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f6ea5628 DJ |
1 | /* A GNU-like <string.h>. |
2 | ||
5e8754f9 | 3 | Copyright (C) 1995-1996, 2001-2016 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 | |
5e8754f9 | 16 | along with this program; if not, see <http://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 | ||
770d76d7 PA |
77 | /* Find the index of the least-significant set bit. */ |
78 | #if @GNULIB_FFSL@ | |
79 | # if !@HAVE_FFSL@ | |
80 | _GL_FUNCDECL_SYS (ffsl, int, (long int i)); | |
81 | # endif | |
82 | _GL_CXXALIAS_SYS (ffsl, int, (long int i)); | |
83 | _GL_CXXALIASWARN (ffsl); | |
84 | #elif defined GNULIB_POSIXCHECK | |
85 | # undef ffsl | |
86 | # if HAVE_RAW_DECL_FFSL | |
87 | _GL_WARN_ON_USE (ffsl, "ffsl is not portable - use the ffsl module"); | |
88 | # endif | |
89 | #endif | |
90 | ||
91 | ||
92 | /* Find the index of the least-significant set bit. */ | |
93 | #if @GNULIB_FFSLL@ | |
94 | # if !@HAVE_FFSLL@ | |
95 | _GL_FUNCDECL_SYS (ffsll, int, (long long int i)); | |
96 | # endif | |
97 | _GL_CXXALIAS_SYS (ffsll, int, (long long int i)); | |
98 | _GL_CXXALIASWARN (ffsll); | |
99 | #elif defined GNULIB_POSIXCHECK | |
100 | # undef ffsll | |
101 | # if HAVE_RAW_DECL_FFSLL | |
102 | _GL_WARN_ON_USE (ffsll, "ffsll is not portable - use the ffsll module"); | |
103 | # endif | |
104 | #endif | |
105 | ||
106 | ||
f434ba03 PA |
107 | /* Return the first instance of C within N bytes of S, or NULL. */ |
108 | #if @GNULIB_MEMCHR@ | |
109 | # if @REPLACE_MEMCHR@ | |
110 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
111 | # define memchr rpl_memchr | |
112 | # endif | |
113 | _GL_FUNCDECL_RPL (memchr, void *, (void const *__s, int __c, size_t __n) | |
770d76d7 | 114 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
115 | _GL_ARG_NONNULL ((1))); |
116 | _GL_CXXALIAS_RPL (memchr, void *, (void const *__s, int __c, size_t __n)); | |
117 | # else | |
118 | # if ! @HAVE_MEMCHR@ | |
119 | _GL_FUNCDECL_SYS (memchr, void *, (void const *__s, int __c, size_t __n) | |
770d76d7 | 120 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
121 | _GL_ARG_NONNULL ((1))); |
122 | # endif | |
123 | /* On some systems, this function is defined as an overloaded function: | |
124 | extern "C" { const void * std::memchr (const void *, int, size_t); } | |
125 | extern "C++" { void * std::memchr (void *, int, size_t); } */ | |
126 | _GL_CXXALIAS_SYS_CAST2 (memchr, | |
127 | void *, (void const *__s, int __c, size_t __n), | |
128 | void const *, (void const *__s, int __c, size_t __n)); | |
129 | # endif | |
770d76d7 | 130 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
131 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
132 | _GL_CXXALIASWARN1 (memchr, void *, (void *__s, int __c, size_t __n)); | |
133 | _GL_CXXALIASWARN1 (memchr, void const *, | |
134 | (void const *__s, int __c, size_t __n)); | |
135 | # else | |
136 | _GL_CXXALIASWARN (memchr); | |
137 | # endif | |
138 | #elif defined GNULIB_POSIXCHECK | |
139 | # undef memchr | |
140 | /* Assume memchr is always declared. */ | |
141 | _GL_WARN_ON_USE (memchr, "memchr has platform-specific bugs - " | |
142 | "use gnulib module memchr for portability" ); | |
f6ea5628 DJ |
143 | #endif |
144 | ||
f6ea5628 DJ |
145 | /* Return the first occurrence of NEEDLE in HAYSTACK. */ |
146 | #if @GNULIB_MEMMEM@ | |
147 | # if @REPLACE_MEMMEM@ | |
f434ba03 PA |
148 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
149 | # define memmem rpl_memmem | |
150 | # endif | |
151 | _GL_FUNCDECL_RPL (memmem, void *, | |
152 | (void const *__haystack, size_t __haystack_len, | |
153 | void const *__needle, size_t __needle_len) | |
770d76d7 PA |
154 | _GL_ATTRIBUTE_PURE |
155 | _GL_ARG_NONNULL ((1, 3))); | |
f434ba03 PA |
156 | _GL_CXXALIAS_RPL (memmem, void *, |
157 | (void const *__haystack, size_t __haystack_len, | |
158 | void const *__needle, size_t __needle_len)); | |
159 | # else | |
160 | # if ! @HAVE_DECL_MEMMEM@ | |
161 | _GL_FUNCDECL_SYS (memmem, void *, | |
162 | (void const *__haystack, size_t __haystack_len, | |
163 | void const *__needle, size_t __needle_len) | |
770d76d7 PA |
164 | _GL_ATTRIBUTE_PURE |
165 | _GL_ARG_NONNULL ((1, 3))); | |
f434ba03 PA |
166 | # endif |
167 | _GL_CXXALIAS_SYS (memmem, void *, | |
168 | (void const *__haystack, size_t __haystack_len, | |
169 | void const *__needle, size_t __needle_len)); | |
