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| 1 /* A GNU-like <string.h>. | |
| 2 | |
| 3 Copyright (C) 1995-1996, 2001-2011 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, write to the Free Software Foundation, | |
| 17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ | |
| 18 | |
| 19 #ifndef _GL_STRING_H | |
| 20 | |
| 21 #if __GNUC__ >= 3 | |
| 22 @PRAGMA_SYSTEM_HEADER@ | |
| 23 #endif | |
| 24 | |
| 25 /* The include_next requires a split double-inclusion guard. */ | |
| 26 #@INCLUDE_NEXT@ @NEXT_STRING_H@ | |
| 27 | |
| 28 #ifndef _GL_STRING_H | |
| 29 #define _GL_STRING_H | |
| 30 | |
| 31 /* NetBSD 5.0 mis-defines NULL. */ | |
| 32 #include <stddef.h> | |
| 33 | |
| 34 /* MirBSD defines mbslen as a macro. */ | |
| 35 #if @GNULIB_MBSLEN@ && defined __MirBSD__ | |
| 36 # include <wchar.h> | |
| 37 #endif | |
| 38 | |
| 39 #ifndef __attribute__ | |
| 40 /* This feature is available in gcc versions 2.5 and later. */ | |
| 41 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) | |
| 42 # define __attribute__(Spec) /* empty */ | |
| 43 # endif | |
| 44 /* The attribute __pure__ was added in gcc 2.96. */ | |
| 45 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96) | |
| 46 # define __pure__ /* empty */ | |
| 47 # endif | |
| 48 #endif | |
| 49 | |
| 50 | |
| 51 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ | |
| 52 | |
| 53 /* The definition of _GL_ARG_NONNULL is copied here. */ | |
| 54 | |
| 55 /* The definition of _GL_WARN_ON_USE is copied here. */ | |
| 56 | |
| 57 | |
| 58 /* Return the first instance of C within N bytes of S, or NULL. */ | |
| 59 #if @GNULIB_MEMCHR@ | |
| 60 # if @REPLACE_MEMCHR@ | |
| 61 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 62 # define memchr rpl_memchr | |
| 63 # endif | |
| 64 _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) | |
| 65 __attribute__ ((__pure__)) | |
| 66 _GL_ARG_NONNULL ((1))); | |
| 67 _GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n)); | |
| 68 # else | |
| 69 # if ! @HAVE_MEMCHR@ | |
| 70 _GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n) | |
| 71 __attribute__ ((__pure__)) | |
| 72 _GL_ARG_NONNULL ((1))); | |
| 73 # endif | |
| 74 /* On some systems, this function is defined as an overloaded function: | |
| 75 extern "C" { const void * std::memchr (const void *, int, size_t); } | |
| 76 extern "C++" { void * std::memchr (void *, int, size_t); } */ | |
| 77 _GL_CXXALIAS_SYS_CAST2 (memchr, | |
| 78 void *, (void const *__s, int __c, size_t __n), | |
| 79 void const *, (void const *__s, int __c, size_t __n)); | |
| 80 # endif | |
| 81 # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
| 82 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
| 83 _GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n)); | |
| 84 _GL_CXXALIASWARN1 (memchr, void const *, | |
| 85 (void const *__s, int __c, size_t __n)); | |
| 86 # else | |
| 87 _GL_CXXALIASWARN (memchr); | |
| 88 # endif | |
| 89 #elif defined GNULIB_POSIXCHECK | |
| 90 # undef memchr | |
| 91 /* Assume memchr is always declared. */ | |
| 92 _GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - " | |
| 93 "use gnulib module memchr for portability" ); | |
| 94 #endif | |
| 95 | |
| 96 /* Return the first occurrence of NEEDLE in HAYSTACK. */ | |
| 97 #if @GNULIB_MEMMEM@ | |
| 98 # if @REPLACE_MEMMEM@ | |
| 99 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 100 # define memmem rpl_memmem | |
| 101 # endif | |
| 102 _GL_FUNCDECL_RPL (memmem, void *, | |
| 103 (void const *__haystack, size_t __haystack_len, | |
| 104 void const *__needle, size_t __needle_len) | |
| 105 __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 3))); | |
| 106 _GL_CXXALIAS_RPL (memmem, void *, | |
| 107 (void const *__haystack, size_t __haystack_len, | |
| 108 void const *__needle, size_t __needle_len)); | |
| 109 # else | |
| 110 # if ! @HAVE_DECL_MEMMEM@ | |
| 111 _GL_FUNCDECL_SYS (memmem, void *, | |
| 112 (void const *__haystack, size_t __haystack_len, | |
| 113 void const *__needle, size_t __needle_len) | |
| 114 __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 3))); | |
| 115 # endif | |
| 116 _GL_CXXALIAS_SYS (memmem, void *, | |
| 117 (void const *__haystack, size_t __haystack_len, | |
| 118 void const *__needle, size_t __needle_len)); | |
| 119 # endif | |
| 120 _GL_CXXALIASWARN (memmem); | |
| 121 #elif defined GNULIB_POSIXCHECK | |
| 122 # undef memmem | |
| 123 # if HAVE_RAW_DECL_MEMMEM | |
| 124 _GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - " | |
| 125 "use gnulib module memmem-simple for portability, " | |
| 126 "and module memmem for speed" ); | |
| 127 # endif | |
| 128 #endif | |
| 129 | |
| 130 /* Copy N bytes of SRC to DEST, return pointer to bytes after the | |
| 131 last written byte. */ | |
| 132 #if @GNULIB_MEMPCPY@ | |
| 133 # if ! @HAVE_MEMPCPY@ | |
| 134 _GL_FUNCDECL_SYS (mempcpy, void *, | |
| 135 (void *restrict __dest, void const *restrict __src, | |
| 136 size_t __n) | |
| 137 _GL_ARG_NONNULL ((1, 2))); | |
| 138 # endif | |
| 139 _GL_CXXALIAS_SYS (mempcpy, void *, | |
