #elif defined GNULIB_POSIXCHECK 288 # undef stpcpy 289 # if HAVE_RAW_DECL_STPCPY 290 _GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " 291 "use gnulib module stpcpy for portability"); 292 # endif 293 #endif 294 295 /* Copy no more than N bytes of SRC to DST, returning a pointer past the 296 last non-NUL byte written into DST. */ 297 #if @GNULIB_STPNCPY@ 298 # if @REPLACE_STPNCPY@ 299 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 300 # undef stpncpy 301 # define stpncpy rpl_stpncpy 302 # endif 303 _GL_FUNCDECL_RPL (stpncpy, char *, 304 (char *restrict __dst, char const *restrict __src, 305 size_t __n) 306 _GL_ARG_NONNULL ((1, 2))); 307 _GL_CXXALIAS_RPL (stpncpy, char *, 308 (char *restrict __dst, char const *restrict __src, 309 size_t __n)); 310 # else 311 # if ! @HAVE_STPNCPY@ 312 _GL_FUNCDECL_SYS (stpncpy, char *, 313 (char *restrict __dst, char const *restrict __src, 314 size_t __n) 315 _GL_ARG_NONNULL ((1, 2))); 316 # endif 317 _GL_CXXALIAS_SYS (stpncpy, char *, 318 (char *restrict __dst, char const *restrict __src, 319 size_t __n)); 320 # endif 321 _GL_CXXALIASWARN (stpncpy); 322 #elif defined GNULIB_POSIXCHECK 323 # undef stpncpy 324 # if HAVE_RAW_DECL_STPNCPY 325 _GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " 326 "use gnulib module stpncpy for portability"); 327 # endif 328 #endif 329 330 #if defined GNULIB_POSIXCHECK 331 /* strchr() does not work with multibyte strings if the locale encoding is 332 GB18030 and the character to be searched is a digit. */ 333 # undef strchr 334 /* Assume strchr is always declared. */ 335 _GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings " 336 "in some multibyte locales - " 337 "use mbschr if you care about internationalization"); 338 #endif 339 340 /* Find the first occurrence of C in S or the final NUL byte. */ 341 #if @GNULIB_STRCHRNUL@ 342 # if @REPLACE_STRCHRNUL@ 343 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 344 # define strchrnul rpl_strchrnul 345 # endif 346 _GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in) 347 _GL_ATTRIBUTE_PURE 348 _GL_ARG_NONNULL ((1))); 349 _GL_CXXALIAS_RPL (strchrnul, char *, 350 (const char *str, int ch)); 351 # else 352 # if ! @HAVE_STRCHRNUL@ 353 _GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in) 354 _GL_ATTRIBUTE_PURE 355 _GL_ARG_NONNULL ((1))); 356 # endif 357 /* On some systems, this function is defined as an overloaded function: 358 extern "C++" { const char * std::strchrnul (const char *, int); } 359 extern "C++" { char * std::strchrnul (char *, int); } */ 360 _GL_CXXALIAS_SYS_CAST2 (strchrnul, 361 char *, (char const *__s, int __c_in), 362 char const *, (char const *__s, int __c_in)); 363 # endif 364 # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 365 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 366 _GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in)); 367 _GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in)); 368 # else 369 _GL_CXXALIASWARN (strchrnul); 370 # endif 371 #elif defined GNULIB_POSIXCHECK 372 # undef strchrnul 373 # if HAVE_RAW_DECL_STRCHRNUL 374 _GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " 375 "use gnulib module strchrnul for portability"); 376 # endif 377 #endif 378 379 /* Duplicate S, returning an identical malloc'd string. */ 380 #if @GNULIB_STRDUP@ 381 # if @REPLACE_STRDUP@ 382 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 383 # undef strdup 384 # define strdup rpl_strdup 385 # endif 386 _GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); 387 _GL_CXXALIAS_RPL (strdup, char *, (char const *__s)); 388 # else 389 # if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup 390 /* strdup exists as a function and as a macro. Get rid of the macro. */ 391 # undef strdup 392 # endif 393 # if !