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f6ea5628 DJ |
1 | /* A GNU-like <string.h>. |
2 | ||
c0c3707f | 3 | Copyright (C) 1995-1996, 2001-2019 Free Software Foundation, Inc. |
f6ea5628 DJ |
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 | |
4c38e0a4 | 7 | the Free Software Foundation; either version 3, or (at your option) |
f6ea5628 DJ |
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 | |
c0c3707f | 16 | along with this program; if not, see <https://www.gnu.org/licenses/>. */ |
f6ea5628 | 17 | |
f434ba03 PA |
18 | #if __GNUC__ >= 3 |
19 | @PRAGMA_SYSTEM_HEADER@ | |
20 | #endif | |
770d76d7 | 21 | @PRAGMA_COLUMNS@ |
f434ba03 | 22 | |
4a626d0a PA |
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 | ||
f6ea5628 DJ |
39 | /* The include_next requires a split double-inclusion guard. */ |
40 | #@INCLUDE_NEXT@ @NEXT_STRING_H@ | |
41 | ||
4a626d0a PA |
42 | #undef _GL_ALREADY_INCLUDING_STRING_H |
43 | ||
770d76d7 PA |
44 | #ifndef _@GUARD_PREFIX@_STRING_H |
45 | #define _@GUARD_PREFIX@_STRING_H | |
f6ea5628 | 46 | |
f434ba03 PA |
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 | |
f6ea5628 | 54 | |
770d76d7 PA |
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 */ | |
f6ea5628 DJ |
61 | #endif |
62 | ||
770d76d7 PA |
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 | |
f6ea5628 | 69 | |
f434ba03 PA |
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 | ||
c0c3707f CB |
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 | ||
770d76d7 PA |
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 | ||
f434ba03 PA |
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) | |
770d76d7 | 131 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
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) | |
770d76d7 | 137 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
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 | |
770d76d7 | 147 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
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)); | |
c0c3707f | 152 | # elif __GLIBC__ >= 2 |
f434ba03 PA |
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" ); | |
f6ea5628 DJ |
160 | #endif |
161 | ||
f6ea5628 DJ |
162 | /* Return the first occurrence of NEEDLE in HAYSTACK. */ |
163 | #if @GNULIB_MEMMEM@ | |
164 | # if @REPLACE_MEMMEM@ | |
f434ba03 PA |
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) | |
770d76d7 PA |
171 | _GL_ATTRIBUTE_PURE |
172 | _GL_ARG_NONNULL ((1, 3))); | |
f434ba03 PA |
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) | |
770d76d7 PA |
181 | _GL_ATTRIBUTE_PURE |
182 | _GL_ARG_NONNULL ((1, 3))); | |
f434ba03 PA |
183 | # endif |
184 | _GL_CXXALIAS_SYS (memmem, void *, | |
185 | (void const *__haystack, size_t __haystack_len, | |
186 | void const *__needle, size_t __needle_len)); | |
f6ea5628 | 187 | # endif |
f434ba03 | 188 | _GL_CXXALIASWARN (memmem); |
f6ea5628 DJ |
189 | #elif defined GNULIB_POSIXCHECK |
190 | # undef memmem | |
f434ba03 PA |
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 | |
f6ea5628 DJ |
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@ | |
f434ba03 PA |
202 | _GL_FUNCDECL_SYS (mempcpy, void *, |
203 | (void *restrict __dest, void const *restrict __src, | |
204 | size_t __n) | |
205 | _GL_ARG_NONNULL ((1, 2))); | |
f6ea5628 | 206 | # endif |
f434ba03 PA |
207 | _GL_CXXALIAS_SYS (mempcpy, void *, |
208 | (void *restrict __dest, void const *restrict __src, | |
209 | size_t __n)); | |
210 | _GL_CXXALIASWARN (mempcpy); | |
f6ea5628 DJ |
211 | #elif defined GNULIB_POSIXCHECK |
212 | # undef mempcpy | |
f434ba03 PA |
213 | # if HAVE_RAW_DECL_MEMPCPY |
214 | _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " | |
215 | "use gnulib module mempcpy for portability"); | |
216 | # endif | |
f6ea5628 DJ |
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@ | |
f434ba03 | 222 | _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) |
770d76d7 | 223 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
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)); | |
770d76d7 | 232 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
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); | |
f6ea5628 DJ |
238 | # endif |
239 | #elif defined GNULIB_POSIXCHECK | |
240 | # undef memrchr | |
f434ba03 PA |
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) | |
770d76d7 | 253 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
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)); | |
770d76d7 | 262 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
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 | |
f6ea5628 DJ |
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@ | |
f434ba03 PA |
280 | _GL_FUNCDECL_SYS (stpcpy, char *, |
281 | (char *restrict __dst, char const *restrict __src) | |
282 | _GL_ARG_NONNULL ((1, 2))); | |