f6ea5628 | 170 | # endif |
f434ba03 | 171 | _GL_CXXALIASWARN (memmem); |
f6ea5628 DJ |
172 | #elif defined GNULIB_POSIXCHECK |
173 | # undef memmem | |
f434ba03 PA |
174 | # if HAVE_RAW_DECL_MEMMEM |
175 | _GL_WARN_ON_USE (memmem, "memmem is unportable and often quadratic - " | |
176 | "use gnulib module memmem-simple for portability, " | |
177 | "and module memmem for speed" ); | |
178 | # endif | |
f6ea5628 DJ |
179 | #endif |
180 | ||
181 | /* Copy N bytes of SRC to DEST, return pointer to bytes after the | |
182 | last written byte. */ | |
183 | #if @GNULIB_MEMPCPY@ | |
184 | # if ! @HAVE_MEMPCPY@ | |
f434ba03 PA |
185 | _GL_FUNCDECL_SYS (mempcpy, void *, |
186 | (void *restrict __dest, void const *restrict __src, | |
187 | size_t __n) | |
188 | _GL_ARG_NONNULL ((1, 2))); | |
f6ea5628 | 189 | # endif |
f434ba03 PA |
190 | _GL_CXXALIAS_SYS (mempcpy, void *, |
191 | (void *restrict __dest, void const *restrict __src, | |
192 | size_t __n)); | |
193 | _GL_CXXALIASWARN (mempcpy); | |
f6ea5628 DJ |
194 | #elif defined GNULIB_POSIXCHECK |
195 | # undef mempcpy | |
f434ba03 PA |
196 | # if HAVE_RAW_DECL_MEMPCPY |
197 | _GL_WARN_ON_USE (mempcpy, "mempcpy is unportable - " | |
198 | "use gnulib module mempcpy for portability"); | |
199 | # endif | |
f6ea5628 DJ |
200 | #endif |
201 | ||
202 | /* Search backwards through a block for a byte (specified as an int). */ | |
203 | #if @GNULIB_MEMRCHR@ | |
204 | # if ! @HAVE_DECL_MEMRCHR@ | |
f434ba03 | 205 | _GL_FUNCDECL_SYS (memrchr, void *, (void const *, int, size_t) |
770d76d7 | 206 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
207 | _GL_ARG_NONNULL ((1))); |
208 | # endif | |
209 | /* On some systems, this function is defined as an overloaded function: | |
210 | extern "C++" { const void * std::memrchr (const void *, int, size_t); } | |
211 | extern "C++" { void * std::memrchr (void *, int, size_t); } */ | |
212 | _GL_CXXALIAS_SYS_CAST2 (memrchr, | |
213 | void *, (void const *, int, size_t), | |
214 | void const *, (void const *, int, size_t)); | |
770d76d7 | 215 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
216 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
217 | _GL_CXXALIASWARN1 (memrchr, void *, (void *, int, size_t)); | |
218 | _GL_CXXALIASWARN1 (memrchr, void const *, (void const *, int, size_t)); | |
219 | # else | |
220 | _GL_CXXALIASWARN (memrchr); | |
f6ea5628 DJ |
221 | # endif |
222 | #elif defined GNULIB_POSIXCHECK | |
223 | # undef memrchr | |
f434ba03 PA |
224 | # if HAVE_RAW_DECL_MEMRCHR |
225 | _GL_WARN_ON_USE (memrchr, "memrchr is unportable - " | |
226 | "use gnulib module memrchr for portability"); | |
227 | # endif | |
228 | #endif | |
229 | ||
230 | /* Find the first occurrence of C in S. More efficient than | |
231 | memchr(S,C,N), at the expense of undefined behavior if C does not | |
232 | occur within N bytes. */ | |
233 | #if @GNULIB_RAWMEMCHR@ | |
234 | # if ! @HAVE_RAWMEMCHR@ | |
235 | _GL_FUNCDECL_SYS (rawmemchr, void *, (void const *__s, int __c_in) | |
770d76d7 | 236 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
237 | _GL_ARG_NONNULL ((1))); |
238 | # endif | |
239 | /* On some systems, this function is defined as an overloaded function: | |
240 | extern "C++" { const void * std::rawmemchr (const void *, int); } | |
241 | extern "C++" { void * std::rawmemchr (void *, int); } */ | |
242 | _GL_CXXALIAS_SYS_CAST2 (rawmemchr, | |
243 | void *, (void const *__s, int __c_in), | |
244 | void const *, (void const *__s, int __c_in)); | |
770d76d7 | 245 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
246 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
247 | _GL_CXXALIASWARN1 (rawmemchr, void *, (void *__s, int __c_in)); | |
248 | _GL_CXXALIASWARN1 (rawmemchr, void const *, (void const *__s, int __c_in)); | |
249 | # else | |
250 | _GL_CXXALIASWARN (rawmemchr); | |
251 | # endif | |
252 | #elif defined GNULIB_POSIXCHECK | |
253 | # undef rawmemchr | |
254 | # if HAVE_RAW_DECL_RAWMEMCHR | |
255 | _GL_WARN_ON_USE (rawmemchr, "rawmemchr is unportable - " | |
256 | "use gnulib module rawmemchr for portability"); | |
257 | # endif | |
f6ea5628 DJ |
258 | #endif |
259 | ||
260 | /* Copy SRC to DST, returning the address of the terminating '\0' in DST. */ | |
261 | #if @GNULIB_STPCPY@ | |
262 | # if ! @HAVE_STPCPY@ | |
f434ba03 PA |
263 | _GL_FUNCDECL_SYS (stpcpy, char *, |