(@HAVE_DECL_STRDUP@ || defined strdup) 394 _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); 395 # endif 396 _GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); 397 # endif 398 _GL_CXXALIASWARN (strdup); 399 #elif defined GNULIB_POSIXCHECK 400 # undef strdup 401 # if HAVE_RAW_DECL_STRDUP 402 _GL_WARN_ON_USE (strdup, "strdup is unportable - " 403 "use gnulib module strdup for portability"); 404 # endif 405 #endif 406 407 /* Append no more than N characters from SRC onto DEST. */ 408 #if @GNULIB_STRNCAT@ 409 # if @REPLACE_STRNCAT@ 410 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 411 # undef strncat 412 # define strncat rpl_strncat 413 # endif 414 _GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n) 415 _GL_ARG_NONNULL ((1, 2))); 416 _GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n)); 417 # else 418 _GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n)); 419 # endif 420 _GL_CXXALIASWARN (strncat); 421 #elif defined GNULIB_POSIXCHECK 422 # undef strncat 423 # if HAVE_RAW_DECL_STRNCAT 424 _GL_WARN_ON_USE (strncat, "strncat is unportable - " 425 "use gnulib module strncat for portability"); 426 # endif 427 #endif 428 429 /* Return a newly allocated copy of at most N bytes of STRING. */ 430 #if @GNULIB_STRNDUP@ 431 # if @REPLACE_STRNDUP@ 432 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 433 # undef strndup 434 # define strndup rpl_strndup 435 # endif 436 _GL_FUNCDECL_RPL (strndup, char *, (char const *__s, size_t __n) 437 _GL_ARG_NONNULL ((1))); 438 _GL_CXXALIAS_RPL (strndup, char *, (char const *__s, size_t __n)); 439 # else 440 # if ! @HAVE_DECL_STRNDUP@ 441 _GL_FUNCDECL_SYS (strndup, char *, (char const *__s, size_t __n) 442 _GL_ARG_NONNULL ((1))); 443 # endif 444 _GL_CXXALIAS_SYS (strndup, char *, (char const *__s, size_t __n)); 445 # endif 446 _GL_CXXALIASWARN (strndup); 447 #elif defined GNULIB_POSIXCHECK 448 # undef strndup 449 # if HAVE_RAW_DECL_STRNDUP 450 _GL_WARN_ON_USE (strndup, "strndup is unportable - " 451 "use gnulib module strndup for portability"); 452 # endif 453 #endif 454 455 /* Find the length (number of bytes) of STRING, but scan at most 456 MAXLEN bytes. If no '\0' terminator is found in that many bytes, 457 return MAXLEN. */ 458 #if @GNULIB_STRNLEN@ 459 # if @REPLACE_STRNLEN@ 460 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 461 # undef strnlen 462 # define strnlen rpl_strnlen 463 # endif 464 _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__s, size_t __maxlen) 465 _GL_ATTRIBUTE_PURE 466 _GL_ARG_NONNULL ((1))); 467 _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__s, size_t __maxlen)); 468 # else 469 # if ! @HAVE_DECL_STRNLEN@ 470 _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__s, size_t __maxlen) 471 _GL_ATTRIBUTE_PURE 472 _GL_ARG_NONNULL ((1))); 473 # endif 474 _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__s, size_t __maxlen)); 475 # endif 476 _GL_CXXALIASWARN (strnlen); 477 #elif defined GNULIB_POSIXCHECK 478 # undef strnlen 479 # if HAVE_RAW_DECL_STRNLEN 480 _GL_WARN_ON_USE (strnlen, "strnlen is unportable - " 481 "use gnulib module strnlen for portability"); 482 # endif 483 #endif 484 485 #if defined GNULIB_POSIXCHECK 486 /* strcspn() assumes the second argument is a list of single-byte characters. 487 Even in this simple case, it does not work with multibyte strings if the 488 locale encoding is GB18030 and one of the characters to be searched is a 489 digit. */ 490 # undef strcspn 491 /* Assume strcspn is always declared. */ 492 _GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " 493 "in multibyte locales - " 494 "use mbscspn if you care about internationalization"); 495 #endif 496 497 /* Find the first occurrence in S of any character in ACCEPT. */ 498 #if @GNULIB_STRPBRK@ 499 # if ! @HAVE_STRPBRK@ 500 _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) 501 _GL_ATTRIBUTE_PURE 502 _GL_ARG_NONNULL ((1, 2))); 503 # endif 504 /* On some systems, this function is defined as an overloaded function: 505 extern "C" { const char * strpbrk (const char *, const char *); } 506 extern "C++" { char * strpbrk (char *, const char *); } */ 507 _GL_CXXALIAS_SYS_CAST2 (strpbrk, 508 char *, (char const *__s, char const *__accept), 509 const char *, (char const *__s, char const *__accept)); 510 # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 511 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 512 _GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); 513 _GL_CXXALIASWARN1 (strpbrk, char const *, 514 (char const *__s, char const *__accept)); 515 # else 516 _GL_CXXALIASWARN (strpbrk); 517 # endif 518 # if defined GNULIB_POSIXCHECK 519 /* strpbrk() assumes the second argument is a list of single-byte characters. 