| 140 (void *restrict __dest, void const *restrict __src, | |
| 141 size_t __n)); | |
| 142 _GL_CXXALIASWARN (mempcpy); | |
| 143 #elif defined GNULIB_POSIXCHECK | |
| 144 # undef mempcpy | |
| 145 # if HAVE_RAW_DECL_MEMPCPY | |
| 146 _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " | |
| 147 "use gnulib module mempcpy for portability"); | |
| 148 # endif | |
| 149 #endif | |
| 150 | |
| 151 /* Search backwards through a block for a byte (specified as an int). */ | |
| 152 #if @GNULIB_MEMRCHR@ | |
| 153 # if ! @HAVE_DECL_MEMRCHR@ | |
| 154 _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) | |
| 155 __attribute__ ((__pure__)) | |
| 156 _GL_ARG_NONNULL ((1))); | |
| 157 # endif | |
| 158 /* On some systems, this function is defined as an overloaded function: | |
| 159 extern "C++" { const void * std::memrchr (const void *, int, size_t); } | |
| 160 extern "C++" { void * std::memrchr (void *, int, size_t); } */ | |
| 161 _GL_CXXALIAS_SYS_CAST2 (memrchr, | |
| 162 void *, (void const *, int, size_t), | |
| 163 void const *, (void const *, int, size_t)); | |
| 164 # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
| 165 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
| 166 _GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t)); | |
| 167 _GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t)); | |
| 168 # else | |
| 169 _GL_CXXALIASWARN (memrchr); | |
| 170 # endif | |
| 171 #elif defined GNULIB_POSIXCHECK | |
| 172 # undef memrchr | |
| 173 # if HAVE_RAW_DECL_MEMRCHR | |
| 174 _GL_WARN_ON_USE (memrchr, "memrchr is unportable - " | |
| 175 "use gnulib module memrchr for portability"); | |
| 176 # endif | |
| 177 #endif | |
| 178 | |
| 179 /* Find the first occurrence of C in S. More efficient than | |
| 180 memchr(S,C,N), at the expense of undefined behavior if C does not | |
| 181 occur within N bytes. */ | |
| 182 #if @GNULIB_RAWMEMCHR@ | |
| 183 # if ! @HAVE_RAWMEMCHR@ | |
| 184 _GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) | |
| 185 __attribute__ ((__pure__)) | |
| 186 _GL_ARG_NONNULL ((1))); | |
| 187 # endif | |
| 188 /* On some systems, this function is defined as an overloaded function: | |
| 189 extern "C++" { const void * std::rawmemchr (const void *, int); } | |
| 190 extern "C++" { void * std::rawmemchr (void *, int); } */ | |
| 191 _GL_CXXALIAS_SYS_CAST2 (rawmemchr, | |
| 192 void *, (void const *__s, int __c_in), | |
| 193 void const *, (void const *__s, int __c_in)); | |
| 194 # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
| 195 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
| 196 _GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in)); | |
| 197 _GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in)); | |
| 198 # else | |
| 199 _GL_CXXALIASWARN (rawmemchr); | |
| 200 # endif | |
| 201 #elif defined GNULIB_POSIXCHECK | |
| 202 # undef rawmemchr | |
| 203 # if HAVE_RAW_DECL_RAWMEMCHR | |
| 204 _GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - " | |
| 205 "use gnulib module rawmemchr for portability"); | |
| 206 # endif | |
| 207 #endif | |
| 208 | |
| 209 /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */ | |
| 210 #if @GNULIB_STPCPY@ | |
| 211 # if ! @HAVE_STPCPY@ | |
| 212 _GL_FUNCDECL_SYS (stpcpy, char *, | |
| 213 (char *restrict __dst, char const *restrict __src) | |
| 214 _GL_ARG_NONNULL ((1, 2))); | |
| 215 # endif | |
| 216 _GL_CXXALIAS_SYS (stpcpy, char *, | |
| 217 (char *restrict __dst, char const *restrict __src)); | |
| 218 _GL_CXXALIASWARN (stpcpy); | |
| 219 #elif defined GNULIB_POSIXCHECK | |
| 220 # undef stpcpy | |
| 221 # if HAVE_RAW_DECL_STPCPY | |
| 222 _GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " | |
| 223 "use gnulib module stpcpy for portability"); | |
| 224 # endif | |
| 225 #endif | |
| 226 | |
| 227 /* Copy no more than N bytes of SRC to DST, returning a pointer past the | |
| 228 last non-NUL byte written into DST. */ | |
| 229 #if @GNULIB_STPNCPY@ | |
| 230 # if @REPLACE_STPNCPY@ | |
| 231 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 232 # define stpncpy rpl_stpncpy | |
| 233 # endif | |
| 234 _GL_FUNCDECL_RPL (stpncpy, char *, | |
| 235 (char *restrict __dst, char const *restrict __src, | |
| 236 size_t __n) | |
| 237 _GL_ARG_NONNULL ((1, 2))); | |
| 238 _GL_CXXALIAS_RPL (stpncpy, char *, | |
| 239 (char *restrict __dst, char const *restrict __src, | |
| 240 size_t __n)); | |
| 241 # else | |
| 242 # if ! @HAVE_STPNCPY@ | |
| 243 _GL_FUNCDECL_SYS (stpncpy, char *, | |
| 244 (char *restrict __dst, char const *restrict __src, | |
| 245 size_t __n) | |
| 246 _GL_ARG_NONNULL ((1, 2))); | |
| 247 # endif | |
| 248 _GL_CXXALIAS_SYS (stpncpy, char *, | |
| 249 (char *restrict __dst, char const *restrict __src, | |
| 250 size_t __n)); | |
| 251 # endif | |
| 252 _GL_CXXALIASWARN (stpncpy); | |
| 253 #elif defined GNULIB_POSIXCHECK | |
| 254 # undef stpncpy | |
| 255 # if HAVE_RAW_DECL_STPNCPY | |
| 256 _GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " | |
| 257 "use gnulib module stpncpy for portability"); | |
| 258 # endif | |
