1/* A GNU-like <string.h>. 2 3 Copyright (C) 1995-1996, 2001-2020 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#ifndef _GL_ATTRIBUTE_PURE 58# if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) 59# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) 60# else 61# define _GL_ATTRIBUTE_PURE /* empty */ 62# endif 63#endif 64 65/* NetBSD 5.0 declares strsignal in <unistd.h>, not in <string.h>. */ 66/* But in any case avoid namespace pollution on glibc systems. */ 67#if (@GNULIB_STRSIGNAL@ || defined GNULIB_POSIXCHECK) && defined __NetBSD__ \ 68 && ! defined __GLIBC__ 69# include <unistd.h> 70#endif 71 72/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ 73 74/* The definition of _GL_ARG_NONNULL is copied here. */ 75 76/* The definition of _GL_WARN_ON_USE is copied here. */ 77 78 79/* Clear a block of memory. The compiler will not delete a call to 80 this function, even if the block is dead after the call. */ 81#if @GNULIB_EXPLICIT_BZERO@ 82# if ! @HAVE_EXPLICIT_BZERO@ 83_GL_FUNCDECL_SYS (explicit_bzero, void, 84 (void *__dest, size_t __n) _GL_ARG_NONNULL ((1))); 85# endif 86_GL_CXXALIAS_SYS (explicit_bzero, void, (void *__dest, size_t __n)); 87_GL_CXXALIASWARN (explicit_bzero); 88#elif defined GNULIB_POSIXCHECK 89# undef explicit_bzero 90# if HAVE_RAW_DECL_EXPLICIT_BZERO 91_GL_WARN_ON_USE (explicit_bzero, "explicit_bzero is unportable - " 92 "use gnulib module explicit_bzero for portability"); 93# endif 94#endif 95 96/* Find the index of the least-significant set bit. */ 97#if @GNULIB_FFSL@ 98# if !@HAVE_FFSL@ 99_GL_FUNCDECL_SYS (ffsl, int, (long int i)); 100# endif 101_GL_CXXALIAS_SYS (ffsl, int, (long int i)); 102_GL_CXXALIASWARN (ffsl); 103#elif defined GNULIB_POSIXCHECK 104# undef ffsl 105# if HAVE_RAW_DECL_FFSL 106_GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module"); 107# endif 108#endif 109 110 111/* Find the index of the least-significant set bit. */ 112#if @GNULIB_FFSLL@ 113# if !@HAVE_FFSLL@ 114_GL_FUNCDECL_SYS (ffsll, int, (long long int i)); 115# endif 116_GL_CXXALIAS_SYS (ffsll, int, (long long int i)); 117_GL_CXXALIASWARN (ffsll); 118#elif defined GNULIB_POSIXCHECK 119# undef ffsll 120# if HAVE_RAW_DECL_FFSLL 121_GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module"); 122# endif 123#endif 124 125 126/* Return the first instance of C within N bytes of S, or NULL. */ 127#if @GNULIB_MEMCHR@ 128# if @REPLACE_MEMCHR@ 129# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 130# define memchr rpl_memchr 131# endif 132_GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) 133 _GL_ATTRIBUTE_PURE 134 _GL_ARG_NONNULL ((1))); 135_GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n)); 136# else 137# if ! @HAVE_MEMCHR@ 138_GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n) 139 _GL_ATTRIBUTE_PURE 140 _GL_ARG_NONNULL ((1))); 141# endif 142 /* On some systems, this function is defined as an overloaded function: 143 extern "C" { const void * std::memchr (const void *, int, size_t); } 144 extern "C++" { void * std::memchr (void *, int, size_t); } */ 145_GL_CXXALIAS_SYS_CAST2 (memchr, 146 void *, (void const *__s, int __c, size_t __n), 147 void const *, (void const *__s, int __c, size_t __n)); 148# endif 149# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 150 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 151_GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n)); 152_GL_CXXALIASWARN1 (memchr, void const *, 153 (void const *__s, int __c, size_t __n)); 154# elif __GLIBC__ >= 2 155_GL_CXXALIASWARN (memchr); 156# endif 157#elif defined GNULIB_POSIXCHECK 158# undef memchr 159/* Assume memchr is always declared. */ 160_GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - " 161 "use gnulib module memchr for portability" ); 162#endif 163 164/* Return the first occurrence of NEEDLE in HAYSTACK. */ 165#if @GNULIB_MEMMEM@ 166# if @REPLACE_MEMMEM@ 167# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 168# define memmem rpl_memmem 169# endif 170_GL_FUNCDECL_RPL (memmem, void *, 171 (void const *__haystack, size_t __haystack_len, 172 void const *__needle, size_t __needle_len) 173 _GL_ATTRIBUTE_PURE 174 _GL_ARG_NONNULL ((1, 3))); 175_GL_CXXALIAS_RPL (memmem, void *, 176 (void const *__haystack, size_t __haystack_len, 177 void const *__needle, size_t __needle_len)); 178# else 179# if ! @HAVE_DECL_MEMMEM@ 180_GL_FUNCDECL_SYS (memmem, void *, 181 (void const *__haystack, size_t __haystack_len, 182 void const *__needle, size_t __needle_len) 183 _GL_ATTRIBUTE_PURE 184 _GL_ARG_NONNULL ((1, 3))); 185# endif 186_GL_CXXALIAS_SYS (memmem, void *, 187 (void const *__haystack, size_t __haystack_len, 188 void const *__needle, size_t __needle_len)); 189# endif 190_GL_CXXALIASWARN (memmem); 191#elif defined GNULIB_POSIXCHECK 192# undef memmem 