520 Even in this simple case, it does not work with multibyte strings if the 521 locale encoding is GB18030 and one of the characters to be searched is a 522 digit. */ 523 # undef strpbrk 524 _GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings " 525 "in multibyte locales - " 526 "use mbspbrk if you care about internationalization"); 527 # endif 528 #elif defined GNULIB_POSIXCHECK 529 # undef strpbrk 530 # if HAVE_RAW_DECL_STRPBRK 531 _GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - " 532 "use gnulib module strpbrk for portability"); 533 # endif 534 #endif 535 536 #if defined GNULIB_POSIXCHECK 537 /* strspn() assumes the second argument is a list of single-byte characters. 538 Even in this simple case, it cannot work with multibyte strings. */ 539 # undef strspn 540 /* Assume strspn is always declared. */ 541 _GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings " 542 "in multibyte locales - " 543 "use mbsspn if you care about internationalization"); 544 #endif 545 546 #if defined GNULIB_POSIXCHECK 547 /* strrchr() does not work with multibyte strings if the locale encoding is 548 GB18030 and the character to be searched is a digit. */ 549 # undef strrchr 550 /* Assume strrchr is always declared. */ 551 _GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings " 552 "in some multibyte locales - " 553 "use mbsrchr if you care about internationalization"); 554 #endif 555 556 /* Search the next delimiter (char listed in DELIM) starting at *STRINGP. 557 If one is found, overwrite it with a NUL, and advance *STRINGP 558 to point to the next char after it. Otherwise, set *STRINGP to NULL. 559 If *STRINGP was already NULL, nothing happens. 560 Return the old value of *STRINGP. 561 562 This is a variant of strtok() that is multithread-safe and supports 563 empty fields. 564 565 Caveat: It modifies the original string. 566 Caveat: These functions cannot be used on constant strings. 567 Caveat: The identity of the delimiting character is lost. 568 Caveat: It doesn't work with multibyte strings unless all of the delimiter 569 characters are ASCII characters < 0x30. 570 571 See also strtok_r(). */ 572 #if @GNULIB_STRSEP@ 573 # if ! @HAVE_STRSEP@ 574 _GL_FUNCDECL_SYS (strsep, char *, 575 (char **restrict __stringp, char const *restrict __delim) 576 _GL_ARG_NONNULL ((1, 2))); 577 # endif 578 _GL_CXXALIAS_SYS (strsep, char *, 579 (char **restrict __stringp, char const *restrict __delim)); 580 _GL_CXXALIASWARN (strsep); 581 # if defined GNULIB_POSIXCHECK 582 # undef strsep 583 _GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings " 584 "in multibyte locales - " 585 "use mbssep if you care about internationalization"); 586 # endif 587 #elif defined GNULIB_POSIXCHECK 588 # undef strsep 589 # if HAVE_RAW_DECL_STRSEP 590 _GL_WARN_ON_USE (strsep, "strsep is unportable - " 591 "use gnulib module strsep for portability"); 592 # endif 593 #endif 594 595 #if @GNULIB_STRSTR@ 596 # if @REPLACE_STRSTR@ 597 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 598 # define strstr rpl_strstr 599 # endif 600 _GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) 601 _GL_ATTRIBUTE_PURE 602 _GL_ARG_NONNULL ((1, 2))); 603 _GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); 604 # else 605 /* On some systems, this function is defined as an overloaded function: 606 extern "C++" { const char * strstr (const char *, const char *); } 607 extern "C++" { char * strstr (char *, const char *); } */ 608 _GL_CXXALIAS_SYS_CAST2 (strstr, 609 char *, (const char *haystack, const char *needle), 610 const char *, (const char *haystack, const char *needle)); 611 # endif 612 # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 613 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 614 _GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); 615 _GL_CXXALIASWARN1 (strstr, const char *, 616 (const char *haystack, const char *needle)); 617 # else 618 _GL_CXXALIASWARN (strstr); 619 # endif 620 #elif defined GNULIB_POSIXCHECK 621 /* strstr() does not work with multibyte strings if the locale encoding is 622 different from UTF-8: 623 POSIX says that it operates on "strings", and "string" in POSIX is defined 624 as a sequence of bytes, not of characters. */ 625 # undef strstr 626 /* Assume strstr