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24d56127 LC |
1 | /* A GNU-like <string.h>. |
2 | ||
61cd9dc9 | 3 | Copyright (C) 1995-1996, 2001-2010 Free Software Foundation, Inc. |
24d56127 LC |
4 | |
5 | This program is free software; you can redistribute it and/or modify | |
6 | it under the terms of the GNU Lesser General Public License as published by | |
7 | the Free Software Foundation; either version 2, 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 Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser 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 | ||
8912421c LC |
31 | /* NetBSD 5.0 mis-defines NULL. */ |
32 | #include <stddef.h> | |
24d56127 | 33 | |
61cd9dc9 LC |
34 | /* MirBSD defines mbslen as a macro. */ |
35 | #if @GNULIB_MBSLEN@ && defined __MirBSD__ | |
36 | # include <wchar.h> | |
37 | #endif | |
38 | ||
24d56127 LC |
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 | |
9157d901 | 44 | #endif |
24d56127 | 45 | /* The attribute __pure__ was added in gcc 2.96. */ |
9157d901 LC |
46 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96) |
47 | # define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__)) | |
48 | #else | |
49 | # define _GL_ATTRIBUTE_PURE /* empty */ | |
24d56127 LC |
50 | #endif |
51 | ||
52 | ||
f4c79b3c LC |
53 | /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */ |
54 | ||
1cd4fffc LC |
55 | /* The definition of _GL_ARG_NONNULL is copied here. */ |
56 | ||
61cd9dc9 LC |
57 | /* The definition of _GL_WARN_ON_USE is copied here. */ |
58 | ||
24d56127 | 59 | |
ffca4c22 AW |
60 | /* Return the first instance of C within N bytes of S, or NULL. */ |
61 | #if @GNULIB_MEMCHR@ | |
62 | # if @REPLACE_MEMCHR@ | |
f4c79b3c LC |
63 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
64 | # define memchr rpl_memchr | |
65 | # endif | |
66 | _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) | |
9157d901 | 67 | _GL_ATTRIBUTE_PURE |
f4c79b3c LC |
68 | _GL_ARG_NONNULL ((1))); |
69 | _GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n)); | |
70 | # else | |
a927b6c1 LC |
71 | # if ! @HAVE_MEMCHR@ |
72 | _GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n) | |
9157d901 | 73 | _GL_ATTRIBUTE_PURE |
a927b6c1 LC |
74 | _GL_ARG_NONNULL ((1))); |
75 | # endif | |
f4c79b3c LC |
76 | /* On some systems, this function is defined as an overloaded function: |
77 | extern "C" { const void * std::memchr (const void *, int, size_t); } | |
78 | extern "C++" { void * std::memchr (void *, int, size_t); } */ | |
79 | _GL_CXXALIAS_SYS_CAST2 (memchr, | |
80 | void *, (void const *__s, int __c, size_t __n), | |
81 | void const *, (void const *__s, int __c, size_t __n)); | |
82 | # endif | |
83 | # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
84 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
85 | _GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n)); | |
86 | _GL_CXXALIASWARN1 (memchr, void const *, | |
87 | (void const *__s, int __c, size_t __n)); | |
88 | # else | |
89 | _GL_CXXALIASWARN (memchr); | |
ffca4c22 AW |
90 | # endif |
91 | #elif defined GNULIB_POSIXCHECK | |
92 | # undef memchr | |
61cd9dc9 LC |
93 | /* Assume memchr is always declared. */ |
94 | _GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - " | |
95 | "use gnulib module memchr for portability" ); | |
ffca4c22 AW |
96 | #endif |
97 | ||
24d56127 LC |
98 | /* Return the first occurrence of NEEDLE in HAYSTACK. */ |
99 | #if @GNULIB_MEMMEM@ | |
100 | # if @REPLACE_MEMMEM@ | |
f4c79b3c LC |
101 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
102 | # define memmem rpl_memmem | |
103 | # endif | |
104 | _GL_FUNCDECL_RPL (memmem, void *, | |
105 | (void const *__haystack, size_t __haystack_len, | |
106 | void const *__needle, size_t __needle_len) | |
9157d901 LC |
107 | _GL_ATTRIBUTE_PURE |
108 | _GL_ARG_NONNULL ((1, 3))); | |
f4c79b3c LC |
109 | _GL_CXXALIAS_RPL (memmem, void *, |
110 | (void const *__haystack, size_t __haystack_len, | |
111 | void const *__needle, size_t __needle_len)); | |
112 | # else | |
113 | # if ! @HAVE_DECL_MEMMEM@ | |
114 | _GL_FUNCDECL_SYS (memmem, void *, | |
115 | (void const *__haystack, size_t __haystack_len, | |
116 | void const *__needle, size_t __needle_len) | |
9157d901 LC |
117 | _GL_ATTRIBUTE_PURE |
118 | _GL_ARG_NONNULL ((1, 3))); | |
f4c79b3c LC |
119 | # endif |
120 | _GL_CXXALIAS_SYS (memmem, void *, | |
121 | (void const *__haystack, size_t __haystack_len, | |
122 | void const *__needle, size_t __needle_len)); | |
123 | # endif | |
124 | _GL_CXXALIASWARN (memmem); | |
24d56127 LC |
125 | #elif defined GNULIB_POSIXCHECK |
126 | # undef memmem | |
61cd9dc9 LC |
127 | # if HAVE_RAW_DECL_MEMMEM |
128 | _GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - " | |
129 | "use gnulib module memmem-simple for portability, " | |
130 | "and module memmem for speed" ); | |
131 | # endif | |
24d56127 LC |
132 | #endif |
133 | ||
134 | /* Copy N bytes of SRC to DEST, return pointer to bytes after the | |
135 | last written byte. */ | |
136 | #if @GNULIB_MEMPCPY@ | |
137 | # if ! @HAVE_MEMPCPY@ | |
f4c79b3c LC |
138 | _GL_FUNCDECL_SYS (mempcpy, void *, |
139 | (void *restrict __dest, void const *restrict __src, | |
140 | size_t __n) | |
141 | _GL_ARG_NONNULL ((1, 2))); | |
142 | # endif | |
143 | _GL_CXXALIAS_SYS (mempcpy, void *, | |