264 | (char *restrict __dst, char const *restrict __src) | |
265 | _GL_ARG_NONNULL ((1, 2))); | |
f6ea5628 | 266 | # endif |
f434ba03 PA |
267 | _GL_CXXALIAS_SYS (stpcpy, char *, |
268 | (char *restrict __dst, char const *restrict __src)); | |
269 | _GL_CXXALIASWARN (stpcpy); | |
f6ea5628 DJ |
270 | #elif defined GNULIB_POSIXCHECK |
271 | # undef stpcpy | |
f434ba03 PA |
272 | # if HAVE_RAW_DECL_STPCPY |
273 | _GL_WARN_ON_USE (stpcpy, "stpcpy is unportable - " | |
274 | "use gnulib module stpcpy for portability"); | |
275 | # endif | |
f6ea5628 DJ |
276 | #endif |
277 | ||
278 | /* Copy no more than N bytes of SRC to DST, returning a pointer past the | |
279 | last non-NUL byte written into DST. */ | |
280 | #if @GNULIB_STPNCPY@ | |
f434ba03 PA |
281 | # if @REPLACE_STPNCPY@ |
282 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
770d76d7 | 283 | # undef stpncpy |
f434ba03 PA |
284 | # define stpncpy rpl_stpncpy |
285 | # endif | |
286 | _GL_FUNCDECL_RPL (stpncpy, char *, | |
287 | (char *restrict __dst, char const *restrict __src, | |
288 | size_t __n) | |
289 | _GL_ARG_NONNULL ((1, 2))); | |
290 | _GL_CXXALIAS_RPL (stpncpy, char *, | |
291 | (char *restrict __dst, char const *restrict __src, | |
292 | size_t __n)); | |
293 | # else | |
294 | # if ! @HAVE_STPNCPY@ | |
295 | _GL_FUNCDECL_SYS (stpncpy, char *, | |
296 | (char *restrict __dst, char const *restrict __src, | |
297 | size_t __n) | |
298 | _GL_ARG_NONNULL ((1, 2))); | |
299 | # endif | |
300 | _GL_CXXALIAS_SYS (stpncpy, char *, | |
301 | (char *restrict __dst, char const *restrict __src, | |
302 | size_t __n)); | |
f6ea5628 | 303 | # endif |
f434ba03 | 304 | _GL_CXXALIASWARN (stpncpy); |
f6ea5628 DJ |
305 | #elif defined GNULIB_POSIXCHECK |
306 | # undef stpncpy | |
f434ba03 PA |
307 | # if HAVE_RAW_DECL_STPNCPY |
308 | _GL_WARN_ON_USE (stpncpy, "stpncpy is unportable - " | |
309 | "use gnulib module stpncpy for portability"); | |
310 | # endif | |
f6ea5628 DJ |
311 | #endif |
312 | ||
313 | #if defined GNULIB_POSIXCHECK | |
314 | /* strchr() does not work with multibyte strings if the locale encoding is | |
315 | GB18030 and the character to be searched is a digit. */ | |
316 | # undef strchr | |
f434ba03 PA |
317 | /* Assume strchr is always declared. */ |
318 | _GL_WARN_ON_USE (strchr, "strchr cannot work correctly on character strings " | |
319 | "in some multibyte locales - " | |
320 | "use mbschr if you care about internationalization"); | |
f6ea5628 DJ |
321 | #endif |
322 | ||
323 | /* Find the first occurrence of C in S or the final NUL byte. */ | |
324 | #if @GNULIB_STRCHRNUL@ | |
770d76d7 PA |
325 | # if @REPLACE_STRCHRNUL@ |
326 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
327 | # define strchrnul rpl_strchrnul | |
328 | # endif | |
329 | _GL_FUNCDECL_RPL (strchrnul, char *, (const char *__s, int __c_in) | |
330 | _GL_ATTRIBUTE_PURE | |
331 | _GL_ARG_NONNULL ((1))); | |
332 | _GL_CXXALIAS_RPL (strchrnul, char *, | |
333 | (const char *str, int ch)); | |
334 | # else | |
335 | # if ! @HAVE_STRCHRNUL@ | |
f434ba03 | 336 | _GL_FUNCDECL_SYS (strchrnul, char *, (char const *__s, int __c_in) |
770d76d7 | 337 | _GL_ATTRIBUTE_PURE |
f434ba03 | 338 | _GL_ARG_NONNULL ((1))); |
770d76d7 | 339 | # endif |
f434ba03 PA |
340 | /* On some systems, this function is defined as an overloaded function: |
341 | extern "C++" { const char * std::strchrnul (const char *, int); } | |
342 | extern "C++" { char * std::strchrnul (char *, int); } */ | |
343 | _GL_CXXALIAS_SYS_CAST2 (strchrnul, | |
344 | char *, (char const *__s, int __c_in), | |
345 | char const *, (char const *__s, int __c_in)); | |
770d76d7 PA |
346 | # endif |
347 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ | |
f434ba03 PA |
348 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
349 | _GL_CXXALIASWARN1 (strchrnul, char *, (char *__s, int __c_in)); | |
350 | _GL_CXXALIASWARN1 (strchrnul, char const *, (char const *__s, int __c_in)); | |
351 | # else | |
352 | _GL_CXXALIASWARN (strchrnul); | |
f6ea5628 DJ |
353 | # endif |
354 | #elif defined GNULIB_POSIXCHECK | |
355 | # undef strchrnul | |
f434ba03 PA |
356 | # if HAVE_RAW_DECL_STRCHRNUL |
357 | _GL_WARN_ON_USE (strchrnul, "strchrnul is unportable - " | |
358 | "use gnulib module strchrnul for portability"); | |
359 | # endif | |
f6ea5628 DJ |
360 | #endif |
361 | ||