193# if HAVE_RAW_DECL_MEMMEM 194_GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - " 195 "use gnulib module memmem-simple for portability, " 196 "and module memmem for speed" ); 197# endif 198#endif 199 200/* Copy N bytes of SRC to DEST, return pointer to bytes after the 201 last written byte. */ 202#if @GNULIB_MEMPCPY@ 203# if ! @HAVE_MEMPCPY@ 204_GL_FUNCDECL_SYS (mempcpy, void *, 205 (void *restrict __dest, void const *restrict __src, 206 size_t __n) 207 _GL_ARG_NONNULL ((1, 2))); 208# endif 209_GL_CXXALIAS_SYS (mempcpy, void *, 210 (void *restrict __dest, void const *restrict __src, 211 size_t __n)); 212_GL_CXXALIASWARN (mempcpy); 213#elif defined GNULIB_POSIXCHECK 214# undef mempcpy 215# if HAVE_RAW_DECL_MEMPCPY 216_GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " 217 "use gnulib module mempcpy for portability"); 218# endif 219#endif 220 221/* Search backwards through a block for a byte (specified as an int). */ 222#if @GNULIB_MEMRCHR@ 223# if ! @HAVE_DECL_MEMRCHR@ 224_GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) 225 _GL_ATTRIBUTE_PURE 226 _GL_ARG_NONNULL ((1))); 227# endif 228 /* On some systems, this function is defined as an overloaded function: 229 extern "C++" { const void * std::memrchr (const void *, int, size_t); } 230 extern "C++" { void * std::memrchr (void *, int, size_t); } */ 231_GL_CXXALIAS_SYS_CAST2 (memrchr, 232 void *, (void const *, int, size_t), 233 void const *, (void const *, int, size_t)); 234# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 235 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 236_GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t)); 237_GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t)); 238# else 239_GL_CXXALIASWARN (memrchr); 240# endif 241#elif defined GNULIB_POSIXCHECK 242# undef memrchr 243# if HAVE_RAW_DECL_MEMRCHR 244_GL_WARN_ON_USE (memrchr, "memrchr is unportable - " 245 "use gnulib module memrchr for portability"); 246# endif 247#endif 248 249/* Find the first occurrence of C in S. More efficient than 250 memchr(S,C,N), at the expense of undefined behavior if C does not 251 occur within N bytes. */ 252#if @GNULIB_RAWMEMCHR@ 253# if ! @HAVE_RAWMEMCHR@ 254_GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) 255 _GL_ATTRIBUTE_PURE 256 _GL_ARG_NONNULL ((1))); 257# endif 258 /* On some systems, this function is defined as an overloaded function: 259 extern "C++" { const void * std::rawmemchr (const void *, int); } 260 extern "C++" { void * std::rawmemchr (void *, int); } */ 261_GL_CXXALIAS_SYS_CAST2 (rawmemchr, 262 void *, (void const *__s, int __c_in), 263 void const *, (void const *__s, int __c_in)); 264# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 265 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 266_GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in)); 267_GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in)); 268# else 269_GL_CXXALIASWARN (rawmemchr); 270# endif 271#elif defined GNULIB_POSIXCHECK 272# undef rawmemchr 273# if HAVE_RAW_DECL_RAWMEMCHR 274_GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - " 275 "use gnulib module rawmemchr for portability"); 276# endif 277#endif 278 279/* Copy SRC to DST, returning the address of the terminating '\0' in DST. */ 280#if @GNULIB_STPCPY@ 281# if ! @HAVE_STPCPY@ 282_GL_FUNCDECL_SYS (stpcpy, char *, 283 (char *restrict __dst, char const *restrict __src) 284 _GL_ARG_NONNULL ((1, 2))); 285# endif 286_GL_CXXALIAS_SYS (stpcpy, char *, 287 (char *restrict __dst, char const *restrict __src)); 288_GL_CXXALIASWARN (stpcpy); 289#elif defined GNULIB_POSIXCHECK 290# undef stpcpy 291# if HAVE_RAW_DECL_STPCPY 292_GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " 293 "use gnulib module stpcpy for portability"); 294# endif 295#endif 296 297/* Copy no more than N bytes of SRC to DST, returning a pointer past the 298 last non-NUL byte written into DST. */ 299#if @GNULIB_STPNCPY@ 300# if @REPLACE_STPNCPY@ 301# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 302# undef stpncpy 303# define stpncpy rpl_stpncpy 304# endif 305_GL_FUNCDECL_RPL (stpncpy, char *, 306 (char *restrict __dst, char const *restrict __src, 307 size_t __n) 308 _GL_ARG_NONNULL ((1, 2))); 309_GL_CXXALIAS_RPL (stpncpy, char *, 310 (char *restrict __dst, char const *restrict __src, 311 size_t __n)); 312# else 313# if ! @HAVE_STPNCPY@ 314_GL_FUNCDECL_SYS (stpncpy, char *, 315 (char *restrict __dst, char const *restrict __src, 316 size_t __n) 317 _GL_ARG_NONNULL ((1, 2))); 318# endif 319_GL_CXXALIAS_SYS (stpncpy, char *, 320 (char *restrict __dst, char const *restrict __src, 321 size_t __n)); 322# endif 323_GL_CXXALIASWARN (stpncpy); 324#elif defined GNULIB_POSIXCHECK 325# undef stpncpy 326# if HAVE_RAW_DECL_STPNCPY 327_GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " 328 "use gnulib module stpncpy for portability"); 329# endif 330#endif 331 332#if defined GNULIB_POSIXCHECK 333/* strchr() does not work with multibyte strings if the locale encoding is 334 GB18030 and the character to be searched is a digit. */ 335# undef strchr 336/* Assume strchr is always declared. */ 337_GL_WARN_ON_USE_CXX (strchr, const char *, (const char *, int), 338 "strchr cannot work correctly on character strings " 339 "in some multibyte locales - " 340 "use mbschr if you care about internationalization"); 341#endif 342 343/* Find the first occurrence of C in S or the final NUL byte. */ 344#if @GNULIB_STRCHRNUL@ 345# if @REPLACE_STRCHRNUL@ 346# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 347# define strchrnul rpl_strchrnul 348# endif 349_GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in) 350 _GL_ATTRIBUTE_PURE 351 _GL_ARG_NONNULL ((1))); 352_GL_CXXALIAS_RPL (strchrnul, char *, 353 (const char *str, int ch)); 354# else 355# if ! @HAVE_STRCHRNUL@ 356_GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in) 357 _GL_ATTRIBUTE_PURE 358 _GL_ARG_NONNULL ((1))); 359# endif 360 /* On some systems, this function is defined as an overloaded function: 361 extern "C++" { const char * std::strchrnul (const char *, int); } 362 extern "C++" { char * std::strchrnul (char *, int); } */ 363_GL_CXXALIAS_SYS_CAST2 (strchrnul, 364 char *, (char const *__s, int __c_in), 365 char const *, (char const *__s, int __c_in)); 366# endif 367# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 368 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 369_GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in)); 370_GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in)); 371# else 372_GL_CXXALIASWARN (strchrnul); 373# endif 374#elif defined GNULIB_POSIXCHECK 375# undef strchrnul 376# if HAVE_RAW_DECL_STRCHRNUL 377_GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " 378 "use gnulib module strchrnul for portability"); 379# endif 380#endif 381 382/* Duplicate S, returning an identical malloc'd string. */ 383#if @GNULIB_STRDUP@ 384# if @REPLACE_STRDUP@ 385# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 386# undef strdup 387# define strdup rpl_strdup 388# endif 389_GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); 390_GL_CXXALIAS_RPL (strdup, char *, (char const *__s)); 391# else 392# if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup 393 /* strdup exists as a function and as a macro. Get rid of the macro. */ 394# undef strdup 395# endif 396# if !(@HAVE_DECL_STRDUP@ || defined strdup) 397_GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); 398# endif 399_GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); 400# endif 401_GL_CXXALIASWARN (strdup); 402#elif defined GNULIB_POSIXCHECK 403# undef strdup 404# if HAVE_RAW_DECL_STRDUP 405_GL_WARN_ON_USE (strdup, "strdup is unportable - " 406 "use gnulib module strdup for portability"); 407# endif 408#endif 409 410/* Append no more than N characters from SRC onto DEST. */ 411#if @GNULIB_STRNCAT@ 412# if @REPLACE_STRNCAT@ 413# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 414# undef strncat 415# define strncat rpl_strncat 416# endif 417_GL_FUNCDECL_RPL (strncat, char *, 418 (char *restrict dest, const char *restrict src, size_t n) 419 _GL_ARG_NONNULL ((1, 2))); 420_GL_CXXALIAS_RPL (strncat, char *, 421 (char *restrict dest, const char *restrict src, size_t n)); 422# else 423_GL_CXXALIAS_SYS (strncat, char *, 424 (char *restrict dest, const char *restrict src, size_t n)); 425# endif 426# if __GLIBC__ >= 2 427_GL_CXXALIASWARN (strncat); 428# endif 429#elif defined GNULIB_POSIXCHECK 430# undef strncat 431# if HAVE_RAW_DECL_STRNCAT 432_GL_WARN_ON_USE (strncat, "strncat is unportable - " 433 "use gnulib module strncat for portability"); 434# endif 435#endif 436 437/* Return a newly allocated copy of at most N bytes of STRING. */ 438#if @GNULIB_STRNDUP@ 439# if @REPLACE_STRNDUP@ 440# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 441# undef strndup 442# define strndup rpl_strndup 443# endif 444_GL_FUNCDECL_RPL (strndup, char *, (char const *__s, size_t __n) 445 _GL_ARG_NONNULL ((1))); 446_GL_CXXALIAS_RPL (strndup, char *, (char const *__s, size_t __n)); 447# else 448# if ! @HAVE_DECL_STRNDUP@ 449_GL_FUNCDECL_SYS (strndup, char *, (char const *__s, size_t __n) 450 _GL_ARG_NONNULL ((1))); 451# endif 452_GL_CXXALIAS_SYS (strndup, char *, (char const *__s, size_t __n)); 453# endif 454_GL_CXXALIASWARN (strndup); 455#elif defined GNULIB_POSIXCHECK 456# undef strndup 457# if HAVE_RAW_DECL_STRNDUP 458_GL_WARN_ON_USE (strndup, "strndup is unportable - " 459 "use gnulib module strndup for portability"); 460# endif 461#endif 462 463/* Find the length (number of bytes) of STRING, but