is always declared. */ 627 _GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " 628 "work correctly on character strings in most " 629 "multibyte locales - " 630 "use mbsstr if you care about internationalization, " 631 "or use strstr if you care about speed"); 632 #endif 633 634 /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive 635 comparison. */ 636 #if @GNULIB_STRCASESTR@ 637 # if @REPLACE_STRCASESTR@ 638 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 639 # define strcasestr rpl_strcasestr 640 # endif 641 _GL_FUNCDECL_RPL (strcasestr, char *, 642 (const char *haystack, const char *needle) 643 _GL_ATTRIBUTE_PURE 644 _GL_ARG_NONNULL ((1, 2))); 645 _GL_CXXALIAS_RPL (strcasestr, char *, 646 (const char *haystack, const char *needle)); 647 # else 648 # if ! @HAVE_STRCASESTR@ 649 _GL_FUNCDECL_SYS (strcasestr, char *, 650 (const char *haystack, const char *needle) 651 _GL_ATTRIBUTE_PURE 652 _GL_ARG_NONNULL ((1, 2))); 653 # endif 654 /* On some systems, this function is defined as an overloaded function: 655 extern "C++" { const char * strcasestr (const char *, const char *); } 656 extern "C++" { char * strcasestr (char *, const char *); } */ 657 _GL_CXXALIAS_SYS_CAST2 (strcasestr, 658 char *, (const char *haystack, const char *needle), 659 const char *, (const char *haystack, const char *needle)); 660 # endif 661 # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 662 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 663 _GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle)); 664 _GL_CXXALIASWARN1 (strcasestr, const char *, 665 (const char *haystack, const char *needle)); 666 # else 667 _GL_CXXALIASWARN (strcasestr); 668 # endif 669 #elif defined GNULIB_POSIXCHECK 670 /* strcasestr() does not work with multibyte strings: 671 It is a glibc extension, and glibc implements it only for unibyte 672 locales. */ 673 # undef strcasestr 674 # if HAVE_RAW_DECL_STRCASESTR 675 _GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character " 676 "strings in multibyte locales - " 677 "use mbscasestr if you care about " 678 "internationalization, or use c-strcasestr if you want " 679 "a locale independent function"); 680 # endif 681 #endif 682 683 /* Parse S into tokens separated by characters in DELIM. 684 If S is NULL, the saved pointer in SAVE_PTR is used as 685 the next starting point. For example: 686 char s[] = "-abc-=-def"; 687 char *sp; 688 x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" 689 x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL 690 x = strtok_r(NULL, "=", &sp); // x = NULL 691 // s = "abc\0-def\0" 692 693 This is a variant of strtok() that is multithread-safe. 694 695 For the POSIX documentation for this function, see: 696 http://www.opengroup.org/susv3xsh/strtok.html 697 698 Caveat: It modifies the original string. 699 Caveat: These functions cannot be used on constant strings. 700 Caveat: The identity of the delimiting character is lost. 701 Caveat: It doesn't work with multibyte strings unless all of the delimiter 702 characters are ASCII characters < 0x30. 703 704 See also strsep(). */ 705 #if @GNULIB_STRTOK_R@ 706 # if @REPLACE_STRTOK_R@ 707 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 708 # undef strtok_r 709 # define strtok_r rpl_strtok_r 710 # endif 711 _GL_FUNCDECL_RPL (strtok_r, char *, 712 (char *restrict s, char const *restrict delim, 713 char **restrict save_ptr) 714 _GL_ARG_NONNULL ((2, 3))); 715 _GL_CXXALIAS_RPL (strtok_r, char *, 716 (char *restrict s, char const *restrict delim, 717 char **restrict save_ptr)); 718 # else 719 # if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK 720 # undef strtok_r 721 # endif 722 # if ! @HAVE_DECL_STRTOK_R@ 723 _GL_FUNCDECL_SYS (strtok_r, char *, 724 (char *restrict s, char const *restrict delim, 725 char **restrict save_ptr) 726 _GL_ARG_NONNULL ((2, 3))); 727 # endif 728 _GL_CXXALIAS_SYS (strtok_r, char *, 729 (char *restrict s, char const *restrict delim, 730 char **restrict save_ptr)); 731 # endif 732 _GL_CXXALIASWARN (strtok_r); 733 # if defined GNULIB_POSIXCHECK 734 _GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character " 735 "strings in multibyte locales - " 736 "use mbstok_r if you care about internationalization"); 737 # endif 738 #elif defined GNULIB_POSIXCHECK 739 # undef strtok_r 740 # if HAVE_RAW_DECL_STRTOK_R 741 _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " 742 "use gnulib module strtok_r for portability"); 743 # endif 744 #endif 745 746 747 /* The following functions are not specified by POSIX. They are gnulib 748 extensions. */ 749 750 #if @GNULIB_MBSLEN@ 751 /* Return the number of multibyte characters in the character string STRING. 