144 | (void *restrict __dest, void const *restrict __src, | |
145 | size_t __n)); | |
146 | _GL_CXXALIASWARN (mempcpy); | |
24d56127 LC |
147 | #elif defined GNULIB_POSIXCHECK |
148 | # undef mempcpy | |
61cd9dc9 LC |
149 | # if HAVE_RAW_DECL_MEMPCPY |
150 | _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " | |
151 | "use gnulib module mempcpy for portability"); | |
152 | # endif | |
24d56127 LC |
153 | #endif |
154 | ||
155 | /* Search backwards through a block for a byte (specified as an int). */ | |
156 | #if @GNULIB_MEMRCHR@ | |
157 | # if ! @HAVE_DECL_MEMRCHR@ | |
f4c79b3c | 158 | _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) |
9157d901 | 159 | _GL_ATTRIBUTE_PURE |
f4c79b3c LC |
160 | _GL_ARG_NONNULL ((1))); |
161 | # endif | |
162 | /* On some systems, this function is defined as an overloaded function: | |
163 | extern "C++" { const void * std::memrchr (const void *, int, size_t); } | |
164 | extern "C++" { void * std::memrchr (void *, int, size_t); } */ | |
165 | _GL_CXXALIAS_SYS_CAST2 (memrchr, | |
166 | void *, (void const *, int, size_t), | |
167 | void const *, (void const *, int, size_t)); | |
168 | # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
169 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
170 | _GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t)); | |
171 | _GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t)); | |
172 | # else | |
173 | _GL_CXXALIASWARN (memrchr); | |
24d56127 LC |
174 | # endif |
175 | #elif defined GNULIB_POSIXCHECK | |
176 | # undef memrchr | |
61cd9dc9 LC |
177 | # if HAVE_RAW_DECL_MEMRCHR |
178 | _GL_WARN_ON_USE (memrchr, "memrchr is unportable - " | |
179 | "use gnulib module memrchr for portability"); | |
180 | # endif | |
24d56127 LC |
181 | #endif |
182 | ||
183 | /* Find the first occurrence of C in S. More efficient than | |
184 | memchr(S,C,N), at the expense of undefined behavior if C does not | |
185 | occur within N bytes. */ | |
186 | #if @GNULIB_RAWMEMCHR@ | |
187 | # if ! @HAVE_RAWMEMCHR@ | |
f4c79b3c | 188 | _GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) |
9157d901 | 189 | _GL_ATTRIBUTE_PURE |
f4c79b3c LC |
190 | _GL_ARG_NONNULL ((1))); |
191 | # endif | |
192 | /* On some systems, this function is defined as an overloaded function: | |
193 | extern "C++" { const void * std::rawmemchr (const void *, int); } | |
194 | extern "C++" { void * std::rawmemchr (void *, int); } */ | |
195 | _GL_CXXALIAS_SYS_CAST2 (rawmemchr, | |
196 | void *, (void const *__s, int __c_in), | |
197 | void const *, (void const *__s, int __c_in)); | |
198 | # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
199 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
200 | _GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in)); | |
201 | _GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in)); | |
202 | # else | |
203 | _GL_CXXALIASWARN (rawmemchr); | |
24d56127 LC |
204 | # endif |
205 | #elif defined GNULIB_POSIXCHECK | |
206 | # undef rawmemchr | |
61cd9dc9 LC |
207 | # if HAVE_RAW_DECL_RAWMEMCHR |
208 | _GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - " | |
209 | "use gnulib module rawmemchr for portability"); | |
210 | # endif | |
24d56127 LC |
211 | #endif |
212 | ||
213 | /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */ | |
214 | #if @GNULIB_STPCPY@ | |
215 | # if ! @HAVE_STPCPY@ | |
f4c79b3c LC |
216 | _GL_FUNCDECL_SYS (stpcpy, char *, |
217 | (char *restrict __dst, char const *restrict __src) | |
218 | _GL_ARG_NONNULL ((1, 2))); | |
24d56127 | 219 | # endif |
f4c79b3c LC |
220 | _GL_CXXALIAS_SYS (stpcpy, char *, |
221 | (char *restrict __dst, char const *restrict __src)); | |
222 | _GL_CXXALIASWARN (stpcpy); | |
24d56127 LC |
223 | #elif defined GNULIB_POSIXCHECK |
224 | # undef stpcpy | |
61cd9dc9 LC |
225 | # if HAVE_RAW_DECL_STPCPY |
226 | _GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " | |
227 | "use gnulib module stpcpy for portability"); | |
228 | # endif | |
24d56127 LC |
229 | #endif |
230 | ||
231 | /* Copy no more than N bytes of SRC to DST, returning a pointer past the | |
232 | last non-NUL byte written into DST. */ | |
233 | #if @GNULIB_STPNCPY@ | |
a927b6c1 | 234 | # if @REPLACE_STPNCPY@ |
f4c79b3c | 235 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
9157d901 | 236 | # undef stpncpy |
f4c79b3c LC |
237 | # define stpncpy rpl_stpncpy |
238 | # endif | |
239 | _GL_FUNCDECL_RPL (stpncpy, char *, | |
240 | (char *restrict __dst, char const *restrict __src, | |
241 | size_t __n) | |
242 | _GL_ARG_NONNULL ((1, 2))); | |
243 | _GL_CXXALIAS_RPL (stpncpy, char *, | |
244 | (char *restrict __dst, char const *restrict __src, | |
245 | size_t __n)); | |
246 | # else | |
a927b6c1 LC |
247 | # if ! @HAVE_STPNCPY@ |
248 | _GL_FUNCDECL_SYS (stpncpy, char *, | |
249 | (char *restrict __dst, char const *restrict __src, | |
250 | size_t __n) | |
251 | _GL_ARG_NONNULL ((1, 2))); | |
252 | # endif | |
f4c79b3c LC |
253 | _GL_CXXALIAS_SYS (stpncpy, char *, |
254 | (char *restrict __dst, char const *restrict __src, | |
255 | size_t __n)); | |
256 | # endif | |
257 | _GL_CXXALIASWARN (stpncpy); | |
24d56127 LC |
258 | #elif defined GNULIB_POSIXCHECK |
259 | # undef stpncpy | |
61cd9dc9 LC |
260 | # if HAVE_RAW_DECL_STPNCPY |
261 | _GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " | |
262 | "use gnulib module stpncpy for portability"); | |