f6ea5628 | 283 | # endif |
f434ba03 PA |
284 | _GL_CXXALIAS_SYS (stpcpy, char *, |
285 | (char *restrict __dst, char const *restrict __src)); | |
286 | _GL_CXXALIASWARN (stpcpy); | |
f6ea5628 DJ |
287 | #elif defined GNULIB_POSIXCHECK |
288 | # undef stpcpy | |
f434ba03 PA |
289 | # if HAVE_RAW_DECL_STPCPY |
290 | _GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " | |
291 | "use gnulib module stpcpy for portability"); | |
292 | # endif | |
f6ea5628 DJ |
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@ | |
f434ba03 PA |
298 | # if @REPLACE_STPNCPY@ |
299 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
770d76d7 | 300 | # undef stpncpy |
f434ba03 PA |
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)); | |
f6ea5628 | 320 | # endif |
f434ba03 | 321 | _GL_CXXALIASWARN (stpncpy); |
f6ea5628 DJ |
322 | #elif defined GNULIB_POSIXCHECK |
323 | # undef stpncpy | |
f434ba03 PA |
324 | # if HAVE_RAW_DECL_STPNCPY |
325 | _GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " | |
326 | "use gnulib module stpncpy for portability"); | |
327 | # endif | |
f6ea5628 DJ |
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 | |
f434ba03 PA |
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"); | |
f6ea5628 DJ |
338 | #endif |
339 | ||
340 | /* Find the first occurrence of C in S or the final NUL byte. */ | |
341 | #if @GNULIB_STRCHRNUL@ | |
770d76d7 PA |
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@ | |
f434ba03 | 353 | _GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in) |
770d76d7 | 354 | _GL_ATTRIBUTE_PURE |
f434ba03 | 355 | _GL_ARG_NONNULL ((1))); |
770d76d7 | 356 | # endif |
f434ba03 PA |
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)); | |
770d76d7 PA |
363 | # endif |
364 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ | |
f434ba03 PA |
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); | |
f6ea5628 DJ |
370 | # endif |
371 | #elif defined GNULIB_POSIXCHECK | |
372 | # undef strchrnul | |
f434ba03 PA |
373 | # if HAVE_RAW_DECL_STRCHRNUL |
374 | _GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " | |
375 | "use gnulib module strchrnul for portability"); | |
376 | # endif | |
f6ea5628 DJ |
377 | #endif |
378 | ||
379 | /* Duplicate S, returning an identical malloc'd string. */ | |
380 | #if @GNULIB_STRDUP@ | |
f434ba03 PA |
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 | |
770d76d7 PA |
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 | |
f434ba03 PA |
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)); | |
f6ea5628 | 397 | # endif |
f434ba03 | 398 | _GL_CXXALIASWARN (strdup); |
f6ea5628 DJ |
399 | #elif defined GNULIB_POSIXCHECK |
400 | # undef strdup | |
f434ba03 PA |
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 | |
c0c3707f | 420 | # if __GLIBC__ >= 2 |
f434ba03 | 421 | _GL_CXXALIASWARN (strncat); |
c0c3707f | 422 | # endif |
f434ba03 PA |
423 | #elif defined GNULIB_POSIXCHECK |
424 | # undef strncat | |
425 | # if HAVE_RAW_DECL_STRNCAT | |
426 | _GL_WARN_ON_USE (strncat, "strncat is unportable - " | |
427 | "use gnulib module strncat for portability"); | |
428 | # endif | |
f6ea5628 DJ |
429 | #endif |
430 | ||
431 | /* Return a newly allocated copy of at most N bytes of STRING. */ | |
432 | #if @GNULIB_STRNDUP@ | |
f434ba03 PA |
433 | # if @REPLACE_STRNDUP@ |
434 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
435 | # undef strndup | |
436 | # define strndup rpl_strndup | |
437 | # endif | |
49e4877c | 438 | _GL_FUNCDECL_RPL (strndup, char *, (char const *__s, size_t __n) |
f434ba03 | 439 | _GL_ARG_NONNULL ((1))); |
49e4877c | 440 | _GL_CXXALIAS_RPL (strndup, char *, (char const *__s, size_t __n)); |
f434ba03 PA |
441 | # else |
442 | # if ! @HAVE_DECL_STRNDUP@ | |
49e4877c | 443 | _GL_FUNCDECL_SYS (strndup, char *, (char const *__s, size_t __n) |
f434ba03 PA |
444 | _GL_ARG_NONNULL ((1))); |
445 | # endif | |
49e4877c | 446 | _GL_CXXALIAS_SYS (strndup, char *, (char const *__s, size_t __n)); |
f6ea5628 | 447 | # endif |
f434ba03 | 448 | _GL_CXXALIASWARN (strndup); |
f6ea5628 DJ |
449 | #elif defined GNULIB_POSIXCHECK |
450 | # undef strndup | |
f434ba03 PA |
451 | # if HAVE_RAW_DECL_STRNDUP |
452 | _GL_WARN_ON_USE (strndup, "strndup is unportable - " | |
453 | "use gnulib module strndup for portability"); | |
454 | # endif | |
f6ea5628 DJ |
455 | #endif |
456 | ||
457 | /* Find the length (number of bytes) of STRING, but scan at most | |
458 | MAXLEN bytes. If no '\0' terminator is found in that many bytes, | |
459 | return MAXLEN. */ | |
460 | #if @GNULIB_STRNLEN@ | |
f434ba03 PA |
461 | # if @REPLACE_STRNLEN@ |
462 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
463 | # undef strnlen | |
464 | # define strnlen rpl_strnlen | |
465 | # endif | |
49e4877c | 466 | _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__s, size_t __maxlen) |