| 259 #endif | |
| 260 | |
| 261 #if defined GNULIB_POSIXCHECK | |
| 262 /* strchr() does not work with multibyte strings if the locale encoding is | |
| 263 GB18030 and the character to be searched is a digit. */ | |
| 264 # undef strchr | |
| 265 /* Assume strchr is always declared. */ | |
| 266 _GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings " | |
| 267 "in some multibyte locales - " | |
| 268 "use mbschr if you care about internationalization"); | |
| 269 #endif | |
| 270 | |
| 271 /* Find the first occurrence of C in S or the final NUL byte. */ | |
| 272 #if @GNULIB_STRCHRNUL@ | |
| 273 # if ! @HAVE_STRCHRNUL@ | |
| 274 _GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in) | |
| 275 __attribute__ ((__pure__)) | |
| 276 _GL_ARG_NONNULL ((1))); | |
| 277 # endif | |
| 278 /* On some systems, this function is defined as an overloaded function: | |
| 279 extern "C++" { const char * std::strchrnul (const char *, int); } | |
| 280 extern "C++" { char * std::strchrnul (char *, int); } */ | |
| 281 _GL_CXXALIAS_SYS_CAST2 (strchrnul, | |
| 282 char *, (char const *__s, int __c_in), | |
| 283 char const *, (char const *__s, int __c_in)); | |
| 284 # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
| 285 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
| 286 _GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in)); | |
| 287 _GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in)); | |
| 288 # else | |
| 289 _GL_CXXALIASWARN (strchrnul); | |
| 290 # endif | |
| 291 #elif defined GNULIB_POSIXCHECK | |
| 292 # undef strchrnul | |
| 293 # if HAVE_RAW_DECL_STRCHRNUL | |
| 294 _GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " | |
| 295 "use gnulib module strchrnul for portability"); | |
| 296 # endif | |
| 297 #endif | |
| 298 | |
| 299 /* Duplicate S, returning an identical malloc'd string. */ | |
| 300 #if @GNULIB_STRDUP@ | |
| 301 # if @REPLACE_STRDUP@ | |
| 302 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 303 # undef strdup | |
| 304 # define strdup rpl_strdup | |
| 305 # endif | |
| 306 _GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); | |
| 307 _GL_CXXALIAS_RPL (strdup, char *, (char const *__s)); | |
| 308 # else | |
| 309 # if !(@HAVE_DECL_STRDUP@ || defined strdup) | |
| 310 _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); | |
| 311 # endif | |
| 312 _GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); | |
| 313 # endif | |
| 314 _GL_CXXALIASWARN (strdup); | |
| 315 #elif defined GNULIB_POSIXCHECK | |
| 316 # undef strdup | |
| 317 # if HAVE_RAW_DECL_STRDUP | |
| 318 _GL_WARN_ON_USE (strdup, "strdup is unportable - " | |
| 319 "use gnulib module strdup for portability"); | |
| 320 # endif | |
| 321 #endif | |
| 322 | |
| 323 /* Append no more than N characters from SRC onto DEST. */ | |
| 324 #if @GNULIB_STRNCAT@ | |
| 325 # if @REPLACE_STRNCAT@ | |
| 326 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 327 # undef strncat | |
| 328 # define strncat rpl_strncat | |
| 329 # endif | |
| 330 _GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n) | |
| 331 _GL_ARG_NONNULL ((1, 2))); | |
| 332 _GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n)); | |
| 333 # else | |
| 334 _GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n)); | |
| 335 # endif | |
| 336 _GL_CXXALIASWARN (strncat); | |
| 337 #elif defined GNULIB_POSIXCHECK | |
| 338 # undef strncat | |
| 339 # if HAVE_RAW_DECL_STRNCAT | |
| 340 _GL_WARN_ON_USE (strncat, "strncat is unportable - " | |
| 341 "use gnulib module strncat for portability"); | |
| 342 # endif | |
| 343 #endif | |
| 344 | |
| 345 /* Return a newly allocated copy of at most N bytes of STRING. */ | |
| 346 #if @GNULIB_STRNDUP@ | |
| 347 # if @REPLACE_STRNDUP@ | |
| 348 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 349 # undef strndup | |
| 350 # define strndup rpl_strndup | |
| 351 # endif | |
| 352 _GL_FUNCDECL_RPL (strndup, char *, (char const *__string, size_t __n) | |
| 353 _GL_ARG_NONNULL ((1))); | |
| 354 _GL_CXXALIAS_RPL (strndup, char *, (char const *__string, size_t __n)); | |
| 355 # else | |
| 356 # if ! @HAVE_DECL_STRNDUP@ | |
| 357 _GL_FUNCDECL_SYS (strndup, char *, (char const *__string, size_t __n) | |
| 358 _GL_ARG_NONNULL ((1))); | |
| 359 # endif | |
| 360 _GL_CXXALIAS_SYS (strndup, char *, (char const *__string, size_t __n)); | |
| 361 # endif | |
| 362 _GL_CXXALIASWARN (strndup); | |
| 363 #elif defined GNULIB_POSIXCHECK | |
| 364 # undef strndup | |
| 365 # if HAVE_RAW_DECL_STRNDUP | |
| 366 _GL_WARN_ON_USE (strndup, "strndup is unportable - " | |
| 367 "use gnulib module strndup for portability"); | |
| 368 # endif | |
| 369 #endif | |
| 370 | |
| 371 /* Find the length (number of bytes) of STRING, but scan at most | |
| 372 MAXLEN bytes. If no '\0' terminator is found in that many bytes, | |
| 373 return MAXLEN. */ | |
| 374 #if @GNULIB_STRNLEN@ | |
| 375 # if @REPLACE_STRNLEN@ | |
| 376 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 377 # undef strnlen | |
| 378 # define strnlen rpl_strnlen | |
| 379 # endif | |