scan at most 464 MAXLEN bytes. If no '\0' terminator is found in that many bytes, 465 return MAXLEN. */ 466#if @GNULIB_STRNLEN@ 467# if @REPLACE_STRNLEN@ 468# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 469# undef strnlen 470# define strnlen rpl_strnlen 471# endif 472_GL_FUNCDECL_RPL (strnlen, size_t, (char const *__s, size_t __maxlen) 473 _GL_ATTRIBUTE_PURE 474 _GL_ARG_NONNULL ((1))); 475_GL_CXXALIAS_RPL (strnlen, size_t, (char const *__s, size_t __maxlen)); 476# else 477# if ! @HAVE_DECL_STRNLEN@ 478_GL_FUNCDECL_SYS (strnlen, size_t, (char const *__s, size_t __maxlen) 479 _GL_ATTRIBUTE_PURE 480 _GL_ARG_NONNULL ((1))); 481# endif 482_GL_CXXALIAS_SYS (strnlen, size_t, (char const *__s, size_t __maxlen)); 483# endif 484_GL_CXXALIASWARN (strnlen); 485#elif defined GNULIB_POSIXCHECK 486# undef strnlen 487# if HAVE_RAW_DECL_STRNLEN 488_GL_WARN_ON_USE (strnlen, "strnlen is unportable - " 489 "use gnulib module strnlen for portability"); 490# endif 491#endif 492 493#if defined GNULIB_POSIXCHECK 494/* strcspn() assumes the second argument is a list of single-byte characters. 495 Even in this simple case, it does not work with multibyte strings if the 496 locale encoding is GB18030 and one of the characters to be searched is a 497 digit. */ 498# undef strcspn 499/* Assume strcspn is always declared. */ 500_GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " 501 "in multibyte locales - " 502 "use mbscspn if you care about internationalization"); 503#endif 504 505/* Find the first occurrence in S of any character in ACCEPT. */ 506#if @GNULIB_STRPBRK@ 507# if ! @HAVE_STRPBRK@ 508_GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) 509 _GL_ATTRIBUTE_PURE 510 _GL_ARG_NONNULL ((1, 2))); 511# endif 512 /* On some systems, this function is defined as an overloaded function: 513 extern "C" { const char * strpbrk (const char *, const char *); } 514 extern "C++" { char * strpbrk (char *, const char *); } */ 515_GL_CXXALIAS_SYS_CAST2 (strpbrk, 516 char *, (char const *__s, char const *__accept), 517 const char *, (char const *__s, char const *__accept)); 518# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 519 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 520_GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); 521_GL_CXXALIASWARN1 (strpbrk, char const *, 522 (char const *__s, char const *__accept)); 523# elif __GLIBC__ >= 2 524_GL_CXXALIASWARN (strpbrk); 525# endif 526# if defined GNULIB_POSIXCHECK 527/* strpbrk() assumes the second argument is a list of single-byte characters. 528 Even in this simple case, it does not work with multibyte strings if the 529 locale encoding is GB18030 and one of the characters to be searched is a 530 digit. */ 531# undef strpbrk 532_GL_WARN_ON_USE_CXX (strpbrk, const char *, (const char *, const char *), 533 "strpbrk cannot work correctly on character strings " 534 "in multibyte locales - " 535 "use mbspbrk if you care about internationalization"); 536# endif 537#elif defined GNULIB_POSIXCHECK 538# undef strpbrk 539# if HAVE_RAW_DECL_STRPBRK 540_GL_WARN_ON_USE_CXX (strpbrk, const char *, (const char *, const char *), 541 "strpbrk is unportable - " 542 "use gnulib module strpbrk for portability"); 543# endif 544#endif 545 546#if defined GNULIB_POSIXCHECK 547/* strspn() assumes the second argument is a list of single-byte characters. 548 Even in this simple case, it cannot work with multibyte strings. */ 549# undef strspn 550/* Assume strspn is always declared. */ 551_GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings " 552 "in multibyte locales - " 553 "use mbsspn if you care about internationalization"); 554#endif 555 556#if defined GNULIB_POSIXCHECK 557/* strrchr() does not work with multibyte strings if the locale encoding is 558 GB18030 and the character to be searched is a digit. */ 559# undef strrchr 560/* Assume strrchr is always declared. */ 561_GL_WARN_ON_USE_CXX (strrchr, const char *, (const char *, int), 562 "strrchr cannot work correctly on character strings " 563 "in some multibyte locales - " 564 "use mbsrchr if you care about internationalization"); 565#endif 566 567/* Search the next delimiter (char listed in DELIM) starting at *STRINGP. 568 If one is found, overwrite it with a NUL, and advance *STRINGP 569 to point to the next char after it. Otherwise, set *STRINGP to NULL. 570 If *STRINGP was already NULL, nothing happens. 571 Return the old value of *STRINGP. 572 573 This is a variant of strtok() that is multithread-safe and supports 574 empty fields. 575 576 Caveat: It modifies the original string. 577 Caveat: These functions cannot be used on constant strings. 578 Caveat: The identity of the delimiting character is lost. 579 Caveat: It doesn't work with multibyte strings unless all of the delimiter 580 characters are ASCII characters < 0x30. 