770d76d7 | 467 | _GL_ATTRIBUTE_PURE |
f434ba03 | 468 | _GL_ARG_NONNULL ((1))); |
49e4877c | 469 | _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__s, size_t __maxlen)); |
f434ba03 PA |
470 | # else |
471 | # if ! @HAVE_DECL_STRNLEN@ | |
49e4877c | 472 | _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__s, size_t __maxlen) |
770d76d7 | 473 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
474 | _GL_ARG_NONNULL ((1))); |
475 | # endif | |
49e4877c | 476 | _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__s, size_t __maxlen)); |
f6ea5628 | 477 | # endif |
f434ba03 | 478 | _GL_CXXALIASWARN (strnlen); |
f6ea5628 DJ |
479 | #elif defined GNULIB_POSIXCHECK |
480 | # undef strnlen | |
f434ba03 PA |
481 | # if HAVE_RAW_DECL_STRNLEN |
482 | _GL_WARN_ON_USE (strnlen, "strnlen is unportable - " | |
483 | "use gnulib module strnlen for portability"); | |
484 | # endif | |
f6ea5628 DJ |
485 | #endif |
486 | ||
487 | #if defined GNULIB_POSIXCHECK | |
488 | /* strcspn() assumes the second argument is a list of single-byte characters. | |
489 | Even in this simple case, it does not work with multibyte strings if the | |
490 | locale encoding is GB18030 and one of the characters to be searched is a | |
491 | digit. */ | |
492 | # undef strcspn | |
f434ba03 PA |
493 | /* Assume strcspn is always declared. */ |
494 | _GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " | |
495 | "in multibyte locales - " | |
496 | "use mbscspn if you care about internationalization"); | |
f6ea5628 DJ |
497 | #endif |
498 | ||
499 | /* Find the first occurrence in S of any character in ACCEPT. */ | |
500 | #if @GNULIB_STRPBRK@ | |
501 | # if ! @HAVE_STRPBRK@ | |
f434ba03 | 502 | _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) |
770d76d7 | 503 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
504 | _GL_ARG_NONNULL ((1, 2))); |
505 | # endif | |
506 | /* On some systems, this function is defined as an overloaded function: | |
507 | extern "C" { const char * strpbrk (const char *, const char *); } | |
508 | extern "C++" { char * strpbrk (char *, const char *); } */ | |
509 | _GL_CXXALIAS_SYS_CAST2 (strpbrk, | |
510 | char *, (char const *__s, char const *__accept), | |
511 | const char *, (char const *__s, char const *__accept)); | |
770d76d7 | 512 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
513 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
514 | _GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); | |
515 | _GL_CXXALIASWARN1 (strpbrk, char const *, | |
516 | (char const *__s, char const *__accept)); | |
c0c3707f | 517 | # elif __GLIBC__ >= 2 |
f434ba03 | 518 | _GL_CXXALIASWARN (strpbrk); |
f6ea5628 DJ |
519 | # endif |
520 | # if defined GNULIB_POSIXCHECK | |
521 | /* strpbrk() assumes the second argument is a list of single-byte characters. | |
522 | Even in this simple case, it does not work with multibyte strings if the | |
523 | locale encoding is GB18030 and one of the characters to be searched is a | |
524 | digit. */ | |
525 | # undef strpbrk | |
f434ba03 PA |
526 | _GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings " |
527 | "in multibyte locales - " | |
528 | "use mbspbrk if you care about internationalization"); | |
f6ea5628 DJ |
529 | # endif |
530 | #elif defined GNULIB_POSIXCHECK | |
531 | # undef strpbrk | |
f434ba03 PA |
532 | # if HAVE_RAW_DECL_STRPBRK |
533 | _GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - " | |
534 | "use gnulib module strpbrk for portability"); | |
535 | # endif | |
f6ea5628 DJ |
536 | #endif |
537 | ||
538 | #if defined GNULIB_POSIXCHECK | |
539 | /* strspn() assumes the second argument is a list of single-byte characters. | |
540 | Even in this simple case, it cannot work with multibyte strings. */ | |
541 | # undef strspn | |
f434ba03 PA |
542 | /* Assume strspn is always declared. */ |
543 | _GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings " | |
544 | "in multibyte locales - " | |
545 | "use mbsspn if you care about internationalization"); | |
f6ea5628 DJ |
546 | #endif |
547 | ||
548 | #if defined GNULIB_POSIXCHECK | |
549 | /* strrchr() does not work with multibyte strings if the locale encoding is | |
550 | GB18030 and the character to be searched is a digit. */ | |
551 | # undef strrchr | |
f434ba03 PA |
552 | /* Assume strrchr is always declared. */ |
553 | _GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings " | |
554 | "in some multibyte locales - " | |
555 | "use mbsrchr if you care about internationalization"); | |
f6ea5628 DJ |
556 | #endif |
557 | ||
558 | /* Search the next delimiter (char listed in DELIM) starting at *STRINGP. | |
559 | If one is found, overwrite it with a NUL, and advance *STRINGP | |
560 | to point to the next char after it. Otherwise, set *STRINGP to NULL. | |
561 | If *STRINGP was already NULL, nothing happens. | |