| 380 _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen) | |
| 381 __attribute__ ((__pure__)) | |
| 382 _GL_ARG_NONNULL ((1))); | |
| 383 _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__string, size_t __maxlen)); | |
| 384 # else | |
| 385 # if ! @HAVE_DECL_STRNLEN@ | |
| 386 _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__string, size_t __maxlen) | |
| 387 __attribute__ ((__pure__)) | |
| 388 _GL_ARG_NONNULL ((1))); | |
| 389 # endif | |
| 390 _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)); | |
| 391 # endif | |
| 392 _GL_CXXALIASWARN (strnlen); | |
| 393 #elif defined GNULIB_POSIXCHECK | |
| 394 # undef strnlen | |
| 395 # if HAVE_RAW_DECL_STRNLEN | |
| 396 _GL_WARN_ON_USE (strnlen, "strnlen is unportable - " | |
| 397 "use gnulib module strnlen for portability"); | |
| 398 # endif | |
| 399 #endif | |
| 400 | |
| 401 #if defined GNULIB_POSIXCHECK | |
| 402 /* strcspn() assumes the second argument is a list of single-byte characters. | |
| 403 Even in this simple case, it does not work with multibyte strings if the | |
| 404 locale encoding is GB18030 and one of the characters to be searched is a | |
| 405 digit. */ | |
| 406 # undef strcspn | |
| 407 /* Assume strcspn is always declared. */ | |
| 408 _GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " | |
| 409 "in multibyte locales - " | |
| 410 "use mbscspn if you care about internationalization"); | |
| 411 #endif | |
| 412 | |
| 413 /* Find the first occurrence in S of any character in ACCEPT. */ | |
| 414 #if @GNULIB_STRPBRK@ | |
| 415 # if ! @HAVE_STRPBRK@ | |
| 416 _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) | |
| 417 __attribute__ ((__pure__)) | |
| 418 _GL_ARG_NONNULL ((1, 2))); | |
| 419 # endif | |
| 420 /* On some systems, this function is defined as an overloaded function: | |
| 421 extern "C" { const char * strpbrk (const char *, const char *); } | |
| 422 extern "C++" { char * strpbrk (char *, const char *); } */ | |
| 423 _GL_CXXALIAS_SYS_CAST2 (strpbrk, | |
| 424 char *, (char const *__s, char const *__accept), | |
| 425 const char *, (char const *__s, char const *__accept)); | |
| 426 # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
| 427 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
| 428 _GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); | |
| 429 _GL_CXXALIASWARN1 (strpbrk, char const *, | |
| 430 (char const *__s, char const *__accept)); | |
| 431 # else | |
| 432 _GL_CXXALIASWARN (strpbrk); | |
| 433 # endif | |
| 434 # if defined GNULIB_POSIXCHECK | |
| 435 /* strpbrk() assumes the second argument is a list of single-byte characters. | |
| 436 Even in this simple case, it does not work with multibyte strings if the | |
| 437 locale encoding is GB18030 and one of the characters to be searched is a | |
| 438 digit. */ | |
| 439 # undef strpbrk | |
| 440 _GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings " | |
| 441 "in multibyte locales - " | |
| 442 "use mbspbrk if you care about internationalization"); | |
| 443 # endif | |
| 444 #elif defined GNULIB_POSIXCHECK | |
| 445 # undef strpbrk | |
| 446 # if HAVE_RAW_DECL_STRPBRK | |
| 447 _GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - " | |
| 448 "use gnulib module strpbrk for portability"); | |
| 449 # endif | |
| 450 #endif | |
| 451 | |
| 452 #if defined GNULIB_POSIXCHECK | |
| 453 /* strspn() assumes the second argument is a list of single-byte characters. | |
| 454 Even in this simple case, it cannot work with multibyte strings. */ | |
| 455 # undef strspn | |
| 456 /* Assume strspn is always declared. */ | |
| 457 _GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings " | |
| 458 "in multibyte locales - " | |
| 459 "use mbsspn if you care about internationalization"); | |
| 460 #endif | |
| 461 | |
| 462 #if defined GNULIB_POSIXCHECK | |
| 463 /* strrchr() does not work with multibyte strings if the locale encoding is | |
| 464 GB18030 and the character to be searched is a digit. */ | |
| 465 # undef strrchr | |
| 466 /* Assume strrchr is always declared. */ | |
| 467 _GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings " | |
| 468 "in some multibyte locales - " | |
| 469 "use mbsrchr if you care about internationalization"); | |
| 470 #endif | |
| 471 | |
| 472 /* Search the next delimiter (char listed in DELIM) starting at *STRINGP. | |
| 473 If one is found, overwrite it with a NUL, and advance *STRINGP | |
| 474 to point to the next char after it. Otherwise, set *STRINGP to NULL. | |
| 475 If *STRINGP was already NULL, nothing happens. | |
| 476 Return the old value of *STRINGP. | |
| 477 | |
| 478 This is a variant of strtok() that is multithread-safe and supports | |
| 479 empty fields. | |
| 480 | |
| 481 Caveat: It modifies the original string. | |
| 482 Caveat: These functions cannot be used on constant strings. | |
| 483 Caveat: The identity of the delimiting character is lost. | |
| 484 Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
| 485 characters are ASCII characters < 0x30. | |
| 486 | |
| 487 See also strtok_r(). */ | |