581 582 See also strtok_r(). */ 583#if @GNULIB_STRSEP@ 584# if ! @HAVE_STRSEP@ 585_GL_FUNCDECL_SYS (strsep, char *, 586 (char **restrict __stringp, char const *restrict __delim) 587 _GL_ARG_NONNULL ((1, 2))); 588# endif 589_GL_CXXALIAS_SYS (strsep, char *, 590 (char **restrict __stringp, char const *restrict __delim)); 591_GL_CXXALIASWARN (strsep); 592# if defined GNULIB_POSIXCHECK 593# undef strsep 594_GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings " 595 "in multibyte locales - " 596 "use mbssep if you care about internationalization"); 597# endif 598#elif defined GNULIB_POSIXCHECK 599# undef strsep 600# if HAVE_RAW_DECL_STRSEP 601_GL_WARN_ON_USE (strsep, "strsep is unportable - " 602 "use gnulib module strsep for portability"); 603# endif 604#endif 605 606#if @GNULIB_STRSTR@ 607# if @REPLACE_STRSTR@ 608# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 609# define strstr rpl_strstr 610# endif 611_GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) 612 _GL_ATTRIBUTE_PURE 613 _GL_ARG_NONNULL ((1, 2))); 614_GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); 615# else 616 /* On some systems, this function is defined as an overloaded function: 617 extern "C++" { const char * strstr (const char *, const char *); } 618 extern "C++" { char * strstr (char *, const char *); } */ 619_GL_CXXALIAS_SYS_CAST2 (strstr, 620 char *, (const char *haystack, const char *needle), 621 const char *, (const char *haystack, const char *needle)); 622# endif 623# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 624 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 625_GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); 626_GL_CXXALIASWARN1 (strstr, const char *, 627 (const char *haystack, const char *needle)); 628# elif __GLIBC__ >= 2 629_GL_CXXALIASWARN (strstr); 630# endif 631#elif defined GNULIB_POSIXCHECK 632/* strstr() does not work with multibyte strings if the locale encoding is 633 different from UTF-8: 634 POSIX says that it operates on "strings", and "string" in POSIX is defined 635 as a sequence of bytes, not of characters. */ 636# undef strstr 637/* Assume strstr is always declared. */ 638_GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " 639 "work correctly on character strings in most " 640 "multibyte locales - " 641 "use mbsstr if you care about internationalization, " 642 "or use strstr if you care about speed"); 643#endif 644 645/* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive 646 comparison. */ 647#if @GNULIB_STRCASESTR@ 648# if @REPLACE_STRCASESTR@ 649# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 650# define strcasestr rpl_strcasestr 651# endif 652_GL_FUNCDECL_RPL (strcasestr, char *, 653 (const char *haystack, const char *needle) 654 _GL_ATTRIBUTE_PURE 655 _GL_ARG_NONNULL ((1, 2))); 656_GL_CXXALIAS_RPL (strcasestr, char *, 657 (const char *haystack, const char *needle)); 658# else 659# if ! @HAVE_STRCASESTR@ 660_GL_FUNCDECL_SYS (strcasestr, char *, 661 (const char *haystack, const char *needle) 662 _GL_ATTRIBUTE_PURE 663 _GL_ARG_NONNULL ((1, 2))); 664# endif 665 /* On some systems, this function is defined as an overloaded function: 666 extern "C++" { const char * strcasestr (const char *, const char *); } 667 extern "C++" { char * strcasestr (char *, const char *); } */ 668_GL_CXXALIAS_SYS_CAST2 (strcasestr, 669 char *, (const char *haystack, const char *needle), 670 const char *, (const char *haystack, const char *needle)); 671# endif 672# if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ 673 && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) 674_GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle)); 675_GL_CXXALIASWARN1 (strcasestr, const char *, 676 (const char *haystack, const char *needle)); 677# else 678_GL_CXXALIASWARN (strcasestr); 679# endif 680#elif defined GNULIB_POSIXCHECK 681/* strcasestr() does not work with multibyte strings: 682 It is a glibc extension, and glibc implements it only for unibyte 683 locales. */ 684# undef strcasestr 685# if HAVE_RAW_DECL_STRCASESTR 686_GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character " 687 "strings in multibyte locales - " 688 "use mbscasestr if you care about " 689 "internationalization, or use c-strcasestr if you want " 690 "a locale independent function"); 691# endif 692#endif 693 694/* Parse S into tokens separated by characters in DELIM. 695 If S is NULL, the saved pointer in SAVE_PTR is used as 696 the next starting point. For example: 697 char s[] = "-abc-=-def"; 698 char *sp; 699 x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" 700 x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL 701 x = strtok_r(NULL, "=", &sp); // x = NULL 702 // s = "abc\0-def\0" 703 704 This is a variant of strtok() that is multithread-safe. 705 706 For the POSIX documentation for this function, see: 707 https://pubs.opengroup.org/onlinepubs/9699919799/functions/strtok.html 708 709 Caveat: It modifies the original string. 