263 | # endif | |
24d56127 LC |
264 | #endif |
265 | ||
266 | #if defined GNULIB_POSIXCHECK | |
267 | /* strchr() does not work with multibyte strings if the locale encoding is | |
268 | GB18030 and the character to be searched is a digit. */ | |
269 | # undef strchr | |
61cd9dc9 LC |
270 | /* Assume strchr is always declared. */ |
271 | _GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings " | |
272 | "in some multibyte locales - " | |
273 | "use mbschr if you care about internationalization"); | |
24d56127 LC |
274 | #endif |
275 | ||
276 | /* Find the first occurrence of C in S or the final NUL byte. */ | |
277 | #if @GNULIB_STRCHRNUL@ | |
278 | # if ! @HAVE_STRCHRNUL@ | |
f4c79b3c | 279 | _GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in) |
9157d901 | 280 | _GL_ATTRIBUTE_PURE |
f4c79b3c LC |
281 | _GL_ARG_NONNULL ((1))); |
282 | # endif | |
283 | /* On some systems, this function is defined as an overloaded function: | |
284 | extern "C++" { const char * std::strchrnul (const char *, int); } | |
285 | extern "C++" { char * std::strchrnul (char *, int); } */ | |
286 | _GL_CXXALIAS_SYS_CAST2 (strchrnul, | |
287 | char *, (char const *__s, int __c_in), | |
288 | char const *, (char const *__s, int __c_in)); | |
289 | # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
290 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
291 | _GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in)); | |
292 | _GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in)); | |
293 | # else | |
294 | _GL_CXXALIASWARN (strchrnul); | |
24d56127 LC |
295 | # endif |
296 | #elif defined GNULIB_POSIXCHECK | |
297 | # undef strchrnul | |
61cd9dc9 LC |
298 | # if HAVE_RAW_DECL_STRCHRNUL |
299 | _GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " | |
300 | "use gnulib module strchrnul for portability"); | |
301 | # endif | |
24d56127 LC |
302 | #endif |
303 | ||
304 | /* Duplicate S, returning an identical malloc'd string. */ | |
305 | #if @GNULIB_STRDUP@ | |
306 | # if @REPLACE_STRDUP@ | |
f4c79b3c LC |
307 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
308 | # undef strdup | |
309 | # define strdup rpl_strdup | |
310 | # endif | |
311 | _GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); | |
312 | _GL_CXXALIAS_RPL (strdup, char *, (char const *__s)); | |
313 | # else | |
9157d901 LC |
314 | # if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup |
315 | /* strdup exists as a function and as a macro. Get rid of the macro. */ | |
316 | # undef strdup | |
317 | # endif | |
f4c79b3c LC |
318 | # if !(@HAVE_DECL_STRDUP@ || defined strdup) |
319 | _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); | |
320 | # endif | |
321 | _GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); | |
322 | # endif | |
323 | _GL_CXXALIASWARN (strdup); | |
24d56127 LC |
324 | #elif defined GNULIB_POSIXCHECK |
325 | # undef strdup | |
61cd9dc9 LC |
326 | # if HAVE_RAW_DECL_STRDUP |
327 | _GL_WARN_ON_USE (strdup, "strdup is unportable - " | |
328 | "use gnulib module strdup for portability"); | |
329 | # endif | |
24d56127 LC |
330 | #endif |
331 | ||
a927b6c1 LC |
332 | /* Append no more than N characters from SRC onto DEST. */ |
333 | #if @GNULIB_STRNCAT@ | |
334 | # if @REPLACE_STRNCAT@ | |
335 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
336 | # undef strncat | |
337 | # define strncat rpl_strncat | |
338 | # endif | |
339 | _GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n) | |
340 | _GL_ARG_NONNULL ((1, 2))); | |
341 | _GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n)); | |
342 | # else | |
343 | _GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n)); | |
344 | # endif | |
345 | _GL_CXXALIASWARN (strncat); | |
346 | #elif defined GNULIB_POSIXCHECK | |
347 | # undef strncat | |
348 | # if HAVE_RAW_DECL_STRNCAT | |
349 | _GL_WARN_ON_USE (strncat, "strncat is unportable - " | |
350 | "use gnulib module strncat for portability"); | |
351 | # endif | |
352 | #endif | |
353 | ||
24d56127 LC |
354 | /* Return a newly allocated copy of at most N bytes of STRING. */ |
355 | #if @GNULIB_STRNDUP@ | |
8912421c | 356 | # if @REPLACE_STRNDUP@ |
f4c79b3c LC |
357 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
358 | # undef strndup | |
359 | # define strndup rpl_strndup | |
360 | # endif | |
361 | _GL_FUNCDECL_RPL (strndup, char *, (char const *__string, size_t __n) | |
362 | _GL_ARG_NONNULL ((1))); | |
363 | _GL_CXXALIAS_RPL (strndup, char *, (char const *__string, size_t __n)); | |
364 | # else | |
365 | # if ! @HAVE_DECL_STRNDUP@ | |
366 | _GL_FUNCDECL_SYS (strndup, char *, (char const *__string, size_t __n) | |
367 | _GL_ARG_NONNULL ((1))); | |
368 | # endif | |
369 | _GL_CXXALIAS_SYS (strndup, char *, (char const *__string, size_t __n)); | |
370 | # endif | |
371 | _GL_CXXALIASWARN (strndup); | |
24d56127 LC |
372 | #elif defined GNULIB_POSIXCHECK |
373 | # undef strndup | |
61cd9dc9 LC |
374 | # if HAVE_RAW_DECL_STRNDUP |
375 | _GL_WARN_ON_USE (strndup, "strndup is unportable - " | |
376 | "use gnulib module strndup for portability"); | |
377 | # endif | |
24d56127 LC |
378 | #endif |
379 | ||
380 | /* Find the length (number of bytes) of STRING, but scan at most | |
381 | MAXLEN bytes. If no '\0' terminator is found in that many bytes, | |
382 | return MAXLEN. */ | |
383 | #if @GNULIB_STRNLEN@ | |