752 This considers multibyte characters, unlike strlen, which counts bytes. */ 753 # ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */ 754 # undef mbslen 755 # endif 756 # if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */ 757 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 758 # define mbslen rpl_mbslen 759 # endif 760 _GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) 761 _GL_ATTRIBUTE_PURE 762 _GL_ARG_NONNULL ((1))); 763 _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); 764 # else 765 _GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) 766 _GL_ATTRIBUTE_PURE 767 _GL_ARG_NONNULL ((1))); 768 _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); 769 # endif 770 _GL_CXXALIASWARN (mbslen); 771 #endif 772 773 #if @GNULIB_MBSNLEN@ 774 /* Return the number of multibyte characters in the character string starting 775 at STRING and ending at STRING + LEN. */ 776 _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) 777 _GL_ATTRIBUTE_PURE 778 _GL_ARG_NONNULL ((1)); 779 #endif 780 781 #if @GNULIB_MBSCHR@ 782 /* Locate the first single-byte character C in the character string STRING, 783 and return a pointer to it. Return NULL if C is not found in STRING. 784 Unlike strchr(), this function works correctly in multibyte locales with 785 encodings such as GB18030. */ 786 # if defined __hpux 787 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 788 # define mbschr rpl_mbschr /* avoid collision with HP-UX function */ 789 # endif 790 _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c) 791 _GL_ATTRIBUTE_PURE 792 _GL_ARG_NONNULL ((1))); 793 _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c)); 794 # else 795 _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c) 796 _GL_ATTRIBUTE_PURE 797 _GL_ARG_NONNULL ((1))); 798 _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c)); 799 # endif 800 _GL_CXXALIASWARN (mbschr); 801 #endif 802 803 #if @GNULIB_MBSRCHR@ 804 /* Locate the last single-byte character C in the character string STRING, 805 and return a pointer to it. Return NULL if C is not found in STRING. 806 Unlike strrchr(), this function works correctly in multibyte locales with 807 encodings such as GB18030. */ 808 # if defined __hpux || defined __INTERIX 809 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 810 # define mbsrchr rpl_mbsrchr /* avoid collision with system function */ 811 # endif 812 _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c) 813 _GL_ATTRIBUTE_PURE 814 _GL_ARG_NONNULL ((1))); 815 _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c)); 816 # else 817 _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c) 818 _GL_ATTRIBUTE_PURE 819 _GL_ARG_NONNULL ((1))); 820 _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c)); 821 # endif 822 _GL_CXXALIASWARN (mbsrchr); 823 #endif 824 825 #if @GNULIB_MBSSTR@ 826 /* Find the first occurrence of the character string NEEDLE in the character 827 string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK. 828 Unlike strstr(), this function works correctly in multibyte locales with 829 encodings different from UTF-8. */ 830 _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) 831 _GL_ATTRIBUTE_PURE 832 _GL_ARG_NONNULL ((1, 2)); 833 #endif 834 835 #if @GNULIB_MBSCASECMP@ 836 /* Compare the character strings S1 and S2, ignoring case, returning less than, 837 equal to or greater than zero if S1 is lexicographically less than, equal to 838 or greater than S2. 839 Note: This function may, in multibyte locales, return 0 for strings of 840 different lengths! 