562 | Return the old value of *STRINGP. | |
563 | ||
564 | This is a variant of strtok() that is multithread-safe and supports | |
565 | empty fields. | |
566 | ||
567 | Caveat: It modifies the original string. | |
568 | Caveat: These functions cannot be used on constant strings. | |
569 | Caveat: The identity of the delimiting character is lost. | |
570 | Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
571 | characters are ASCII characters < 0x30. | |
572 | ||
573 | See also strtok_r(). */ | |
574 | #if @GNULIB_STRSEP@ | |
575 | # if ! @HAVE_STRSEP@ | |
f434ba03 PA |
576 | _GL_FUNCDECL_SYS (strsep, char *, |
577 | (char **restrict __stringp, char const *restrict __delim) | |
578 | _GL_ARG_NONNULL ((1, 2))); | |
f6ea5628 | 579 | # endif |
f434ba03 PA |
580 | _GL_CXXALIAS_SYS (strsep, char *, |
581 | (char **restrict __stringp, char const *restrict __delim)); | |
582 | _GL_CXXALIASWARN (strsep); | |
f6ea5628 DJ |
583 | # if defined GNULIB_POSIXCHECK |
584 | # undef strsep | |
f434ba03 PA |
585 | _GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings " |
586 | "in multibyte locales - " | |
587 | "use mbssep if you care about internationalization"); | |
f6ea5628 DJ |
588 | # endif |
589 | #elif defined GNULIB_POSIXCHECK | |
590 | # undef strsep | |
f434ba03 PA |
591 | # if HAVE_RAW_DECL_STRSEP |
592 | _GL_WARN_ON_USE (strsep, "strsep is unportable - " | |
593 | "use gnulib module strsep for portability"); | |
594 | # endif | |
f6ea5628 DJ |
595 | #endif |
596 | ||
597 | #if @GNULIB_STRSTR@ | |
598 | # if @REPLACE_STRSTR@ | |
f434ba03 PA |
599 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
600 | # define strstr rpl_strstr | |
601 | # endif | |
602 | _GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) | |
770d76d7 | 603 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
604 | _GL_ARG_NONNULL ((1, 2))); |
605 | _GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); | |
606 | # else | |
607 | /* On some systems, this function is defined as an overloaded function: | |
608 | extern "C++" { const char * strstr (const char *, const char *); } | |
609 | extern "C++" { char * strstr (char *, const char *); } */ | |
610 | _GL_CXXALIAS_SYS_CAST2 (strstr, | |
611 | char *, (const char *haystack, const char *needle), | |
612 | const char *, (const char *haystack, const char *needle)); | |
613 | # endif | |
770d76d7 | 614 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
615 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
616 | _GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); | |
617 | _GL_CXXALIASWARN1 (strstr, const char *, | |
618 | (const char *haystack, const char *needle)); | |
c0c3707f | 619 | # elif __GLIBC__ >= 2 |
f434ba03 | 620 | _GL_CXXALIASWARN (strstr); |
f6ea5628 DJ |
621 | # endif |
622 | #elif defined GNULIB_POSIXCHECK | |
623 | /* strstr() does not work with multibyte strings if the locale encoding is | |
624 | different from UTF-8: | |
625 | POSIX says that it operates on "strings", and "string" in POSIX is defined | |
626 | as a sequence of bytes, not of characters. */ | |
627 | # undef strstr | |
f434ba03 PA |
628 | /* Assume strstr is always declared. */ |
629 | _GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " | |
630 | "work correctly on character strings in most " | |
631 | "multibyte locales - " | |
632 | "use mbsstr if you care about internationalization, " | |
633 | "or use strstr if you care about speed"); | |
f6ea5628 DJ |
634 | #endif |
635 | ||
636 | /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive | |
637 | comparison. */ | |
638 | #if @GNULIB_STRCASESTR@ | |
639 | # if @REPLACE_STRCASESTR@ | |
f434ba03 PA |
640 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
641 | # define strcasestr rpl_strcasestr | |
642 | # endif | |
643 | _GL_FUNCDECL_RPL (strcasestr, char *, | |
644 | (const char *haystack, const char *needle) | |
770d76d7 PA |
645 | _GL_ATTRIBUTE_PURE |
646 | _GL_ARG_NONNULL ((1, 2))); | |
f434ba03 PA |
647 | _GL_CXXALIAS_RPL (strcasestr, char *, |
648 | (const char *haystack, const char *needle)); | |
649 | # else | |
650 | # if ! @HAVE_STRCASESTR@ | |
651 | _GL_FUNCDECL_SYS (strcasestr, char *, | |
652 | (const char *haystack, const char *needle) | |
770d76d7 PA |
653 | _GL_ATTRIBUTE_PURE |
654 | _GL_ARG_NONNULL ((1, 2))); | |
f434ba03 PA |
655 | # endif |
656 | /* On some systems, this function is defined as an overloaded function: | |
657 | extern "C++" { const char * strcasestr (const char *, const char *); } | |
658 | extern "C++" { char * strcasestr (char *, const char *); } */ | |
659 | _GL_CXXALIAS_SYS_CAST2 (strcasestr, | |
660 | char *, (const char *haystack, const char *needle), | |
661 | const char *, (const char *haystack, const char *needle)); | |
f6ea5628 | 662 | # endif |