a927b6c1 LC |
384 | # if @REPLACE_STRNLEN@ |
385 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
386 | # undef strnlen | |
387 | # define strnlen rpl_strnlen | |
388 | # endif | |
389 | _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__string, size_t __maxlen) | |
9157d901 | 390 | _GL_ATTRIBUTE_PURE |
a927b6c1 LC |
391 | _GL_ARG_NONNULL ((1))); |
392 | _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__string, size_t __maxlen)); | |
393 | # else | |
394 | # if ! @HAVE_DECL_STRNLEN@ | |
f4c79b3c | 395 | _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__string, size_t __maxlen) |
9157d901 | 396 | _GL_ATTRIBUTE_PURE |
f4c79b3c | 397 | _GL_ARG_NONNULL ((1))); |
a927b6c1 | 398 | # endif |
f4c79b3c | 399 | _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__string, size_t __maxlen)); |
a927b6c1 | 400 | # endif |
f4c79b3c | 401 | _GL_CXXALIASWARN (strnlen); |
24d56127 LC |
402 | #elif defined GNULIB_POSIXCHECK |
403 | # undef strnlen | |
61cd9dc9 LC |
404 | # if HAVE_RAW_DECL_STRNLEN |
405 | _GL_WARN_ON_USE (strnlen, "strnlen is unportable - " | |
406 | "use gnulib module strnlen for portability"); | |
407 | # endif | |
24d56127 LC |
408 | #endif |
409 | ||
410 | #if defined GNULIB_POSIXCHECK | |
411 | /* strcspn() assumes the second argument is a list of single-byte characters. | |
412 | Even in this simple case, it does not work with multibyte strings if the | |
413 | locale encoding is GB18030 and one of the characters to be searched is a | |
414 | digit. */ | |
415 | # undef strcspn | |
61cd9dc9 LC |
416 | /* Assume strcspn is always declared. */ |
417 | _GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " | |
418 | "in multibyte locales - " | |
419 | "use mbscspn if you care about internationalization"); | |
24d56127 LC |
420 | #endif |
421 | ||
422 | /* Find the first occurrence in S of any character in ACCEPT. */ | |
423 | #if @GNULIB_STRPBRK@ | |
424 | # if ! @HAVE_STRPBRK@ | |
f4c79b3c | 425 | _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) |
9157d901 | 426 | _GL_ATTRIBUTE_PURE |
f4c79b3c LC |
427 | _GL_ARG_NONNULL ((1, 2))); |
428 | # endif | |
429 | /* On some systems, this function is defined as an overloaded function: | |
430 | extern "C" { const char * strpbrk (const char *, const char *); } | |
431 | extern "C++" { char * strpbrk (char *, const char *); } */ | |
432 | _GL_CXXALIAS_SYS_CAST2 (strpbrk, | |
433 | char *, (char const *__s, char const *__accept), | |
434 | const char *, (char const *__s, char const *__accept)); | |
435 | # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
436 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
437 | _GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); | |
438 | _GL_CXXALIASWARN1 (strpbrk, char const *, | |
439 | (char const *__s, char const *__accept)); | |
440 | # else | |
441 | _GL_CXXALIASWARN (strpbrk); | |
24d56127 LC |
442 | # endif |
443 | # if defined GNULIB_POSIXCHECK | |
444 | /* strpbrk() assumes the second argument is a list of single-byte characters. | |
445 | Even in this simple case, it does not work with multibyte strings if the | |
446 | locale encoding is GB18030 and one of the characters to be searched is a | |
447 | digit. */ | |
448 | # undef strpbrk | |
61cd9dc9 LC |
449 | _GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings " |
450 | "in multibyte locales - " | |
451 | "use mbspbrk if you care about internationalization"); | |
24d56127 LC |
452 | # endif |
453 | #elif defined GNULIB_POSIXCHECK | |
454 | # undef strpbrk | |
61cd9dc9 LC |
455 | # if HAVE_RAW_DECL_STRPBRK |
456 | _GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - " | |
457 | "use gnulib module strpbrk for portability"); | |
458 | # endif | |
24d56127 LC |
459 | #endif |
460 | ||
461 | #if defined GNULIB_POSIXCHECK | |
462 | /* strspn() assumes the second argument is a list of single-byte characters. | |
463 | Even in this simple case, it cannot work with multibyte strings. */ | |
464 | # undef strspn | |
61cd9dc9 LC |
465 | /* Assume strspn is always declared. */ |
466 | _GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings " | |
467 | "in multibyte locales - " | |
468 | "use mbsspn if you care about internationalization"); | |
24d56127 LC |
469 | #endif |
470 | ||
471 | #if defined GNULIB_POSIXCHECK | |
472 | /* strrchr() does not work with multibyte strings if the locale encoding is | |
473 | GB18030 and the character to be searched is a digit. */ | |
474 | # undef strrchr | |
61cd9dc9 LC |
475 | /* Assume strrchr is always declared. */ |
476 | _GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings " | |
477 | "in some multibyte locales - " | |
478 | "use mbsrchr if you care about internationalization"); | |
24d56127 LC |
479 | #endif |
480 | ||
481 | /* Search the next delimiter (char listed in DELIM) starting at *STRINGP. | |
482 | If one is found, overwrite it with a NUL, and advance *STRINGP | |
483 | to point to the next char after it. Otherwise, set *STRINGP to NULL. | |
484 | If *STRINGP was already NULL, nothing happens. | |
485 | Return the old value of *STRINGP. | |
486 | ||
487 | This is a variant of strtok() that is multithread-safe and supports | |
488 | empty fields. | |
489 | ||
490 | Caveat: It modifies the original string. | |
491 | Caveat: These functions cannot be used on constant strings. | |