362 | /* Duplicate S, returning an identical malloc'd string. */ | |
363 | #if @GNULIB_STRDUP@ | |
f434ba03 PA |
364 | # if @REPLACE_STRDUP@ |
365 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
366 | # undef strdup | |
367 | # define strdup rpl_strdup | |
368 | # endif | |
369 | _GL_FUNCDECL_RPL (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); | |
370 | _GL_CXXALIAS_RPL (strdup, char *, (char const *__s)); | |
371 | # else | |
770d76d7 PA |
372 | # if defined __cplusplus && defined GNULIB_NAMESPACE && defined strdup |
373 | /* strdup exists as a function and as a macro. Get rid of the macro. */ | |
374 | # undef strdup | |
375 | # endif | |
f434ba03 PA |
376 | # if !(@HAVE_DECL_STRDUP@ || defined strdup) |
377 | _GL_FUNCDECL_SYS (strdup, char *, (char const *__s) _GL_ARG_NONNULL ((1))); | |
378 | # endif | |
379 | _GL_CXXALIAS_SYS (strdup, char *, (char const *__s)); | |
f6ea5628 | 380 | # endif |
f434ba03 | 381 | _GL_CXXALIASWARN (strdup); |
f6ea5628 DJ |
382 | #elif defined GNULIB_POSIXCHECK |
383 | # undef strdup | |
f434ba03 PA |
384 | # if HAVE_RAW_DECL_STRDUP |
385 | _GL_WARN_ON_USE (strdup, "strdup is unportable - " | |
386 | "use gnulib module strdup for portability"); | |
387 | # endif | |
388 | #endif | |
389 | ||
390 | /* Append no more than N characters from SRC onto DEST. */ | |
391 | #if @GNULIB_STRNCAT@ | |
392 | # if @REPLACE_STRNCAT@ | |
393 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
394 | # undef strncat | |
395 | # define strncat rpl_strncat | |
396 | # endif | |
397 | _GL_FUNCDECL_RPL (strncat, char *, (char *dest, const char *src, size_t n) | |
398 | _GL_ARG_NONNULL ((1, 2))); | |
399 | _GL_CXXALIAS_RPL (strncat, char *, (char *dest, const char *src, size_t n)); | |
400 | # else | |
401 | _GL_CXXALIAS_SYS (strncat, char *, (char *dest, const char *src, size_t n)); | |
402 | # endif | |
403 | _GL_CXXALIASWARN (strncat); | |
404 | #elif defined GNULIB_POSIXCHECK | |
405 | # undef strncat | |
406 | # if HAVE_RAW_DECL_STRNCAT | |
407 | _GL_WARN_ON_USE (strncat, "strncat is unportable - " | |
408 | "use gnulib module strncat for portability"); | |
409 | # endif | |
f6ea5628 DJ |
410 | #endif |
411 | ||
412 | /* Return a newly allocated copy of at most N bytes of STRING. */ | |
413 | #if @GNULIB_STRNDUP@ | |
f434ba03 PA |
414 | # if @REPLACE_STRNDUP@ |
415 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
416 | # undef strndup | |
417 | # define strndup rpl_strndup | |
418 | # endif | |
49e4877c | 419 | _GL_FUNCDECL_RPL (strndup, char *, (char const *__s, size_t __n) |
f434ba03 | 420 | _GL_ARG_NONNULL ((1))); |
49e4877c | 421 | _GL_CXXALIAS_RPL (strndup, char *, (char const *__s, size_t __n)); |
f434ba03 PA |
422 | # else |
423 | # if ! @HAVE_DECL_STRNDUP@ | |
49e4877c | 424 | _GL_FUNCDECL_SYS (strndup, char *, (char const *__s, size_t __n) |
f434ba03 PA |
425 | _GL_ARG_NONNULL ((1))); |
426 | # endif | |
49e4877c | 427 | _GL_CXXALIAS_SYS (strndup, char *, (char const *__s, size_t __n)); |
f6ea5628 | 428 | # endif |
f434ba03 | 429 | _GL_CXXALIASWARN (strndup); |
f6ea5628 DJ |
430 | #elif defined GNULIB_POSIXCHECK |
431 | # undef strndup | |
f434ba03 PA |
432 | # if HAVE_RAW_DECL_STRNDUP |
433 | _GL_WARN_ON_USE (strndup, "strndup is unportable - " | |
434 | "use gnulib module strndup for portability"); | |
435 | # endif | |
f6ea5628 DJ |
436 | #endif |
437 | ||
438 | /* Find the length (number of bytes) of STRING, but scan at most | |
439 | MAXLEN bytes. If no '\0' terminator is found in that many bytes, | |
440 | return MAXLEN. */ | |
441 | #if @GNULIB_STRNLEN@ | |
f434ba03 PA |
442 | # if @REPLACE_STRNLEN@ |
443 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
444 | # undef strnlen | |
445 | # define strnlen rpl_strnlen | |
446 | # endif | |
49e4877c | 447 | _GL_FUNCDECL_RPL (strnlen, size_t, (char const *__s, size_t __maxlen) |
770d76d7 | 448 | _GL_ATTRIBUTE_PURE |
f434ba03 | 449 | _GL_ARG_NONNULL ((1))); |
49e4877c | 450 | _GL_CXXALIAS_RPL (strnlen, size_t, (char const *__s, size_t __maxlen)); |
f434ba03 PA |
451 | # else |
452 | # if ! @HAVE_DECL_STRNLEN@ | |
49e4877c | 453 | _GL_FUNCDECL_SYS (strnlen, size_t, (char const *__s, size_t __maxlen) |
770d76d7 | 454 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
455 | _GL_ARG_NONNULL ((1))); |
456 | # endif | |
49e4877c | 457 | _GL_CXXALIAS_SYS (strnlen, size_t, (char const *__s, size_t __maxlen)); |