770d76d7 | 663 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
664 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
665 | _GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle)); | |
666 | _GL_CXXALIASWARN1 (strcasestr, const char *, | |
667 | (const char *haystack, const char *needle)); | |
668 | # else | |
669 | _GL_CXXALIASWARN (strcasestr); | |
f6ea5628 DJ |
670 | # endif |
671 | #elif defined GNULIB_POSIXCHECK | |
672 | /* strcasestr() does not work with multibyte strings: | |
673 | It is a glibc extension, and glibc implements it only for unibyte | |
674 | locales. */ | |
675 | # undef strcasestr | |
f434ba03 PA |
676 | # if HAVE_RAW_DECL_STRCASESTR |
677 | _GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character " | |
678 | "strings in multibyte locales - " | |
679 | "use mbscasestr if you care about " | |
680 | "internationalization, or use c-strcasestr if you want " | |
681 | "a locale independent function"); | |
682 | # endif | |
f6ea5628 DJ |
683 | #endif |
684 | ||
685 | /* Parse S into tokens separated by characters in DELIM. | |
686 | If S is NULL, the saved pointer in SAVE_PTR is used as | |
687 | the next starting point. For example: | |
f434ba03 PA |
688 | char s[] = "-abc-=-def"; |
689 | char *sp; | |
690 | x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
691 | x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
692 | x = strtok_r(NULL, "=", &sp); // x = NULL | |
693 | // s = "abc\0-def\0" | |
f6ea5628 DJ |
694 | |
695 | This is a variant of strtok() that is multithread-safe. | |
696 | ||
697 | For the POSIX documentation for this function, see: | |
c0c3707f | 698 | https://pubs.opengroup.org/onlinepubs/9699919799/functions/strtok.html |
f6ea5628 DJ |
699 | |
700 | Caveat: It modifies the original string. | |
701 | Caveat: These functions cannot be used on constant strings. | |
702 | Caveat: The identity of the delimiting character is lost. | |
703 | Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
704 | characters are ASCII characters < 0x30. | |
705 | ||
706 | See also strsep(). */ | |
707 | #if @GNULIB_STRTOK_R@ | |
f434ba03 PA |
708 | # if @REPLACE_STRTOK_R@ |
709 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
710 | # undef strtok_r | |
711 | # define strtok_r rpl_strtok_r | |
712 | # endif | |
713 | _GL_FUNCDECL_RPL (strtok_r, char *, | |
714 | (char *restrict s, char const *restrict delim, | |
715 | char **restrict save_ptr) | |
716 | _GL_ARG_NONNULL ((2, 3))); | |
717 | _GL_CXXALIAS_RPL (strtok_r, char *, | |
718 | (char *restrict s, char const *restrict delim, | |
719 | char **restrict save_ptr)); | |
720 | # else | |
721 | # if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK | |
722 | # undef strtok_r | |
723 | # endif | |
724 | # if ! @HAVE_DECL_STRTOK_R@ | |
725 | _GL_FUNCDECL_SYS (strtok_r, char *, | |
726 | (char *restrict s, char const *restrict delim, | |
727 | char **restrict save_ptr) | |
728 | _GL_ARG_NONNULL ((2, 3))); | |
729 | # endif | |
730 | _GL_CXXALIAS_SYS (strtok_r, char *, | |
731 | (char *restrict s, char const *restrict delim, | |
732 | char **restrict save_ptr)); | |
f6ea5628 | 733 | # endif |
f434ba03 | 734 | _GL_CXXALIASWARN (strtok_r); |
f6ea5628 | 735 | # if defined GNULIB_POSIXCHECK |
f434ba03 PA |
736 | _GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character " |
737 | "strings in multibyte locales - " | |
738 | "use mbstok_r if you care about internationalization"); | |
f6ea5628 DJ |
739 | # endif |
740 | #elif defined GNULIB_POSIXCHECK | |
741 | # undef strtok_r | |
f434ba03 PA |
742 | # if HAVE_RAW_DECL_STRTOK_R |
743 | _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " | |
744 | "use gnulib module strtok_r for portability"); | |
745 | # endif | |
f6ea5628 DJ |
746 | #endif |
747 | ||
748 | ||
749 | /* The following functions are not specified by POSIX. They are gnulib | |
750 | extensions. */ | |
751 | ||
752 | #if @GNULIB_MBSLEN@ | |
753 | /* Return the number of multibyte characters in the character string STRING. | |
754 | This considers multibyte characters, unlike strlen, which counts bytes. */ | |
f434ba03 PA |
755 | # ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */ |
756 | # undef mbslen | |
757 | # endif | |
758 | # if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */ | |
759 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
760 | # define mbslen rpl_mbslen | |
761 | # endif | |
770d76d7 PA |
762 | _GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) |
763 | _GL_ATTRIBUTE_PURE | |
764 | _GL_ARG_NONNULL ((1))); | |
f434ba03 PA |
765 | _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); |
766 | # else | |
770d76d7 PA |
767 | _GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) |
768 | _GL_ATTRIBUTE_PURE | |
769 | _GL_ARG_NONNULL ((1))); | |
f434ba03 PA |
770 | _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); |