| 488 #if @GNULIB_STRSEP@ | |
| 489 # if ! @HAVE_STRSEP@ | |
| 490 _GL_FUNCDECL_SYS (strsep, char *, | |
| 491 (char **restrict __stringp, char const *restrict __delim) | |
| 492 _GL_ARG_NONNULL ((1, 2))); | |
| 493 # endif | |
| 494 _GL_CXXALIAS_SYS (strsep, char *, | |
| 495 (char **restrict __stringp, char const *restrict __delim)); | |
| 496 _GL_CXXALIASWARN (strsep); | |
| 497 # if defined GNULIB_POSIXCHECK | |
| 498 # undef strsep | |
| 499 _GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings " | |
| 500 "in multibyte locales - " | |
| 501 "use mbssep if you care about internationalization"); | |
| 502 # endif | |
| 503 #elif defined GNULIB_POSIXCHECK | |
| 504 # undef strsep | |
| 505 # if HAVE_RAW_DECL_STRSEP | |
| 506 _GL_WARN_ON_USE (strsep, "strsep is unportable - " | |
| 507 "use gnulib module strsep for portability"); | |
| 508 # endif | |
| 509 #endif | |
| 510 | |
| 511 #if @GNULIB_STRSTR@ | |
| 512 # if @REPLACE_STRSTR@ | |
| 513 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 514 # define strstr rpl_strstr | |
| 515 # endif | |
| 516 _GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) | |
| 517 __attribute__ ((__pure__)) | |
| 518 _GL_ARG_NONNULL ((1, 2))); | |
| 519 _GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); | |
| 520 # else | |
| 521 /* On some systems, this function is defined as an overloaded function: | |
| 522 extern "C++" { const char * strstr (const char *, const char *); } | |
| 523 extern "C++" { char * strstr (char *, const char *); } */ | |
| 524 _GL_CXXALIAS_SYS_CAST2 (strstr, | |
| 525 char *, (const char *haystack, const char *needle), | |
| 526 const char *, (const char *haystack, const char *needle)
); | |
| 527 # endif | |
| 528 # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
| 529 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
| 530 _GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); | |
| 531 _GL_CXXALIASWARN1 (strstr, const char *, | |
| 532 (const char *haystack, const char *needle)); | |
| 533 # else | |
| 534 _GL_CXXALIASWARN (strstr); | |
| 535 # endif | |
| 536 #elif defined GNULIB_POSIXCHECK | |
| 537 /* strstr() does not work with multibyte strings if the locale encoding is | |
| 538 different from UTF-8: | |
| 539 POSIX says that it operates on "strings", and "string" in POSIX is defined | |
| 540 as a sequence of bytes, not of characters. */ | |
| 541 # undef strstr | |
| 542 /* Assume strstr is always declared. */ | |
| 543 _GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " | |
| 544 "work correctly on character strings in most " | |
| 545 "multibyte locales - " | |
| 546 "use mbsstr if you care about internationalization, " | |
| 547 "or use strstr if you care about speed"); | |
| 548 #endif | |
| 549 | |
| 550 /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive | |
| 551 comparison. */ | |
| 552 #if @GNULIB_STRCASESTR@ | |
| 553 # if @REPLACE_STRCASESTR@ | |
| 554 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 555 # define strcasestr rpl_strcasestr | |
| 556 # endif | |
| 557 _GL_FUNCDECL_RPL (strcasestr, char *, | |
| 558 (const char *haystack, const char *needle) | |
| 559 __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 2))); | |
| 560 _GL_CXXALIAS_RPL (strcasestr, char *, | |
| 561 (const char *haystack, const char *needle)); | |
| 562 # else | |
| 563 # if ! @HAVE_STRCASESTR@ | |
| 564 _GL_FUNCDECL_SYS (strcasestr, char *, | |
| 565 (const char *haystack, const char *needle) | |
| 566 __attribute__ ((__pure__)) _GL_ARG_NONNULL ((1, 2))); | |
| 567 # endif | |
| 568 /* On some systems, this function is defined as an overloaded function: | |
| 569 extern "C++" { const char * strcasestr (const char *, const char *); } | |
| 570 extern "C++" { char * strcasestr (char *, const char *); } */ | |
| 571 _GL_CXXALIAS_SYS_CAST2 (strcasestr, | |
| 572 char *, (const char *haystack, const char *needle), | |
| 573 const char *, (const char *haystack, const char *needle)
); | |
| 574 # endif | |
| 575 # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
| 576 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
| 577 _GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle)); | |
| 578 _GL_CXXALIASWARN1 (strcasestr, const char *, | |
| 579 (const char *haystack, const char *needle)); | |
| 580 # else | |
| 581 _GL_CXXALIASWARN (strcasestr); | |
| 582 # endif | |
| 583 #elif defined GNULIB_POSIXCHECK | |
| 584 /* strcasestr() does not work with multibyte strings: | |
| 585 It is a glibc extension, and glibc implements it only for unibyte | |
| 586 locales. */ | |
| 587 # undef strcasestr | |
| 588 # if HAVE_RAW_DECL_STRCASESTR | |
| 589 _GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character " | |
| 590 "strings in multibyte locales - " | |
| 591 "use mbscasestr if you care about " | |
| 592 "internationalization, or use c-strcasestr if you want " | |
| 593 "a locale independent function"); | |
| 594 # endif | |
| 595 #endif | |
| 596 | |
| 597 /* Parse S into tokens separated by characters in DELIM. | |