f6ea5628 | 458 | # endif |
f434ba03 | 459 | _GL_CXXALIASWARN (strnlen); |
f6ea5628 DJ |
460 | #elif defined GNULIB_POSIXCHECK |
461 | # undef strnlen | |
f434ba03 PA |
462 | # if HAVE_RAW_DECL_STRNLEN |
463 | _GL_WARN_ON_USE (strnlen, "strnlen is unportable - " | |
464 | "use gnulib module strnlen for portability"); | |
465 | # endif | |
f6ea5628 DJ |
466 | #endif |
467 | ||
468 | #if defined GNULIB_POSIXCHECK | |
469 | /* strcspn() assumes the second argument is a list of single-byte characters. | |
470 | Even in this simple case, it does not work with multibyte strings if the | |
471 | locale encoding is GB18030 and one of the characters to be searched is a | |
472 | digit. */ | |
473 | # undef strcspn | |
f434ba03 PA |
474 | /* Assume strcspn is always declared. */ |
475 | _GL_WARN_ON_USE (strcspn, "strcspn cannot work correctly on character strings " | |
476 | "in multibyte locales - " | |
477 | "use mbscspn if you care about internationalization"); | |
f6ea5628 DJ |
478 | #endif |
479 | ||
480 | /* Find the first occurrence in S of any character in ACCEPT. */ | |
481 | #if @GNULIB_STRPBRK@ | |
482 | # if ! @HAVE_STRPBRK@ | |
f434ba03 | 483 | _GL_FUNCDECL_SYS (strpbrk, char *, (char const *__s, char const *__accept) |
770d76d7 | 484 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
485 | _GL_ARG_NONNULL ((1, 2))); |
486 | # endif | |
487 | /* On some systems, this function is defined as an overloaded function: | |
488 | extern "C" { const char * strpbrk (const char *, const char *); } | |
489 | extern "C++" { char * strpbrk (char *, const char *); } */ | |
490 | _GL_CXXALIAS_SYS_CAST2 (strpbrk, | |
491 | char *, (char const *__s, char const *__accept), | |
492 | const char *, (char const *__s, char const *__accept)); | |
770d76d7 | 493 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
494 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
495 | _GL_CXXALIASWARN1 (strpbrk, char *, (char *__s, char const *__accept)); | |
496 | _GL_CXXALIASWARN1 (strpbrk, char const *, | |
497 | (char const *__s, char const *__accept)); | |
498 | # else | |
499 | _GL_CXXALIASWARN (strpbrk); | |
f6ea5628 DJ |
500 | # endif |
501 | # if defined GNULIB_POSIXCHECK | |
502 | /* strpbrk() assumes the second argument is a list of single-byte characters. | |
503 | Even in this simple case, it does not work with multibyte strings if the | |
504 | locale encoding is GB18030 and one of the characters to be searched is a | |
505 | digit. */ | |
506 | # undef strpbrk | |
f434ba03 PA |
507 | _GL_WARN_ON_USE (strpbrk, "strpbrk cannot work correctly on character strings " |
508 | "in multibyte locales - " | |
509 | "use mbspbrk if you care about internationalization"); | |
f6ea5628 DJ |
510 | # endif |
511 | #elif defined GNULIB_POSIXCHECK | |
512 | # undef strpbrk | |
f434ba03 PA |
513 | # if HAVE_RAW_DECL_STRPBRK |
514 | _GL_WARN_ON_USE (strpbrk, "strpbrk is unportable - " | |
515 | "use gnulib module strpbrk for portability"); | |
516 | # endif | |
f6ea5628 DJ |
517 | #endif |
518 | ||
519 | #if defined GNULIB_POSIXCHECK | |
520 | /* strspn() assumes the second argument is a list of single-byte characters. | |
521 | Even in this simple case, it cannot work with multibyte strings. */ | |
522 | # undef strspn | |
f434ba03 PA |
523 | /* Assume strspn is always declared. */ |
524 | _GL_WARN_ON_USE (strspn, "strspn cannot work correctly on character strings " | |
525 | "in multibyte locales - " | |
526 | "use mbsspn if you care about internationalization"); | |
f6ea5628 DJ |
527 | #endif |
528 | ||
529 | #if defined GNULIB_POSIXCHECK | |
530 | /* strrchr() does not work with multibyte strings if the locale encoding is | |
531 | GB18030 and the character to be searched is a digit. */ | |
532 | # undef strrchr | |
f434ba03 PA |
533 | /* Assume strrchr is always declared. */ |
534 | _GL_WARN_ON_USE (strrchr, "strrchr cannot work correctly on character strings " | |
535 | "in some multibyte locales - " | |
536 | "use mbsrchr if you care about internationalization"); | |
f6ea5628 DJ |
537 | #endif |
538 | ||
539 | /* Search the next delimiter (char listed in DELIM) starting at *STRINGP. | |
540 | If one is found, overwrite it with a NUL, and advance *STRINGP | |
541 | to point to the next char after it. Otherwise, set *STRINGP to NULL. | |
542 | If *STRINGP was already NULL, nothing happens. | |
543 | Return the old value of *STRINGP. | |