710 Caveat: These functions cannot be used on constant strings. 711 Caveat: The identity of the delimiting character is lost. 712 Caveat: It doesn't work with multibyte strings unless all of the delimiter 713 characters are ASCII characters < 0x30. 714 715 See also strsep(). */ 716#if @GNULIB_STRTOK_R@ 717# if @REPLACE_STRTOK_R@ 718# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 719# undef strtok_r 720# define strtok_r rpl_strtok_r 721# endif 722_GL_FUNCDECL_RPL (strtok_r, char *, 723 (char *restrict s, char const *restrict delim, 724 char **restrict save_ptr) 725 _GL_ARG_NONNULL ((2, 3))); 726_GL_CXXALIAS_RPL (strtok_r, char *, 727 (char *restrict s, char const *restrict delim, 728 char **restrict save_ptr)); 729# else 730# if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK 731# undef strtok_r 732# endif 733# if ! @HAVE_DECL_STRTOK_R@ 734_GL_FUNCDECL_SYS (strtok_r, char *, 735 (char *restrict s, char const *restrict delim, 736 char **restrict save_ptr) 737 _GL_ARG_NONNULL ((2, 3))); 738# endif 739_GL_CXXALIAS_SYS (strtok_r, char *, 740 (char *restrict s, char const *restrict delim, 741 char **restrict save_ptr)); 742# endif 743_GL_CXXALIASWARN (strtok_r); 744# if defined GNULIB_POSIXCHECK 745_GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character " 746 "strings in multibyte locales - " 747 "use mbstok_r if you care about internationalization"); 748# endif 749#elif defined GNULIB_POSIXCHECK 750# undef strtok_r 751# if HAVE_RAW_DECL_STRTOK_R 752_GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " 753 "use gnulib module strtok_r for portability"); 754# endif 755#endif 756 757 758/* The following functions are not specified by POSIX. They are gnulib 759 extensions. */ 760 761#if @GNULIB_MBSLEN@ 762/* Return the number of multibyte characters in the character string STRING. 763 This considers multibyte characters, unlike strlen, which counts bytes. */ 764# ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */ 765# undef mbslen 766# endif 767# if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */ 768# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 769# define mbslen rpl_mbslen 770# endif 771_GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) 772 _GL_ATTRIBUTE_PURE 773 _GL_ARG_NONNULL ((1))); 774_GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); 775# else 776_GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) 777 _GL_ATTRIBUTE_PURE 778 _GL_ARG_NONNULL ((1))); 779_GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); 780# endif 781_GL_CXXALIASWARN (mbslen); 782#endif 783 784#if @GNULIB_MBSNLEN@ 785/* Return the number of multibyte characters in the character string starting 786 at STRING and ending at STRING + LEN. */ 787_GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) 788 _GL_ATTRIBUTE_PURE 789 _GL_ARG_NONNULL ((1)); 790#endif 791 792#if @GNULIB_MBSCHR@ 793/* Locate the first single-byte character C in the character string STRING, 794 and return a pointer to it. Return NULL if C is not found in STRING. 795 Unlike strchr(), this function works correctly in multibyte locales with 796 encodings such as GB18030. */ 797# if defined __hpux 798# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 799# define mbschr rpl_mbschr /* avoid collision with HP-UX function */ 800# endif 801_GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c) 802 _GL_ATTRIBUTE_PURE 803 _GL_ARG_NONNULL ((1))); 804_GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c)); 805# else 806_GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c) 807 _GL_ATTRIBUTE_PURE 808 _GL_ARG_NONNULL ((1))); 809_GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c)); 810# endif 811_GL_CXXALIASWARN (mbschr); 812#endif 813 814#if @GNULIB_MBSRCHR@ 815/* Locate the last single-byte character C in the character string STRING, 816 and return a pointer to it. Return NULL if C is not found in STRING. 