841 Unlike strcasecmp(), this function works correctly in multibyte locales. */ 842 _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) 843 _GL_ATTRIBUTE_PURE 844 _GL_ARG_NONNULL ((1, 2)); 845 #endif 846 847 #if @GNULIB_MBSNCASECMP@ 848 /* Compare the initial segment of the character string S1 consisting of at most 849 N characters with the initial segment of the character string S2 consisting 850 of at most N characters, ignoring case, returning less than, equal to or 851 greater than zero if the initial segment of S1 is lexicographically less 852 than, equal to or greater than the initial segment of S2. 853 Note: This function may, in multibyte locales, return 0 for initial segments 854 of different lengths! 855 Unlike strncasecmp(), this function works correctly in multibyte locales. 856 But beware that N is not a byte count but a character count! */ 857 _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n) 858 _GL_ATTRIBUTE_PURE 859 _GL_ARG_NONNULL ((1, 2)); 860 #endif 861 862 #if @GNULIB_MBSPCASECMP@ 863 /* Compare the initial segment of the character string STRING consisting of 864 at most mbslen (PREFIX) characters with the character string PREFIX, 865 ignoring case. If the two match, return a pointer to the first byte 866 after this prefix in STRING. Otherwise, return NULL. 867 Note: This function may, in multibyte locales, return non-NULL if STRING 868 is of smaller length than PREFIX! 869 Unlike strncasecmp(), this function works correctly in multibyte 870 locales. */ 871 _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) 872 _GL_ATTRIBUTE_PURE 873 _GL_ARG_NONNULL ((1, 2)); 874 #endif 875 876 #if @GNULIB_MBSCASESTR@ 877 /* Find the first occurrence of the character string NEEDLE in the character 878 string HAYSTACK, using case-insensitive comparison. 879 Note: This function may, in multibyte locales, return success even if 880 strlen (haystack) < strlen (needle) ! 881 Unlike strcasestr(), this function works correctly in multibyte locales. */ 882 _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) 883 _GL_ATTRIBUTE_PURE 884 _GL_ARG_NONNULL ((1, 2)); 885 #endif 886 887 #if @GNULIB_MBSCSPN@ 888 /* Find the first occurrence in the character string STRING of any character 889 in the character string ACCEPT. Return the number of bytes from the 890 beginning of the string to this occurrence, or to the end of the string 891 if none exists. 892 Unlike strcspn(), this function works correctly in multibyte locales. */ 893 _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) 894 _GL_ATTRIBUTE_PURE 895 _GL_ARG_NONNULL ((1, 2)); 896 #endif 897 898 #if @GNULIB_MBSPBRK@ 899 /* Find the first occurrence in the character string STRING of any character 900 in the character string ACCEPT. Return the pointer to it, or NULL if none 901 exists. 902 Unlike strpbrk(), this function works correctly in multibyte locales. */ 903 # if defined __hpux 904 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 905 # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ 906 # endif 907 _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept) 908 _GL_ATTRIBUTE_PURE 909 _GL_ARG_NONNULL ((1, 2))); 910 _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept)); 911 # else 912 _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept) 913 _GL_ATTRIBUTE_PURE 914 _GL_ARG_NONNULL ((1, 2))); 915 _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept)); 916 # endif 917 _GL_CXXALIASWARN (mbspbrk); 918 #endif 919 920 #if @GNULIB_MBSSPN@ 921 /* Find the first occurrence in the character string STRING of any character 922 not in the character string REJECT. Return the number of bytes from the 923 beginning of the string to this occurrence, or to the end of the string 924 if none exists. 925 Unlike strspn(), this function works correctly in multibyte locales. */ 926 _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) 927 _GL_ATTRIBUTE_PURE 928 _GL_ARG_NONNULL ((1, 2)); 929 #endif 930 931 #if @GNULIB_MBSSEP@ 932 /* Search the next delimiter (multibyte character listed in the character 933 string DELIM) starting at the character string *STRINGP. 934 If one is found, overwrite it with a NUL, and advance *STRINGP to point 935 to the next multibyte character after it. Otherwise, set *STRINGP to NULL. 936 If *STRINGP was already NULL, nothing happens. 937 Return the old value of *STRINGP. 938 939 This is a variant of mbstok_r() that supports empty fields. 940 941 Caveat: It modifies the original string. 942 Caveat: These functions cannot be used on constant strings. 