544 | ||
545 | This is a variant of strtok() that is multithread-safe and supports | |
546 | empty fields. | |
547 | ||
548 | Caveat: It modifies the original string. | |
549 | Caveat: These functions cannot be used on constant strings. | |
550 | Caveat: The identity of the delimiting character is lost. | |
551 | Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
552 | characters are ASCII characters < 0x30. | |
553 | ||
554 | See also strtok_r(). */ | |
555 | #if @GNULIB_STRSEP@ | |
556 | # if ! @HAVE_STRSEP@ | |
f434ba03 PA |
557 | _GL_FUNCDECL_SYS (strsep, char *, |
558 | (char **restrict __stringp, char const *restrict __delim) | |
559 | _GL_ARG_NONNULL ((1, 2))); | |
f6ea5628 | 560 | # endif |
f434ba03 PA |
561 | _GL_CXXALIAS_SYS (strsep, char *, |
562 | (char **restrict __stringp, char const *restrict __delim)); | |
563 | _GL_CXXALIASWARN (strsep); | |
f6ea5628 DJ |
564 | # if defined GNULIB_POSIXCHECK |
565 | # undef strsep | |
f434ba03 PA |
566 | _GL_WARN_ON_USE (strsep, "strsep cannot work correctly on character strings " |
567 | "in multibyte locales - " | |
568 | "use mbssep if you care about internationalization"); | |
f6ea5628 DJ |
569 | # endif |
570 | #elif defined GNULIB_POSIXCHECK | |
571 | # undef strsep | |
f434ba03 PA |
572 | # if HAVE_RAW_DECL_STRSEP |
573 | _GL_WARN_ON_USE (strsep, "strsep is unportable - " | |
574 | "use gnulib module strsep for portability"); | |
575 | # endif | |
f6ea5628 DJ |
576 | #endif |
577 | ||
578 | #if @GNULIB_STRSTR@ | |
579 | # if @REPLACE_STRSTR@ | |
f434ba03 PA |
580 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
581 | # define strstr rpl_strstr | |
582 | # endif | |
583 | _GL_FUNCDECL_RPL (strstr, char *, (const char *haystack, const char *needle) | |
770d76d7 | 584 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
585 | _GL_ARG_NONNULL ((1, 2))); |
586 | _GL_CXXALIAS_RPL (strstr, char *, (const char *haystack, const char *needle)); | |
587 | # else | |
588 | /* On some systems, this function is defined as an overloaded function: | |
589 | extern "C++" { const char * strstr (const char *, const char *); } | |
590 | extern "C++" { char * strstr (char *, const char *); } */ | |
591 | _GL_CXXALIAS_SYS_CAST2 (strstr, | |
592 | char *, (const char *haystack, const char *needle), | |
593 | const char *, (const char *haystack, const char *needle)); | |
594 | # endif | |
770d76d7 | 595 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
596 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
597 | _GL_CXXALIASWARN1 (strstr, char *, (char *haystack, const char *needle)); | |
598 | _GL_CXXALIASWARN1 (strstr, const char *, | |
599 | (const char *haystack, const char *needle)); | |
600 | # else | |
601 | _GL_CXXALIASWARN (strstr); | |
f6ea5628 DJ |
602 | # endif |
603 | #elif defined GNULIB_POSIXCHECK | |
604 | /* strstr() does not work with multibyte strings if the locale encoding is | |
605 | different from UTF-8: | |
606 | POSIX says that it operates on "strings", and "string" in POSIX is defined | |
607 | as a sequence of bytes, not of characters. */ | |
608 | # undef strstr | |
f434ba03 PA |
609 | /* Assume strstr is always declared. */ |
610 | _GL_WARN_ON_USE (strstr, "strstr is quadratic on many systems, and cannot " | |
611 | "work correctly on character strings in most " | |
612 | "multibyte locales - " | |
613 | "use mbsstr if you care about internationalization, " | |
614 | "or use strstr if you care about speed"); | |
f6ea5628 DJ |
615 | #endif |
616 | ||
617 | /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive | |
618 | comparison. */ | |
619 | #if @GNULIB_STRCASESTR@ | |
620 | # if @REPLACE_STRCASESTR@ | |
f434ba03 PA |
621 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
622 | # define strcasestr rpl_strcasestr | |
623 | # endif | |
624 | _GL_FUNCDECL_RPL (strcasestr, char *, | |
625 | (const char *haystack, const char *needle) | |
770d76d7 PA |
626 | _GL_ATTRIBUTE_PURE |
627 | _GL_ARG_NONNULL ((1, 2))); | |
f434ba03 PA |
628 | _GL_CXXALIAS_RPL (strcasestr, char *, |
629 | (const char *haystack, const char *needle)); | |
630 | # else | |
631 | # if ! @HAVE_STRCASESTR@ | |
632 | _GL_FUNCDECL_SYS (strcasestr, char *, | |
633 | (const char *haystack, const char *needle) | |
770d76d7 PA |
634 | _GL_ATTRIBUTE_PURE |
635 | _GL_ARG_NONNULL ((1, 2))); | |
f434ba03 PA |
636 | # endif |