771 | # endif | |
772 | _GL_CXXALIASWARN (mbslen); | |
f6ea5628 DJ |
773 | #endif |
774 | ||
775 | #if @GNULIB_MBSNLEN@ | |
776 | /* Return the number of multibyte characters in the character string starting | |
777 | at STRING and ending at STRING + LEN. */ | |
f434ba03 | 778 | _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) |
770d76d7 | 779 | _GL_ATTRIBUTE_PURE |
f434ba03 | 780 | _GL_ARG_NONNULL ((1)); |
f6ea5628 DJ |
781 | #endif |
782 | ||
783 | #if @GNULIB_MBSCHR@ | |
784 | /* Locate the first single-byte character C in the character string STRING, | |
785 | and return a pointer to it. Return NULL if C is not found in STRING. | |
786 | Unlike strchr(), this function works correctly in multibyte locales with | |
787 | encodings such as GB18030. */ | |
f434ba03 PA |
788 | # if defined __hpux |
789 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
790 | # define mbschr rpl_mbschr /* avoid collision with HP-UX function */ | |
791 | # endif | |
792 | _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c) | |
770d76d7 | 793 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
794 | _GL_ARG_NONNULL ((1))); |
795 | _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c)); | |
796 | # else | |
797 | _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c) | |
770d76d7 | 798 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
799 | _GL_ARG_NONNULL ((1))); |
800 | _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c)); | |
801 | # endif | |
802 | _GL_CXXALIASWARN (mbschr); | |
f6ea5628 DJ |
803 | #endif |
804 | ||
805 | #if @GNULIB_MBSRCHR@ | |
806 | /* Locate the last single-byte character C in the character string STRING, | |
807 | and return a pointer to it. Return NULL if C is not found in STRING. | |
808 | Unlike strrchr(), this function works correctly in multibyte locales with | |
809 | encodings such as GB18030. */ | |
770d76d7 | 810 | # if defined __hpux || defined __INTERIX |
f434ba03 | 811 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
770d76d7 | 812 | # define mbsrchr rpl_mbsrchr /* avoid collision with system function */ |
f434ba03 PA |
813 | # endif |
814 | _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c) | |
770d76d7 | 815 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
816 | _GL_ARG_NONNULL ((1))); |
817 | _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c)); | |
818 | # else | |
819 | _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c) | |
770d76d7 | 820 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
821 | _GL_ARG_NONNULL ((1))); |
822 | _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c)); | |
823 | # endif | |
824 | _GL_CXXALIASWARN (mbsrchr); | |
f6ea5628 DJ |
825 | #endif |
826 | ||
827 | #if @GNULIB_MBSSTR@ | |
828 | /* Find the first occurrence of the character string NEEDLE in the character | |
829 | string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK. | |
830 | Unlike strstr(), this function works correctly in multibyte locales with | |
831 | encodings different from UTF-8. */ | |
f434ba03 | 832 | _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) |
770d76d7 | 833 | _GL_ATTRIBUTE_PURE |
f434ba03 | 834 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
835 | #endif |
836 | ||
837 | #if @GNULIB_MBSCASECMP@ | |
838 | /* Compare the character strings S1 and S2, ignoring case, returning less than, | |
839 | equal to or greater than zero if S1 is lexicographically less than, equal to | |
840 | or greater than S2. | |
841 | Note: This function may, in multibyte locales, return 0 for strings of | |
842 | different lengths! | |
843 | Unlike strcasecmp(), this function works correctly in multibyte locales. */ | |
f434ba03 | 844 | _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) |
770d76d7 | 845 | _GL_ATTRIBUTE_PURE |
f434ba03 | 846 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
847 | #endif |
848 | ||
849 | #if @GNULIB_MBSNCASECMP@ | |
850 | /* Compare the initial segment of the character string S1 consisting of at most | |
851 | N characters with the initial segment of the character string S2 consisting | |
852 | of at most N characters, ignoring case, returning less than, equal to or | |
853 | greater than zero if the initial segment of S1 is lexicographically less | |
854 | than, equal to or greater than the initial segment of S2. | |
855 | Note: This function may, in multibyte locales, return 0 for initial segments | |
856 | of different lengths! | |
857 | Unlike strncasecmp(), this function works correctly in multibyte locales. | |
858 | But beware that N is not a byte count but a character count! */ | |
f434ba03 | 859 | _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n) |
770d76d7 | 860 | _GL_ATTRIBUTE_PURE |
f434ba03 | 861 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
862 | #endif |
863 | ||