943 Caveat: The identity of the delimiting character is lost. 944 945 See also mbstok_r(). */ 946 _GL_EXTERN_C char * mbssep (char **stringp, const char *delim) 947 _GL_ARG_NONNULL ((1, 2)); 948 #endif 949 950 #if @GNULIB_MBSTOK_R@ 951 /* Parse the character string STRING into tokens separated by characters in 952 the character string DELIM. 953 If STRING is NULL, the saved pointer in SAVE_PTR is used as 954 the next starting point. For example: 955 char s[] = "-abc-=-def"; 956 char *sp; 957 x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" 958 x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL 959 x = mbstok_r(NULL, "=", &sp); // x = NULL 960 // s = "abc\0-def\0" 961 962 Caveat: It modifies the original string. 963 Caveat: These functions cannot be used on constant strings. 964 Caveat: The identity of the delimiting character is lost. 965 966 See also mbssep(). */ 967 _GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr) 968 _GL_ARG_NONNULL ((2, 3)); 969 #endif 970 971 /* Map any int, typically from errno, into an error message. */ 972 #if @GNULIB_STRERROR@ 973 # if @REPLACE_STRERROR@ 974 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 975 # undef strerror 976 # define strerror rpl_strerror 977 # endif 978 _GL_FUNCDECL_RPL (strerror, char *, (int)); 979 _GL_CXXALIAS_RPL (strerror, char *, (int)); 980 # else 981 _GL_CXXALIAS_SYS (strerror, char *, (int)); 982 # endif 983 _GL_CXXALIASWARN (strerror); 984 #elif defined GNULIB_POSIXCHECK 985 # undef strerror 986 /* Assume strerror is always declared. */ 987 _GL_WARN_ON_USE (strerror, "strerror is unportable - " 988 "use gnulib module strerror to guarantee non-NULL result"); 989 #endif 990 991 /* Map any int, typically from errno, into an error message. Multithread-safe. 992 Uses the POSIX declaration, not the glibc declaration. */ 993 #if @GNULIB_STRERROR_R@ 994 # if @REPLACE_STRERROR_R@ 995 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 996 # undef strerror_r 997 # define strerror_r rpl_strerror_r 998 # endif 999 _GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen) 1000 _GL_ARG_NONNULL ((2))); 1001 _GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)); 1002 # else 1003 # if !@HAVE_DECL_STRERROR_R@ 1004 _GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen) 1005 _GL_ARG_NONNULL ((2))); 1006 # endif 1007 _GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)); 1008 # endif 1009 # if @HAVE_DECL_STRERROR_R@ 1010 _GL_CXXALIASWARN (strerror_r); 1011 # endif 1012 #elif defined GNULIB_POSIXCHECK 1013 # undef strerror_r 1014 # if HAVE_RAW_DECL_STRERROR_R 1015 _GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - " 1016 "use gnulib module strerror_r-posix for portability"); 1017 # endif 1018 #endif 1019 1020 #if @GNULIB_STRSIGNAL@ 1021 # if @REPLACE_STRSIGNAL@ 1022 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) 1023 # define strsignal rpl_strsignal 1024 # endif 1025 _GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); 1026 _GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); 1027 # else 1028 # if ! @HAVE_DECL_STRSIGNAL@ 1029 _GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); 1030 # endif 1031 /* Need to cast, because on Cygwin 1.5.x systems, the return type is 1032 'const char *'. */ 1033 _GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); 1034 # endif 1035 _GL_CXXALIASWARN (strsignal); 1036 #elif defined GNULIB_POSIXCHECK 1037 # undef strsignal 1038 # if HAVE_RAW_DECL_STRSIGNAL 1039 _GL_WARN_ON_USE (strsignal, "strsignal is unportable - " 1040 "use gnulib module strsignal for portability"); 1041 # endif 1042 #endif 1043 1044 #if @GNULIB_STRVERSCMP@ 1045 # if !@HAVE_STRVERSCMP@ 1046 _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) 1047 _GL_ATTRIBUTE_PURE 1048 _GL_ARG_NONNULL ((1, 2))); 1049 # endif 1050 _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); 1051 _GL_CXXALIASWARN (strverscmp); 1052 #elif defined GNULIB_POSIXCHECK 1053 # undef strverscmp 1054 # if HAVE_RAW_DECL_STRVERSCMP 1055 _GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " 1056 "use gnulib module strverscmp for portability"); 1057 # endif 1058 #endif 1059 1060 1061 #endif /* _@GUARD_PREFIX@_STRING_H */ 1062 #endif /* _@GUARD_PREFIX@_STRING_H */ 1063 #endif 1064