637 | /* On some systems, this function is defined as an overloaded function: | |
638 | extern "C++" { const char * strcasestr (const char *, const char *); } | |
639 | extern "C++" { char * strcasestr (char *, const char *); } */ | |
640 | _GL_CXXALIAS_SYS_CAST2 (strcasestr, | |
641 | char *, (const char *haystack, const char *needle), | |
642 | const char *, (const char *haystack, const char *needle)); | |
f6ea5628 | 643 | # endif |
770d76d7 | 644 | # if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 10) && !defined __UCLIBC__) \ |
f434ba03 PA |
645 | && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4)) |
646 | _GL_CXXALIASWARN1 (strcasestr, char *, (char *haystack, const char *needle)); | |
647 | _GL_CXXALIASWARN1 (strcasestr, const char *, | |
648 | (const char *haystack, const char *needle)); | |
649 | # else | |
650 | _GL_CXXALIASWARN (strcasestr); | |
f6ea5628 DJ |
651 | # endif |
652 | #elif defined GNULIB_POSIXCHECK | |
653 | /* strcasestr() does not work with multibyte strings: | |
654 | It is a glibc extension, and glibc implements it only for unibyte | |
655 | locales. */ | |
656 | # undef strcasestr | |
f434ba03 PA |
657 | # if HAVE_RAW_DECL_STRCASESTR |
658 | _GL_WARN_ON_USE (strcasestr, "strcasestr does work correctly on character " | |
659 | "strings in multibyte locales - " | |
660 | "use mbscasestr if you care about " | |
661 | "internationalization, or use c-strcasestr if you want " | |
662 | "a locale independent function"); | |
663 | # endif | |
f6ea5628 DJ |
664 | #endif |
665 | ||
666 | /* Parse S into tokens separated by characters in DELIM. | |
667 | If S is NULL, the saved pointer in SAVE_PTR is used as | |
668 | the next starting point. For example: | |
f434ba03 PA |
669 | char s[] = "-abc-=-def"; |
670 | char *sp; | |
671 | x = strtok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
672 | x = strtok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
673 | x = strtok_r(NULL, "=", &sp); // x = NULL | |
674 | // s = "abc\0-def\0" | |
f6ea5628 DJ |
675 | |
676 | This is a variant of strtok() that is multithread-safe. | |
677 | ||
678 | For the POSIX documentation for this function, see: | |
679 | http://www.opengroup.org/susv3xsh/strtok.html | |
680 | ||
681 | Caveat: It modifies the original string. | |
682 | Caveat: These functions cannot be used on constant strings. | |
683 | Caveat: The identity of the delimiting character is lost. | |
684 | Caveat: It doesn't work with multibyte strings unless all of the delimiter | |
685 | characters are ASCII characters < 0x30. | |
686 | ||
687 | See also strsep(). */ | |
688 | #if @GNULIB_STRTOK_R@ | |
f434ba03 PA |
689 | # if @REPLACE_STRTOK_R@ |
690 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
691 | # undef strtok_r | |
692 | # define strtok_r rpl_strtok_r | |
693 | # endif | |
694 | _GL_FUNCDECL_RPL (strtok_r, char *, | |
695 | (char *restrict s, char const *restrict delim, | |
696 | char **restrict save_ptr) | |
697 | _GL_ARG_NONNULL ((2, 3))); | |
698 | _GL_CXXALIAS_RPL (strtok_r, char *, | |
699 | (char *restrict s, char const *restrict delim, | |
700 | char **restrict save_ptr)); | |
701 | # else | |
702 | # if @UNDEFINE_STRTOK_R@ || defined GNULIB_POSIXCHECK | |
703 | # undef strtok_r | |
704 | # endif | |
705 | # if ! @HAVE_DECL_STRTOK_R@ | |
706 | _GL_FUNCDECL_SYS (strtok_r, char *, | |
707 | (char *restrict s, char const *restrict delim, | |
708 | char **restrict save_ptr) | |
709 | _GL_ARG_NONNULL ((2, 3))); | |
710 | # endif | |
711 | _GL_CXXALIAS_SYS (strtok_r, char *, | |
712 | (char *restrict s, char const *restrict delim, | |
713 | char **restrict save_ptr)); | |
f6ea5628 | 714 | # endif |
f434ba03 | 715 | _GL_CXXALIASWARN (strtok_r); |
f6ea5628 | 716 | # if defined GNULIB_POSIXCHECK |
f434ba03 PA |
717 | _GL_WARN_ON_USE (strtok_r, "strtok_r cannot work correctly on character " |
718 | "strings in multibyte locales - " | |
719 | "use mbstok_r if you care about internationalization"); | |
f6ea5628 DJ |
720 | # endif |
721 | #elif defined GNULIB_POSIXCHECK | |
722 | # undef strtok_r | |
f434ba03 PA |
723 | # if HAVE_RAW_DECL_STRTOK_R |
724 | _GL_WARN_ON_USE (strtok_r, "strtok_r is unportable - " | |
725 | "use gnulib module strtok_r for portability"); | |
726 | # endif | |
f6ea5628 DJ |
727 | #endif |
728 | ||
729 | ||
730 | /* The following functions are not specified by POSIX. They are gnulib | |