| 598 If S is NULL, the saved pointer in SAVE_PTR is used as | |
| 599 the next starting point. For example: | |
| 600 char s[] = "-abc-=-def"; | |
| 601 char *sp; | |
| 602 x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
| 603 x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
| 604 x = strtok_r(NULL, "=", &sp); // x = NULL | |
| 605 // s = "abc\0-def\0" | |
| 606 | |
| 607 This is a variant of strtok() that is multithread-safe. | |
| 608 | |
| 609 For the POSIX documentation for this function, see: | |
| 610 http://www.opengroup.org/susv3xsh/strtok.html | |
| 611 | |
| 612 Caveat: It modifies the original string. | |
| 613 Caveat: These functions cannot be used on constant strings. | |
| 614 Caveat: The identity of the delimiting character is lost. | |
| 615 Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
| 616 characters are ASCII characters < 0x30. | |
| 617 | |
| 618 See also strsep(). */ | |
| 619 #if @GNULIB_STRTOK_R@ | |
| 620 # if @REPLACE_STRTOK_R@ | |
| 621 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 622 # undef strtok_r | |
| 623 # define strtok_r rpl_strtok_r | |
| 624 # endif | |
| 625 _GL_FUNCDECL_RPL (strtok_r, char *, | |
| 626 (char *restrict s, char const *restrict delim, | |
| 627 char **restrict save_ptr) | |
| 628 _GL_ARG_NONNULL ((2, 3))); | |
| 629 _GL_CXXALIAS_RPL (strtok_r, char *, | |
| 630 (char *restrict s, char const *restrict delim, | |
| 631 char **restrict save_ptr)); | |
| 632 # else | |
| 633 # if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK | |
| 634 # undef strtok_r | |
| 635 # endif | |
| 636 # if ! @HAVE_DECL_STRTOK_R@ | |
| 637 _GL_FUNCDECL_SYS (strtok_r, char *, | |
| 638 (char *restrict s, char const *restrict delim, | |
| 639 char **restrict save_ptr) | |
| 640 _GL_ARG_NONNULL ((2, 3))); | |
| 641 # endif | |
| 642 _GL_CXXALIAS_SYS (strtok_r, char *, | |
| 643 (char *restrict s, char const *restrict delim, | |
| 644 char **restrict save_ptr)); | |
| 645 # endif | |
| 646 _GL_CXXALIASWARN (strtok_r); | |
| 647 # if defined GNULIB_POSIXCHECK | |
| 648 _GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character " | |
| 649 "strings in multibyte locales - " | |
| 650 "use mbstok_r if you care about internationalization"); | |
| 651 # endif | |
| 652 #elif defined GNULIB_POSIXCHECK | |
| 653 # undef strtok_r | |
| 654 # if HAVE_RAW_DECL_STRTOK_R | |
| 655 _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " | |
| 656 "use gnulib module strtok_r for portability"); | |
| 657 # endif | |
| 658 #endif | |
| 659 | |
| 660 | |
| 661 /* The following functions are not specified by POSIX. They are gnulib | |
| 662 extensions. */ | |
| 663 | |
| 664 #if @GNULIB_MBSLEN@ | |
| 665 /* Return the number of multibyte characters in the character string STRING. | |
| 666 This considers multibyte characters, unlike strlen, which counts bytes. */ | |
| 667 # ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */ | |
| 668 # undef mbslen | |
| 669 # endif | |
| 670 # if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */ | |
| 671 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 672 # define mbslen rpl_mbslen | |
| 673 # endif | |
| 674 _GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1))); | |
| 675 _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); | |
| 676 # else | |
| 677 _GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1))); | |
| 678 _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); | |
| 679 # endif | |
| 680 _GL_CXXALIASWARN (mbslen); | |
| 681 #endif | |
| 682 | |
| 683 #if @GNULIB_MBSNLEN@ | |
| 684 /* Return the number of multibyte characters in the character string starting | |
| 685 at STRING and ending at STRING + LEN. */ | |
| 686 _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) | |
| 687 _GL_ARG_NONNULL ((1)); | |
| 688 #endif | |
| 689 | |
| 690 #if @GNULIB_MBSCHR@ | |
| 691 /* Locate the first single-byte character C in the character string STRING, | |
| 692 and return a pointer to it. Return NULL if C is not found in STRING. | |
| 693 Unlike strchr(), this function works correctly in multibyte locales with | |
| 694 encodings such as GB18030. */ | |
| 695 # if defined __hpux | |
| 696 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 697 # define mbschr rpl_mbschr /* avoid collision with HP-UX function */ | |
| 698 # endif | |
| 699 _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c) | |
| 700 _GL_ARG_NONNULL ((1))); | |
| 701 _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c)); | |
| 702 # else | |
| 703 _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c) | |
| 704 _GL_ARG_NONNULL ((1))); | |
| 705 _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c)); | |
| 706 # endif | |
| 707 _GL_CXXALIASWARN (mbschr); | |
| 708 #endif | |
| 709 | |
| 710 #if @GNULIB_MBSRCHR@ | |
| 711 /* Locate the last single-byte character C in the character string STRING, | |
| 712 and return a pointer to it. Return NULL if C is not found in STRING. | |
| 713 Unlike strrchr(), this function works correctly in multibyte locales with | |
| 714 encodings such as GB18030. */ | |