492 | Caveat: The identity of the delimiting character is lost. | |
493 | Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
494 | characters are ASCII characters < 0x30. | |
495 | ||
496 | See also strtok_r(). */ | |
497 | #if @GNULIB_STRSEP@ | |
498 | # if ! @HAVE_STRSEP@ | |
f4c79b3c LC |
499 | _GL_FUNCDECL_SYS (strsep, char *, |
500 | (char **restrict __stringp, char const *restrict __delim) | |
501 | _GL_ARG_NONNULL ((1, 2))); | |
24d56127 | 502 | # endif |
f4c79b3c LC |
503 | _GL_CXXALIAS_SYS (strsep, char *, |
504 | (char **restrict __stringp, char const *restrict __delim)); | |
505 | _GL_CXXALIASWARN (strsep); | |
24d56127 LC |
506 | # if defined GNULIB_POSIXCHECK |
507 | # undef strsep | |
61cd9dc9 LC |
508 | _GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings " |
509 | "in multibyte locales - " | |
510 | "use mbssep if you care about internationalization"); | |
24d56127 LC |
511 | # endif |
512 | #elif defined GNULIB_POSIXCHECK | |
513 | # undef strsep | |
61cd9dc9 LC |
514 | # if HAVE_RAW_DECL_STRSEP |
515 | _GL_WARN_ON_USE (strsep, "strsep is unportable - " | |
516 | "use gnulib module strsep for portability"); | |
517 | # endif | |
24d56127 LC |
518 | #endif |
519 | ||
520 | #if @GNULIB_STRSTR@ | |
521 | # if @REPLACE_STRSTR@ | |
f4c79b3c LC |
522 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
523 | # define strstr rpl_strstr | |
524 | # endif | |
525 | _GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) | |
9157d901 | 526 | _GL_ATTRIBUTE_PURE |
f4c79b3c LC |
527 | _GL_ARG_NONNULL ((1, 2))); |
528 | _GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); | |
529 | # else | |
530 | /* On some systems, this function is defined as an overloaded function: | |
531 | extern "C++" { const char * strstr (const char *, const char *); } | |
532 | extern "C++" { char * strstr (char *, const char *); } */ | |
533 | _GL_CXXALIAS_SYS_CAST2 (strstr, | |
534 | char *, (const char *haystack, const char *needle), | |
535 | const char *, (const char *haystack, const char *needle)); | |
536 | # endif | |
537 | # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
538 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
539 | _GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); | |
540 | _GL_CXXALIASWARN1 (strstr, const char *, | |
541 | (const char *haystack, const char *needle)); | |
542 | # else | |
543 | _GL_CXXALIASWARN (strstr); | |
24d56127 LC |
544 | # endif |
545 | #elif defined GNULIB_POSIXCHECK | |
546 | /* strstr() does not work with multibyte strings if the locale encoding is | |
547 | different from UTF-8: | |
548 | POSIX says that it operates on "strings", and "string" in POSIX is defined | |
549 | as a sequence of bytes, not of characters. */ | |
550 | # undef strstr | |
61cd9dc9 LC |
551 | /* Assume strstr is always declared. */ |
552 | _GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " | |
553 | "work correctly on character strings in most " | |
554 | "multibyte locales - " | |
555 | "use mbsstr if you care about internationalization, " | |
556 | "or use strstr if you care about speed"); | |
24d56127 LC |
557 | #endif |
558 | ||
559 | /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive | |
560 | comparison. */ | |
561 | #if @GNULIB_STRCASESTR@ | |
562 | # if @REPLACE_STRCASESTR@ | |
f4c79b3c LC |
563 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
564 | # define strcasestr rpl_strcasestr | |
565 | # endif | |
566 | _GL_FUNCDECL_RPL (strcasestr, char *, | |
567 | (const char *haystack, const char *needle) | |
9157d901 LC |
568 | _GL_ATTRIBUTE_PURE |
569 | _GL_ARG_NONNULL ((1, 2))); | |
f4c79b3c LC |
570 | _GL_CXXALIAS_RPL (strcasestr, char *, |
571 | (const char *haystack, const char *needle)); | |
572 | # else | |
573 | # if ! @HAVE_STRCASESTR@ | |
574 | _GL_FUNCDECL_SYS (strcasestr, char *, | |
575 | (const char *haystack, const char *needle) | |
9157d901 LC |
576 | _GL_ATTRIBUTE_PURE |
577 | _GL_ARG_NONNULL ((1, 2))); | |
f4c79b3c LC |
578 | # endif |
579 | /* On some systems, this function is defined as an overloaded function: | |
580 | extern "C++" { const char * strcasestr (const char *, const char *); } | |
581 | extern "C++" { char * strcasestr (char *, const char *); } */ | |
582 | _GL_CXXALIAS_SYS_CAST2 (strcasestr, | |
583 | char *, (const char *haystack, const char *needle), | |
584 | const char *, (const char *haystack, const char *needle)); | |
585 | # endif | |
586 | # if __GLIBC__ == 2 && __GLIBC_MINOR__ >= 10 \ | |
587 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) | |
588 | _GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle)); | |
589 | _GL_CXXALIASWARN1 (strcasestr, const char *, | |
590 | (const char *haystack, const char *needle)); | |
591 | # else | |
592 | _GL_CXXALIASWARN (strcasestr); | |
24d56127 LC |
593 | # endif |
594 | #elif defined GNULIB_POSIXCHECK | |
595 | /* strcasestr() does not work with multibyte strings: | |
596 | It is a glibc extension, and glibc implements it only for unibyte | |
597 | locales. */ | |
598 | # undef strcasestr | |
61cd9dc9 LC |
599 | # if HAVE_RAW_DECL_STRCASESTR |
600 | _GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character " | |
601 | "strings in multibyte locales - " | |
602 | "use mbscasestr if you care about " | |
603 | "internationalization, or use c-strcasestr if you want " | |