864 | #if @GNULIB_MBSPCASECMP@ | |
865 | /* Compare the initial segment of the character string STRING consisting of | |
866 | at most mbslen (PREFIX) characters with the character string PREFIX, | |
770d76d7 PA |
867 | ignoring case. If the two match, return a pointer to the first byte |
868 | after this prefix in STRING. Otherwise, return NULL. | |
869 | Note: This function may, in multibyte locales, return non-NULL if STRING | |
870 | is of smaller length than PREFIX! | |
f6ea5628 DJ |
871 | Unlike strncasecmp(), this function works correctly in multibyte |
872 | locales. */ | |
f434ba03 | 873 | _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) |
770d76d7 | 874 | _GL_ATTRIBUTE_PURE |
f434ba03 | 875 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
876 | #endif |
877 | ||
878 | #if @GNULIB_MBSCASESTR@ | |
879 | /* Find the first occurrence of the character string NEEDLE in the character | |
880 | string HAYSTACK, using case-insensitive comparison. | |
881 | Note: This function may, in multibyte locales, return success even if | |
882 | strlen (haystack) < strlen (needle) ! | |
883 | Unlike strcasestr(), this function works correctly in multibyte locales. */ | |
f434ba03 | 884 | _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) |
770d76d7 | 885 | _GL_ATTRIBUTE_PURE |
f434ba03 | 886 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
887 | #endif |
888 | ||
889 | #if @GNULIB_MBSCSPN@ | |
890 | /* Find the first occurrence in the character string STRING of any character | |
891 | in the character string ACCEPT. Return the number of bytes from the | |
892 | beginning of the string to this occurrence, or to the end of the string | |
893 | if none exists. | |
894 | Unlike strcspn(), this function works correctly in multibyte locales. */ | |
f434ba03 | 895 | _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) |
770d76d7 | 896 | _GL_ATTRIBUTE_PURE |
f434ba03 | 897 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
898 | #endif |
899 | ||
900 | #if @GNULIB_MBSPBRK@ | |
901 | /* Find the first occurrence in the character string STRING of any character | |
902 | in the character string ACCEPT. Return the pointer to it, or NULL if none | |
903 | exists. | |
904 | Unlike strpbrk(), this function works correctly in multibyte locales. */ | |
f434ba03 PA |
905 | # if defined __hpux |
906 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
907 | # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ | |
908 | # endif | |
909 | _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept) | |
770d76d7 | 910 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
911 | _GL_ARG_NONNULL ((1, 2))); |
912 | _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept)); | |
913 | # else | |
914 | _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept) | |
770d76d7 | 915 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
916 | _GL_ARG_NONNULL ((1, 2))); |
917 | _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept)); | |
918 | # endif | |
919 | _GL_CXXALIASWARN (mbspbrk); | |
f6ea5628 DJ |
920 | #endif |
921 | ||
922 | #if @GNULIB_MBSSPN@ | |
923 | /* Find the first occurrence in the character string STRING of any character | |
924 | not in the character string REJECT. Return the number of bytes from the | |
925 | beginning of the string to this occurrence, or to the end of the string | |
926 | if none exists. | |
927 | Unlike strspn(), this function works correctly in multibyte locales. */ | |
f434ba03 | 928 | _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) |
770d76d7 | 929 | _GL_ATTRIBUTE_PURE |
f434ba03 | 930 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
931 | #endif |
932 | ||
933 | #if @GNULIB_MBSSEP@ | |
934 | /* Search the next delimiter (multibyte character listed in the character | |
935 | string DELIM) starting at the character string *STRINGP. | |
936 | If one is found, overwrite it with a NUL, and advance *STRINGP to point | |
937 | to the next multibyte character after it. Otherwise, set *STRINGP to NULL. | |
938 | If *STRINGP was already NULL, nothing happens. | |
939 | Return the old value of *STRINGP. | |
940 | ||
941 | This is a variant of mbstok_r() that supports empty fields. | |
942 | ||
943 | Caveat: It modifies the original string. | |
944 | Caveat: These functions cannot be used on constant strings. | |
945 | Caveat: The identity of the delimiting character is lost. | |
946 | ||
947 | See also mbstok_r(). */ | |
f434ba03 PA |
948 | _GL_EXTERN_C char * mbssep (char **stringp, const char *delim) |
949 | _GL_ARG_NONNULL ((1, 2)); | |
f6ea5628 DJ |
950 | #endif |
951 | ||
952 | #if @GNULIB_MBSTOK_R@ | |
953 | /* Parse the character string STRING into tokens separated by characters in | |
954 | the character string DELIM. | |
955 | If STRING is NULL, the saved pointer in SAVE_PTR is used as | |