817 Unlike strrchr(), this function works correctly in multibyte locales with 818 encodings such as GB18030. */ 819# if defined __hpux || defined __INTERIX 820# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 821# define mbsrchr rpl_mbsrchr /* avoid collision with system function */ 822# endif 823_GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c) 824 _GL_ATTRIBUTE_PURE 825 _GL_ARG_NONNULL ((1))); 826_GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c)); 827# else 828_GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c) 829 _GL_ATTRIBUTE_PURE 830 _GL_ARG_NONNULL ((1))); 831_GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c)); 832# endif 833_GL_CXXALIASWARN (mbsrchr); 834#endif 835 836#if @GNULIB_MBSSTR@ 837/* Find the first occurrence of the character string NEEDLE in the character 838 string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK. 839 Unlike strstr(), this function works correctly in multibyte locales with 840 encodings different from UTF-8. */ 841_GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) 842 _GL_ATTRIBUTE_PURE 843 _GL_ARG_NONNULL ((1, 2)); 844#endif 845 846#if @GNULIB_MBSCASECMP@ 847/* Compare the character strings S1 and S2, ignoring case, returning less than, 848 equal to or greater than zero if S1 is lexicographically less than, equal to 849 or greater than S2. 850 Note: This function may, in multibyte locales, return 0 for strings of 851 different lengths! 852 Unlike strcasecmp(), this function works correctly in multibyte locales. */ 853_GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) 854 _GL_ATTRIBUTE_PURE 855 _GL_ARG_NONNULL ((1, 2)); 856#endif 857 858#if @GNULIB_MBSNCASECMP@ 859/* Compare the initial segment of the character string S1 consisting of at most 860 N characters with the initial segment of the character string S2 consisting 861 of at most N characters, ignoring case, returning less than, equal to or 862 greater than zero if the initial segment of S1 is lexicographically less 863 than, equal to or greater than the initial segment of S2. 864 Note: This function may, in multibyte locales, return 0 for initial segments 865 of different lengths! 866 Unlike strncasecmp(), this function works correctly in multibyte locales. 867 But beware that N is not a byte count but a character count! */ 868_GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n) 869 _GL_ATTRIBUTE_PURE 870 _GL_ARG_NONNULL ((1, 2)); 871#endif 872 873#if @GNULIB_MBSPCASECMP@ 874/* Compare the initial segment of the character string STRING consisting of 875 at most mbslen (PREFIX) characters with the character string PREFIX, 876 ignoring case. If the two match, return a pointer to the first byte 877 after this prefix in STRING. Otherwise, return NULL. 878 Note: This function may, in multibyte locales, return non-NULL if STRING 879 is of smaller length than PREFIX! 880 Unlike strncasecmp(), this function works correctly in multibyte 881 locales. */ 882_GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) 883 _GL_ATTRIBUTE_PURE 884 _GL_ARG_NONNULL ((1, 2)); 885#endif 886 887#if @GNULIB_MBSCASESTR@ 888/* Find the first occurrence of the character string NEEDLE in the character 889 string HAYSTACK, using case-insensitive comparison. 890 Note: This function may, in multibyte locales, return success even if 891 strlen (haystack) < strlen (needle) ! 892 Unlike strcasestr(), this function works correctly in multibyte locales. */ 893_GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) 894 _GL_ATTRIBUTE_PURE 895 _GL_ARG_NONNULL ((1, 2)); 896#endif 897 898#if @GNULIB_MBSCSPN@ 899/* Find the first occurrence in the character string STRING of any character 900 in the character string ACCEPT. Return the number of bytes from the 901 beginning of the string to this occurrence, or to the end of the string 902 if none exists. 903 Unlike strcspn(), this function works correctly in multibyte locales. */ 904_GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) 905 _GL_ATTRIBUTE_PURE 906 _GL_ARG_NONNULL ((1, 2)); 907#endif 908 909#if @GNULIB_MBSPBRK@ 910/* Find the first occurrence in the character string STRING of any character 911 in the character string ACCEPT. Return the pointer to it, or NULL if none 912 exists. 913 Unlike strpbrk(), this function works correctly in multibyte locales. */ 914# if defined __hpux 915# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 916# define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ 917# endif 918_GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept) 919 _GL_ATTRIBUTE_PURE 920 _GL_ARG_NONNULL ((1, 2))); 921_GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept)); 922# else 923_GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept) 924 _GL_ATTRIBUTE_PURE 925 _GL_ARG_NONNULL ((1, 2))); 926_GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept)); 927# endif 928_GL_CXXALIASWARN (mbspbrk); 929#endif 930 931#if @GNULIB_MBSSPN@ 932/* Find the first occurrence in the character string STRING of any character 933 not in the character string REJECT. Return the number of bytes from the 934 beginning of the string to this occurrence, or to the end of the string 935 if none exists. 936 Unlike strspn(), this function works correctly in multibyte locales. */ 937_GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) 938 _GL_ATTRIBUTE_PURE 939 _GL_ARG_NONNULL ((1, 2)); 940#endif 941 942#if @GNULIB_MBSSEP@ 943/* Search the next delimiter (multibyte character listed in the character 944 string DELIM) starting at the character string *STRINGP. 