604 | "a locale independent function"); | |
605 | # endif | |
24d56127 LC |
606 | #endif |
607 | ||
608 | /* Parse S into tokens separated by characters in DELIM. | |
609 | If S is NULL, the saved pointer in SAVE_PTR is used as | |
610 | the next starting point. For example: | |
1cd4fffc LC |
611 | char s[] = "-abc-=-def"; |
612 | char *sp; | |
613 | x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
614 | x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
615 | x = strtok_r(NULL, "=", &sp); // x = NULL | |
616 | // s = "abc\0-def\0" | |
24d56127 LC |
617 | |
618 | This is a variant of strtok() that is multithread-safe. | |
619 | ||
620 | For the POSIX documentation for this function, see: | |
621 | http://www.opengroup.org/susv3xsh/strtok.html | |
622 | ||
623 | Caveat: It modifies the original string. | |
624 | Caveat: These functions cannot be used on constant strings. | |
625 | Caveat: The identity of the delimiting character is lost. | |
626 | Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
627 | characters are ASCII characters < 0x30. | |
628 | ||
629 | See also strsep(). */ | |
630 | #if @GNULIB_STRTOK_R@ | |
8912421c | 631 | # if @REPLACE_STRTOK_R@ |
f4c79b3c LC |
632 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
633 | # undef strtok_r | |
634 | # define strtok_r rpl_strtok_r | |
635 | # endif | |
636 | _GL_FUNCDECL_RPL (strtok_r, char *, | |
637 | (char *restrict s, char const *restrict delim, | |
638 | char **restrict save_ptr) | |
639 | _GL_ARG_NONNULL ((2, 3))); | |
640 | _GL_CXXALIAS_RPL (strtok_r, char *, | |
641 | (char *restrict s, char const *restrict delim, | |
642 | char **restrict save_ptr)); | |
643 | # else | |
644 | # if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK | |
645 | # undef strtok_r | |
646 | # endif | |
647 | # if ! @HAVE_DECL_STRTOK_R@ | |
648 | _GL_FUNCDECL_SYS (strtok_r, char *, | |
649 | (char *restrict s, char const *restrict delim, | |
650 | char **restrict save_ptr) | |
651 | _GL_ARG_NONNULL ((2, 3))); | |
652 | # endif | |
653 | _GL_CXXALIAS_SYS (strtok_r, char *, | |
654 | (char *restrict s, char const *restrict delim, | |
655 | char **restrict save_ptr)); | |
656 | # endif | |
657 | _GL_CXXALIASWARN (strtok_r); | |
24d56127 | 658 | # if defined GNULIB_POSIXCHECK |
61cd9dc9 LC |
659 | _GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character " |
660 | "strings in multibyte locales - " | |
661 | "use mbstok_r if you care about internationalization"); | |
24d56127 LC |
662 | # endif |
663 | #elif defined GNULIB_POSIXCHECK | |
664 | # undef strtok_r | |
61cd9dc9 LC |
665 | # if HAVE_RAW_DECL_STRTOK_R |
666 | _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " | |
667 | "use gnulib module strtok_r for portability"); | |
668 | # endif | |
24d56127 LC |
669 | #endif |
670 | ||
671 | ||
672 | /* The following functions are not specified by POSIX. They are gnulib | |
673 | extensions. */ | |
674 | ||
675 | #if @GNULIB_MBSLEN@ | |
676 | /* Return the number of multibyte characters in the character string STRING. | |
677 | This considers multibyte characters, unlike strlen, which counts bytes. */ | |
61cd9dc9 LC |
678 | # ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */ |
679 | # undef mbslen | |
680 | # endif | |
681 | # if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */ | |
f4c79b3c LC |
682 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
683 | # define mbslen rpl_mbslen | |
684 | # endif | |
685 | _GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1))); | |
686 | _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); | |
687 | # else | |
688 | _GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) _GL_ARG_NONNULL ((1))); | |
689 | _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); | |
61cd9dc9 | 690 | # endif |
f4c79b3c | 691 | _GL_CXXALIASWARN (mbslen); |
24d56127 LC |
692 | #endif |
693 | ||
694 | #if @GNULIB_MBSNLEN@ | |
695 | /* Return the number of multibyte characters in the character string starting | |
696 | at STRING and ending at STRING + LEN. */ | |
f4c79b3c LC |
697 | _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) |
698 | _GL_ARG_NONNULL ((1)); | |
24d56127 LC |
699 | #endif |
700 | ||
701 | #if @GNULIB_MBSCHR@ | |
702 | /* Locate the first single-byte character C in the character string STRING, | |
703 | and return a pointer to it. Return NULL if C is not found in STRING. | |
704 | Unlike strchr(), this function works correctly in multibyte locales with | |
705 | encodings such as GB18030. */ | |
f4c79b3c LC |
706 | # if defined __hpux |
707 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
708 | # define mbschr rpl_mbschr /* avoid collision with HP-UX function */ | |
709 | # endif | |
710 | _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c) | |
711 | _GL_ARG_NONNULL ((1))); | |
712 | _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c)); | |
713 | # else | |
714 | _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c) | |
715 | _GL_ARG_NONNULL ((1))); | |
716 | _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c)); | |
717 | # endif | |
718 | _GL_CXXALIASWARN (mbschr); | |
24d56127 LC |
719 | #endif |
720 | ||
721 | #if @GNULIB_MBSRCHR@ | |
722 | /* Locate the last single-byte character C in the character string STRING, | |
723 | and return a pointer to it. Return NULL if C is not found in STRING. | |