| 715 # if defined __hpux | |
| 716 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 717 # define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */ | |
| 718 # endif | |
| 719 _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c) | |
| 720 _GL_ARG_NONNULL ((1))); | |
| 721 _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c)); | |
| 722 # else | |
| 723 _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c) | |
| 724 _GL_ARG_NONNULL ((1))); | |
| 725 _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c)); | |
| 726 # endif | |
| 727 _GL_CXXALIASWARN (mbsrchr); | |
| 728 #endif | |
| 729 | |
| 730 #if @GNULIB_MBSSTR@ | |
| 731 /* Find the first occurrence of the character string NEEDLE in the character | |
| 732 string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK. | |
| 733 Unlike strstr(), this function works correctly in multibyte locales with | |
| 734 encodings different from UTF-8. */ | |
| 735 _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) | |
| 736 _GL_ARG_NONNULL ((1, 2)); | |
| 737 #endif | |
| 738 | |
| 739 #if @GNULIB_MBSCASECMP@ | |
| 740 /* Compare the character strings S1 and S2, ignoring case, returning less than, | |
| 741 equal to or greater than zero if S1 is lexicographically less than, equal to | |
| 742 or greater than S2. | |
| 743 Note: This function may, in multibyte locales, return 0 for strings of | |
| 744 different lengths! | |
| 745 Unlike strcasecmp(), this function works correctly in multibyte locales. */ | |
| 746 _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) | |
| 747 _GL_ARG_NONNULL ((1, 2)); | |
| 748 #endif | |
| 749 | |
| 750 #if @GNULIB_MBSNCASECMP@ | |
| 751 /* Compare the initial segment of the character string S1 consisting of at most | |
| 752 N characters with the initial segment of the character string S2 consisting | |
| 753 of at most N characters, ignoring case, returning less than, equal to or | |
| 754 greater than zero if the initial segment of S1 is lexicographically less | |
| 755 than, equal to or greater than the initial segment of S2. | |
| 756 Note: This function may, in multibyte locales, return 0 for initial segments | |
| 757 of different lengths! | |
| 758 Unlike strncasecmp(), this function works correctly in multibyte locales. | |
| 759 But beware that N is not a byte count but a character count! */ | |
| 760 _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n) | |
| 761 _GL_ARG_NONNULL ((1, 2)); | |
| 762 #endif | |
| 763 | |
| 764 #if @GNULIB_MBSPCASECMP@ | |
| 765 /* Compare the initial segment of the character string STRING consisting of | |
| 766 at most mbslen (PREFIX) characters with the character string PREFIX, | |
| 767 ignoring case, returning less than, equal to or greater than zero if this | |
| 768 initial segment is lexicographically less than, equal to or greater than | |
| 769 PREFIX. | |
| 770 Note: This function may, in multibyte locales, return 0 if STRING is of | |
| 771 smaller length than PREFIX! | |
| 772 Unlike strncasecmp(), this function works correctly in multibyte | |
| 773 locales. */ | |
| 774 _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) | |
| 775 _GL_ARG_NONNULL ((1, 2)); | |
| 776 #endif | |
| 777 | |
| 778 #if @GNULIB_MBSCASESTR@ | |
| 779 /* Find the first occurrence of the character string NEEDLE in the character | |
| 780 string HAYSTACK, using case-insensitive comparison. | |
| 781 Note: This function may, in multibyte locales, return success even if | |
| 782 strlen (haystack) < strlen (needle) ! | |
| 783 Unlike strcasestr(), this function works correctly in multibyte locales. */ | |
| 784 _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) | |
| 785 _GL_ARG_NONNULL ((1, 2)); | |
| 786 #endif | |
| 787 | |
| 788 #if @GNULIB_MBSCSPN@ | |
| 789 /* Find the first occurrence in the character string STRING of any character | |
| 790 in the character string ACCEPT. Return the number of bytes from the | |
| 791 beginning of the string to this occurrence, or to the end of the string | |
| 792 if none exists. | |
| 793 Unlike strcspn(), this function works correctly in multibyte locales. */ | |
| 794 _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) | |
| 795 _GL_ARG_NONNULL ((1, 2)); | |
| 796 #endif | |
| 797 | |
| 798 #if @GNULIB_MBSPBRK@ | |
| 799 /* Find the first occurrence in the character string STRING of any character | |
| 800 in the character string ACCEPT. Return the pointer to it, or NULL if none | |
| 801 exists. | |
| 802 Unlike strpbrk(), this function works correctly in multibyte locales. */ | |
| 803 # if defined __hpux | |
| 804 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 805 # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ | |
| 806 # endif | |
| 807 _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept) | |
| 808 _GL_ARG_NONNULL ((1, 2))); | |
| 809 _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept)); | |
| 810 # else | |
| 811 _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept) | |
| 812 _GL_ARG_NONNULL ((1, 2))); | |