945 If one is found, overwrite it with a NUL, and advance *STRINGP to point 946 to the next multibyte character after it. Otherwise, set *STRINGP to NULL. 947 If *STRINGP was already NULL, nothing happens. 948 Return the old value of *STRINGP. 949 950 This is a variant of mbstok_r() that supports empty fields. 951 952 Caveat: It modifies the original string. 953 Caveat: These functions cannot be used on constant strings. 954 Caveat: The identity of the delimiting character is lost. 955 956 See also mbstok_r(). */ 957_GL_EXTERN_C char * mbssep (char **stringp, const char *delim) 958 _GL_ARG_NONNULL ((1, 2)); 959#endif 960 961#if @GNULIB_MBSTOK_R@ 962/* Parse the character string STRING into tokens separated by characters in 963 the character string DELIM. 964 If STRING is NULL, the saved pointer in SAVE_PTR is used as 965 the next starting point. For example: 966 char s[] = "-abc-=-def"; 967 char *sp; 968 x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" 969 x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL 970 x = mbstok_r(NULL, "=", &sp); // x = NULL 971 // s = "abc\0-def\0" 972 973 Caveat: It modifies the original string. 974 Caveat: These functions cannot be used on constant strings. 975 Caveat: The identity of the delimiting character is lost. 976 977 See also mbssep(). */ 978_GL_EXTERN_C char * mbstok_r (char *restrict string, const char *delim, 979 char **save_ptr) 980 _GL_ARG_NONNULL ((2, 3)); 981#endif 982 983/* Map any int, typically from errno, into an error message. */ 984#if @GNULIB_STRERROR@ 985# if @REPLACE_STRERROR@ 986# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 987# undef strerror 988# define strerror rpl_strerror 989# endif 990_GL_FUNCDECL_RPL (strerror, char *, (int)); 991_GL_CXXALIAS_RPL (strerror, char *, (int)); 992# else 993_GL_CXXALIAS_SYS (strerror, char *, (int)); 994# endif 995# if __GLIBC__ >= 2 996_GL_CXXALIASWARN (strerror); 997# endif 998#elif defined GNULIB_POSIXCHECK 999# undef strerror 1000/* Assume strerror is always declared. */ 1001_GL_WARN_ON_USE (strerror, "strerror is unportable - " 1002 "use gnulib module strerror to guarantee non-NULL result"); 1003#endif 1004 1005/* Map any int, typically from errno, into an error message. Multithread-safe. 1006 Uses the POSIX declaration, not the glibc declaration. */ 1007#if @GNULIB_STRERROR_R@ 1008# if @REPLACE_STRERROR_R@ 1009# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 1010# undef strerror_r 1011# define strerror_r rpl_strerror_r 1012# endif 1013_GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen) 1014 _GL_ARG_NONNULL ((2))); 1015_GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)); 1016# else 1017# if !@HAVE_DECL_STRERROR_R@ 1018_GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen) 1019 _GL_ARG_NONNULL ((2))); 1020# endif 1021_GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)); 1022# endif 1023# if @HAVE_DECL_STRERROR_R@ 1024_GL_CXXALIASWARN (strerror_r); 1025# endif 1026#elif defined GNULIB_POSIXCHECK 1027# undef strerror_r 1028# if HAVE_RAW_DECL_STRERROR_R 1029_GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - " 1030 "use gnulib module strerror_r-posix for portability"); 1031# endif 1032#endif 1033 1034#if @GNULIB_STRSIGNAL@ 1035# if @REPLACE_STRSIGNAL@ 1036# if !(defined __cplusplus && defined GNULIB_NAMESPACE) 1037# define strsignal rpl_strsignal 1038# endif 1039_GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); 1040_GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); 1041# else 1042# if ! @HAVE_DECL_STRSIGNAL@ 1043_GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); 1044# endif 1045/* Need to cast, because on Cygwin 1.5.x systems, the return type is 1046 'const char *'. */ 1047_GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); 1048# endif 1049_GL_CXXALIASWARN (strsignal); 1050#elif defined GNULIB_POSIXCHECK 1051# undef strsignal 1052# if HAVE_RAW_DECL_STRSIGNAL 1053_GL_WARN_ON_USE (strsignal, "strsignal is unportable - " 1054 "use gnulib module strsignal for portability"); 1055# endif 1056#endif 1057 1058#if @GNULIB_STRVERSCMP@ 1059# if !@HAVE_STRVERSCMP@ 1060_GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) 1061 _GL_ATTRIBUTE_PURE 1062 _GL_ARG_NONNULL ((1, 2))); 1063# endif 1064_GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); 1065_GL_CXXALIASWARN (strverscmp); 1066#elif defined GNULIB_POSIXCHECK 1067# undef strverscmp 1068# if HAVE_RAW_DECL_STRVERSCMP 1069_GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " 1070 "use gnulib module strverscmp for portability"); 1071# endif 1072#endif 1073 1074 1075#endif /* _@GUARD_PREFIX@_STRING_H */ 1076#endif /* _@GUARD_PREFIX@_STRING_H */ 1077#endif 1078