724 | Unlike strrchr(), this function works correctly in multibyte locales with | |
725 | encodings such as GB18030. */ | |
f4c79b3c LC |
726 | # if defined __hpux |
727 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
728 | # define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */ | |
729 | # endif | |
730 | _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c) | |
731 | _GL_ARG_NONNULL ((1))); | |
732 | _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c)); | |
733 | # else | |
734 | _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c) | |
735 | _GL_ARG_NONNULL ((1))); | |
736 | _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c)); | |
737 | # endif | |
738 | _GL_CXXALIASWARN (mbsrchr); | |
24d56127 LC |
739 | #endif |
740 | ||
741 | #if @GNULIB_MBSSTR@ | |
742 | /* Find the first occurrence of the character string NEEDLE in the character | |
743 | string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK. | |
744 | Unlike strstr(), this function works correctly in multibyte locales with | |
745 | encodings different from UTF-8. */ | |
f4c79b3c | 746 | _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) |
1cd4fffc | 747 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
748 | #endif |
749 | ||
750 | #if @GNULIB_MBSCASECMP@ | |
751 | /* Compare the character strings S1 and S2, ignoring case, returning less than, | |
752 | equal to or greater than zero if S1 is lexicographically less than, equal to | |
753 | or greater than S2. | |
754 | Note: This function may, in multibyte locales, return 0 for strings of | |
755 | different lengths! | |
756 | Unlike strcasecmp(), this function works correctly in multibyte locales. */ | |
f4c79b3c | 757 | _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) |
1cd4fffc | 758 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
759 | #endif |
760 | ||
761 | #if @GNULIB_MBSNCASECMP@ | |
762 | /* Compare the initial segment of the character string S1 consisting of at most | |
763 | N characters with the initial segment of the character string S2 consisting | |
764 | of at most N characters, ignoring case, returning less than, equal to or | |
765 | greater than zero if the initial segment of S1 is lexicographically less | |
766 | than, equal to or greater than the initial segment of S2. | |
767 | Note: This function may, in multibyte locales, return 0 for initial segments | |
768 | of different lengths! | |
769 | Unlike strncasecmp(), this function works correctly in multibyte locales. | |
770 | But beware that N is not a byte count but a character count! */ | |
f4c79b3c | 771 | _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n) |
1cd4fffc | 772 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
773 | #endif |
774 | ||
775 | #if @GNULIB_MBSPCASECMP@ | |
776 | /* Compare the initial segment of the character string STRING consisting of | |
777 | at most mbslen (PREFIX) characters with the character string PREFIX, | |
9157d901 LC |
778 | ignoring case. If the two match, return a pointer to the first byte |
779 | after this prefix in STRING. Otherwise, return NULL. | |
780 | Note: This function may, in multibyte locales, return non-NULL if STRING | |
781 | is of smaller length than PREFIX! | |
24d56127 LC |
782 | Unlike strncasecmp(), this function works correctly in multibyte |
783 | locales. */ | |
f4c79b3c | 784 | _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) |
1cd4fffc | 785 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
786 | #endif |
787 | ||
788 | #if @GNULIB_MBSCASESTR@ | |
789 | /* Find the first occurrence of the character string NEEDLE in the character | |
790 | string HAYSTACK, using case-insensitive comparison. | |
791 | Note: This function may, in multibyte locales, return success even if | |
792 | strlen (haystack) < strlen (needle) ! | |
793 | Unlike strcasestr(), this function works correctly in multibyte locales. */ | |
f4c79b3c | 794 | _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) |
1cd4fffc | 795 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
796 | #endif |
797 | ||
798 | #if @GNULIB_MBSCSPN@ | |
799 | /* Find the first occurrence in the character string STRING of any character | |
800 | in the character string ACCEPT. Return the number of bytes from the | |
801 | beginning of the string to this occurrence, or to the end of the string | |
802 | if none exists. | |
803 | Unlike strcspn(), this function works correctly in multibyte locales. */ | |
f4c79b3c | 804 | _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) |
1cd4fffc | 805 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
806 | #endif |
807 | ||
808 | #if @GNULIB_MBSPBRK@ | |
809 | /* Find the first occurrence in the character string STRING of any character | |
810 | in the character string ACCEPT. Return the pointer to it, or NULL if none | |
811 | exists. | |
812 | Unlike strpbrk(), this function works correctly in multibyte locales. */ | |
f4c79b3c LC |
813 | # if defined __hpux |
814 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
815 | # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ | |
816 | # endif | |
817 | _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept) | |
818 | _GL_ARG_NONNULL ((1, 2))); | |
819 | _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept)); | |
820 | # else | |