| 813 _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept)); | |
| 814 # endif | |
| 815 _GL_CXXALIASWARN (mbspbrk); | |
| 816 #endif | |
| 817 | |
| 818 #if @GNULIB_MBSSPN@ | |
| 819 /* Find the first occurrence in the character string STRING of any character | |
| 820 not in the character string REJECT. Return the number of bytes from the | |
| 821 beginning of the string to this occurrence, or to the end of the string | |
| 822 if none exists. | |
| 823 Unlike strspn(), this function works correctly in multibyte locales. */ | |
| 824 _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) | |
| 825 _GL_ARG_NONNULL ((1, 2)); | |
| 826 #endif | |
| 827 | |
| 828 #if @GNULIB_MBSSEP@ | |
| 829 /* Search the next delimiter (multibyte character listed in the character | |
| 830 string DELIM) starting at the character string *STRINGP. | |
| 831 If one is found, overwrite it with a NUL, and advance *STRINGP to point | |
| 832 to the next multibyte character after it. Otherwise, set *STRINGP to NULL. | |
| 833 If *STRINGP was already NULL, nothing happens. | |
| 834 Return the old value of *STRINGP. | |
| 835 | |
| 836 This is a variant of mbstok_r() that supports empty fields. | |
| 837 | |
| 838 Caveat: It modifies the original string. | |
| 839 Caveat: These functions cannot be used on constant strings. | |
| 840 Caveat: The identity of the delimiting character is lost. | |
| 841 | |
| 842 See also mbstok_r(). */ | |
| 843 _GL_EXTERN_C char * mbssep (char **stringp, const char *delim) | |
| 844 _GL_ARG_NONNULL ((1, 2)); | |
| 845 #endif | |
| 846 | |
| 847 #if @GNULIB_MBSTOK_R@ | |
| 848 /* Parse the character string STRING into tokens separated by characters in | |
| 849 the character string DELIM. | |
| 850 If STRING is NULL, the saved pointer in SAVE_PTR is used as | |
| 851 the next starting point. For example: | |
| 852 char s[] = "-abc-=-def"; | |
| 853 char *sp; | |
| 854 x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
| 855 x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
| 856 x = mbstok_r(NULL, "=", &sp); // x = NULL | |
| 857 // s = "abc\0-def\0" | |
| 858 | |
| 859 Caveat: It modifies the original string. | |
| 860 Caveat: These functions cannot be used on constant strings. | |
| 861 Caveat: The identity of the delimiting character is lost. | |
| 862 | |
| 863 See also mbssep(). */ | |
| 864 _GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr) | |
| 865 _GL_ARG_NONNULL ((2, 3)); | |
| 866 #endif | |
| 867 | |
| 868 /* Map any int, typically from errno, into an error message. */ | |
| 869 #if @GNULIB_STRERROR@ | |
| 870 # if @REPLACE_STRERROR@ | |
| 871 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 872 # undef strerror | |
| 873 # define strerror rpl_strerror | |
| 874 # endif | |
| 875 _GL_FUNCDECL_RPL (strerror, char *, (int)); | |
| 876 _GL_CXXALIAS_RPL (strerror, char *, (int)); | |
| 877 # else | |
| 878 _GL_CXXALIAS_SYS (strerror, char *, (int)); | |
| 879 # endif | |
| 880 _GL_CXXALIASWARN (strerror); | |
| 881 #elif defined GNULIB_POSIXCHECK | |
| 882 # undef strerror | |
| 883 /* Assume strerror is always declared. */ | |
| 884 _GL_WARN_ON_USE (strerror, "strerror is unportable - " | |
| 885 "use gnulib module strerror to guarantee non-NULL result"); | |
| 886 #endif | |
| 887 | |
| 888 #if @GNULIB_STRSIGNAL@ | |
| 889 # if @REPLACE_STRSIGNAL@ | |
| 890 # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
| 891 # define strsignal rpl_strsignal | |
| 892 # endif | |
| 893 _GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); | |
| 894 _GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); | |
| 895 # else | |
| 896 # if ! @HAVE_DECL_STRSIGNAL@ | |
| 897 _GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); | |
| 898 # endif | |
| 899 /* Need to cast, because on Cygwin 1.5.x systems, the return type is | |
| 900 'const char *'. */ | |
| 901 _GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); | |
| 902 # endif | |
| 903 _GL_CXXALIASWARN (strsignal); | |
| 904 #elif defined GNULIB_POSIXCHECK | |
| 905 # undef strsignal | |
| 906 # if HAVE_RAW_DECL_STRSIGNAL | |
| 907 _GL_WARN_ON_USE (strsignal, "strsignal is unportable - " | |
| 908 "use gnulib module strsignal for portability"); | |
| 909 # endif | |
| 910 #endif | |
| 911 | |
| 912 #if @GNULIB_STRVERSCMP@ | |
| 913 # if !@HAVE_STRVERSCMP@ | |
| 914 _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) | |
| 915 _GL_ARG_NONNULL ((1, 2))); | |
| 916 # endif | |
| 917 _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); | |
| 918 _GL_CXXALIASWARN (strverscmp); | |
| 919 #elif defined GNULIB_POSIXCHECK | |
| 920 # undef strverscmp | |
| 921 # if HAVE_RAW_DECL_STRVERSCMP | |
| 922 _GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " | |
| 923 "use gnulib module strverscmp for portability"); | |
| 924 # endif | |
| 925 #endif | |
| 926 | |
| 927 | |
| 928 #endif /* _GL_STRING_H */ | |
| 929 #endif /* _GL_STRING_H */ | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 11969036:
Merge GDB 7.5.1 (Closed)
Base URL: http://git.chromium.org/native_client/nacl-gdb.git@master