956 | the next starting point. For example: | |
f434ba03 PA |
957 | char s[] = "-abc-=-def"; |
958 | char *sp; | |
959 | x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
960 | x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
961 | x = mbstok_r(NULL, "=", &sp); // x = NULL | |
962 | // s = "abc\0-def\0" | |
f6ea5628 DJ |
963 | |
964 | Caveat: It modifies the original string. | |
965 | Caveat: These functions cannot be used on constant strings. | |
966 | Caveat: The identity of the delimiting character is lost. | |
967 | ||
968 | See also mbssep(). */ | |
f434ba03 PA |
969 | _GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr) |
970 | _GL_ARG_NONNULL ((2, 3)); | |
f6ea5628 DJ |
971 | #endif |
972 | ||
973 | /* Map any int, typically from errno, into an error message. */ | |
974 | #if @GNULIB_STRERROR@ | |
975 | # if @REPLACE_STRERROR@ | |
f434ba03 PA |
976 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
977 | # undef strerror | |
978 | # define strerror rpl_strerror | |
979 | # endif | |
980 | _GL_FUNCDECL_RPL (strerror, char *, (int)); | |
981 | _GL_CXXALIAS_RPL (strerror, char *, (int)); | |
982 | # else | |
983 | _GL_CXXALIAS_SYS (strerror, char *, (int)); | |
f6ea5628 | 984 | # endif |
c0c3707f | 985 | # if __GLIBC__ >= 2 |
f434ba03 | 986 | _GL_CXXALIASWARN (strerror); |
c0c3707f | 987 | # endif |
f6ea5628 DJ |
988 | #elif defined GNULIB_POSIXCHECK |
989 | # undef strerror | |
f434ba03 PA |
990 | /* Assume strerror is always declared. */ |
991 | _GL_WARN_ON_USE (strerror, "strerror is unportable - " | |
992 | "use gnulib module strerror to guarantee non-NULL result"); | |
f6ea5628 DJ |
993 | #endif |
994 | ||
770d76d7 PA |
995 | /* Map any int, typically from errno, into an error message. Multithread-safe. |
996 | Uses the POSIX declaration, not the glibc declaration. */ | |
997 | #if @GNULIB_STRERROR_R@ | |
998 | # if @REPLACE_STRERROR_R@ | |
999 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
1000 | # undef strerror_r | |
1001 | # define strerror_r rpl_strerror_r | |
1002 | # endif | |
1003 | _GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen) | |
1004 | _GL_ARG_NONNULL ((2))); | |
1005 | _GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)); | |
1006 | # else | |
1007 | # if !@HAVE_DECL_STRERROR_R@ | |
1008 | _GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen) | |
1009 | _GL_ARG_NONNULL ((2))); | |
1010 | # endif | |
1011 | _GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)); | |
1012 | # endif | |
1013 | # if @HAVE_DECL_STRERROR_R@ | |
1014 | _GL_CXXALIASWARN (strerror_r); | |
1015 | # endif | |
1016 | #elif defined GNULIB_POSIXCHECK | |
1017 | # undef strerror_r | |
1018 | # if HAVE_RAW_DECL_STRERROR_R | |
1019 | _GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - " | |
1020 | "use gnulib module strerror_r-posix for portability"); | |
1021 | # endif | |
1022 | #endif | |
1023 | ||
f6ea5628 DJ |
1024 | #if @GNULIB_STRSIGNAL@ |
1025 | # if @REPLACE_STRSIGNAL@ | |
f434ba03 PA |
1026 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
1027 | # define strsignal rpl_strsignal | |
1028 | # endif | |
1029 | _GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); | |
1030 | _GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); | |
1031 | # else | |
1032 | # if ! @HAVE_DECL_STRSIGNAL@ | |
1033 | _GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); | |
1034 | # endif | |
1035 | /* Need to cast, because on Cygwin 1.5.x systems, the return type is | |
1036 | 'const char *'. */ | |
1037 | _GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); | |
f6ea5628 | 1038 | # endif |
f434ba03 | 1039 | _GL_CXXALIASWARN (strsignal); |
f6ea5628 DJ |
1040 | #elif defined GNULIB_POSIXCHECK |
1041 | # undef strsignal | |
f434ba03 PA |
1042 | # if HAVE_RAW_DECL_STRSIGNAL |
1043 | _GL_WARN_ON_USE (strsignal, "strsignal is unportable - " | |
1044 | "use gnulib module strsignal for portability"); | |
1045 | # endif | |
f6ea5628 DJ |
1046 | #endif |
1047 | ||
f434ba03 PA |
1048 | #if @GNULIB_STRVERSCMP@ |
1049 | # if !@HAVE_STRVERSCMP@ | |
1050 | _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) | |
770d76d7 | 1051 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
1052 | _GL_ARG_NONNULL ((1, 2))); |
1053 | # endif | |
1054 | _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); | |
1055 | _GL_CXXALIASWARN (strverscmp); | |
1056 | #elif defined GNULIB_POSIXCHECK | |
1057 | # undef strverscmp | |
1058 | # if HAVE_RAW_DECL_STRVERSCMP | |
1059 | _GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " | |
1060 | "use gnulib module strverscmp for portability"); | |
1061 | # endif | |
f6ea5628 DJ |
1062 | #endif |
1063 | ||
f434ba03 | 1064 | |
770d76d7 PA |
1065 | #endif /* _@GUARD_PREFIX@_STRING_H */ |
1066 | #endif /* _@GUARD_PREFIX@_STRING_H */ | |
4a626d0a | 1067 | #endif |