821 | _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept) | |
822 | _GL_ARG_NONNULL ((1, 2))); | |
823 | _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept)); | |
824 | # endif | |
825 | _GL_CXXALIASWARN (mbspbrk); | |
24d56127 LC |
826 | #endif |
827 | ||
828 | #if @GNULIB_MBSSPN@ | |
829 | /* Find the first occurrence in the character string STRING of any character | |
830 | not in the character string REJECT. Return the number of bytes from the | |
831 | beginning of the string to this occurrence, or to the end of the string | |
832 | if none exists. | |
833 | Unlike strspn(), this function works correctly in multibyte locales. */ | |
f4c79b3c | 834 | _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) |
1cd4fffc | 835 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
836 | #endif |
837 | ||
838 | #if @GNULIB_MBSSEP@ | |
839 | /* Search the next delimiter (multibyte character listed in the character | |
840 | string DELIM) starting at the character string *STRINGP. | |
841 | If one is found, overwrite it with a NUL, and advance *STRINGP to point | |
842 | to the next multibyte character after it. Otherwise, set *STRINGP to NULL. | |
843 | If *STRINGP was already NULL, nothing happens. | |
844 | Return the old value of *STRINGP. | |
845 | ||
846 | This is a variant of mbstok_r() that supports empty fields. | |
847 | ||
848 | Caveat: It modifies the original string. | |
849 | Caveat: These functions cannot be used on constant strings. | |
850 | Caveat: The identity of the delimiting character is lost. | |
851 | ||
852 | See also mbstok_r(). */ | |
f4c79b3c | 853 | _GL_EXTERN_C char * mbssep (char **stringp, const char *delim) |
1cd4fffc | 854 | _GL_ARG_NONNULL ((1, 2)); |
24d56127 LC |
855 | #endif |
856 | ||
857 | #if @GNULIB_MBSTOK_R@ | |
858 | /* Parse the character string STRING into tokens separated by characters in | |
859 | the character string DELIM. | |
860 | If STRING is NULL, the saved pointer in SAVE_PTR is used as | |
861 | the next starting point. For example: | |
1cd4fffc LC |
862 | char s[] = "-abc-=-def"; |
863 | char *sp; | |
864 | x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
865 | x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
866 | x = mbstok_r(NULL, "=", &sp); // x = NULL | |
867 | // s = "abc\0-def\0" | |
24d56127 LC |
868 | |
869 | Caveat: It modifies the original string. | |
870 | Caveat: These functions cannot be used on constant strings. | |
871 | Caveat: The identity of the delimiting character is lost. | |
872 | ||
873 | See also mbssep(). */ | |
f4c79b3c | 874 | _GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr) |
1cd4fffc | 875 | _GL_ARG_NONNULL ((2, 3)); |
24d56127 LC |
876 | #endif |
877 | ||
878 | /* Map any int, typically from errno, into an error message. */ | |
879 | #if @GNULIB_STRERROR@ | |
880 | # if @REPLACE_STRERROR@ | |
f4c79b3c LC |
881 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
882 | # undef strerror | |
883 | # define strerror rpl_strerror | |
884 | # endif | |
885 | _GL_FUNCDECL_RPL (strerror, char *, (int)); | |
886 | _GL_CXXALIAS_RPL (strerror, char *, (int)); | |
887 | # else | |
888 | _GL_CXXALIAS_SYS (strerror, char *, (int)); | |
889 | # endif | |
890 | _GL_CXXALIASWARN (strerror); | |
24d56127 LC |
891 | #elif defined GNULIB_POSIXCHECK |
892 | # undef strerror | |
61cd9dc9 LC |
893 | /* Assume strerror is always declared. */ |
894 | _GL_WARN_ON_USE (strerror, "strerror is unportable - " | |
895 | "use gnulib module strerror to guarantee non-NULL result"); | |
24d56127 LC |
896 | #endif |
897 | ||
898 | #if @GNULIB_STRSIGNAL@ | |
899 | # if @REPLACE_STRSIGNAL@ | |
f4c79b3c LC |
900 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
901 | # define strsignal rpl_strsignal | |
902 | # endif | |
903 | _GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); | |
904 | _GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); | |
905 | # else | |
906 | # if ! @HAVE_DECL_STRSIGNAL@ | |
907 | _GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); | |
908 | # endif | |
909 | /* Need to cast, because on Cygwin 1.5.x systems, the return type is | |
910 | 'const char *'. */ | |
911 | _GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); | |
912 | # endif | |
913 | _GL_CXXALIASWARN (strsignal); | |
24d56127 LC |
914 | #elif defined GNULIB_POSIXCHECK |
915 | # undef strsignal | |
61cd9dc9 LC |
916 | # if HAVE_RAW_DECL_STRSIGNAL |
917 | _GL_WARN_ON_USE (strsignal, "strsignal is unportable - " | |
918 | "use gnulib module strsignal for portability"); | |
919 | # endif | |
24d56127 LC |
920 | #endif |
921 | ||
922 | #if @GNULIB_STRVERSCMP@ | |
923 | # if !@HAVE_STRVERSCMP@ | |
f4c79b3c LC |
924 | _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) |
925 | _GL_ARG_NONNULL ((1, 2))); | |
24d56127 | 926 | # endif |
f4c79b3c LC |
927 | _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); |
928 | _GL_CXXALIASWARN (strverscmp); | |
24d56127 LC |
929 | #elif defined GNULIB_POSIXCHECK |
930 | # undef strverscmp | |
61cd9dc9 LC |
931 | # if HAVE_RAW_DECL_STRVERSCMP |
932 | _GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " | |
933 | "use gnulib module strverscmp for portability"); | |
934 | # endif | |
24d56127 LC |
935 | #endif |
936 | ||
937 | ||
24d56127 LC |
938 | #endif /* _GL_STRING_H */ |
939 | #endif /* _GL_STRING_H */ |