731 | extensions. */ | |
732 | ||
733 | #if @GNULIB_MBSLEN@ | |
734 | /* Return the number of multibyte characters in the character string STRING. | |
735 | This considers multibyte characters, unlike strlen, which counts bytes. */ | |
f434ba03 PA |
736 | # ifdef __MirBSD__ /* MirBSD defines mbslen as a macro. Override it. */ |
737 | # undef mbslen | |
738 | # endif | |
739 | # if @HAVE_MBSLEN@ /* AIX, OSF/1, MirBSD define mbslen already in libc. */ | |
740 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
741 | # define mbslen rpl_mbslen | |
742 | # endif | |
770d76d7 PA |
743 | _GL_FUNCDECL_RPL (mbslen, size_t, (const char *string) |
744 | _GL_ATTRIBUTE_PURE | |
745 | _GL_ARG_NONNULL ((1))); | |
f434ba03 PA |
746 | _GL_CXXALIAS_RPL (mbslen, size_t, (const char *string)); |
747 | # else | |
770d76d7 PA |
748 | _GL_FUNCDECL_SYS (mbslen, size_t, (const char *string) |
749 | _GL_ATTRIBUTE_PURE | |
750 | _GL_ARG_NONNULL ((1))); | |
f434ba03 PA |
751 | _GL_CXXALIAS_SYS (mbslen, size_t, (const char *string)); |
752 | # endif | |
753 | _GL_CXXALIASWARN (mbslen); | |
f6ea5628 DJ |
754 | #endif |
755 | ||
756 | #if @GNULIB_MBSNLEN@ | |
757 | /* Return the number of multibyte characters in the character string starting | |
758 | at STRING and ending at STRING + LEN. */ | |
f434ba03 | 759 | _GL_EXTERN_C size_t mbsnlen (const char *string, size_t len) |
770d76d7 | 760 | _GL_ATTRIBUTE_PURE |
f434ba03 | 761 | _GL_ARG_NONNULL ((1)); |
f6ea5628 DJ |
762 | #endif |
763 | ||
764 | #if @GNULIB_MBSCHR@ | |
765 | /* Locate the first single-byte character C in the character string STRING, | |
766 | and return a pointer to it. Return NULL if C is not found in STRING. | |
767 | Unlike strchr(), this function works correctly in multibyte locales with | |
768 | encodings such as GB18030. */ | |
f434ba03 PA |
769 | # if defined __hpux |
770 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
771 | # define mbschr rpl_mbschr /* avoid collision with HP-UX function */ | |
772 | # endif | |
773 | _GL_FUNCDECL_RPL (mbschr, char *, (const char *string, int c) | |
770d76d7 | 774 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
775 | _GL_ARG_NONNULL ((1))); |
776 | _GL_CXXALIAS_RPL (mbschr, char *, (const char *string, int c)); | |
777 | # else | |
778 | _GL_FUNCDECL_SYS (mbschr, char *, (const char *string, int c) | |
770d76d7 | 779 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
780 | _GL_ARG_NONNULL ((1))); |
781 | _GL_CXXALIAS_SYS (mbschr, char *, (const char *string, int c)); | |
782 | # endif | |
783 | _GL_CXXALIASWARN (mbschr); | |
f6ea5628 DJ |
784 | #endif |
785 | ||
786 | #if @GNULIB_MBSRCHR@ | |
787 | /* Locate the last single-byte character C in the character string STRING, | |
788 | and return a pointer to it. Return NULL if C is not found in STRING. | |
789 | Unlike strrchr(), this function works correctly in multibyte locales with | |
790 | encodings such as GB18030. */ | |
770d76d7 | 791 | # if defined __hpux || defined __INTERIX |
f434ba03 | 792 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
770d76d7 | 793 | # define mbsrchr rpl_mbsrchr /* avoid collision with system function */ |
f434ba03 PA |
794 | # endif |
795 | _GL_FUNCDECL_RPL (mbsrchr, char *, (const char *string, int c) | |
770d76d7 | 796 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
797 | _GL_ARG_NONNULL ((1))); |
798 | _GL_CXXALIAS_RPL (mbsrchr, char *, (const char *string, int c)); | |
799 | # else | |
800 | _GL_FUNCDECL_SYS (mbsrchr, char *, (const char *string, int c) | |
770d76d7 | 801 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
802 | _GL_ARG_NONNULL ((1))); |
803 | _GL_CXXALIAS_SYS (mbsrchr, char *, (const char *string, int c)); | |
804 | # endif | |
805 | _GL_CXXALIASWARN (mbsrchr); | |
f6ea5628 DJ |
806 | #endif |
807 | ||
808 | #if @GNULIB_MBSSTR@ | |
809 | /* Find the first occurrence of the character string NEEDLE in the character | |
810 | string HAYSTACK. Return NULL if NEEDLE is not found in HAYSTACK. | |
811 | Unlike strstr(), this function works correctly in multibyte locales with | |
812 | encodings different from UTF-8. */ | |
f434ba03 | 813 | _GL_EXTERN_C char * mbsstr (const char *haystack, const char *needle) |
770d76d7 | 814 | _GL_ATTRIBUTE_PURE |
f434ba03 | 815 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
816 | #endif |
817 | ||
818 | #if @GNULIB_MBSCASECMP@ | |
819 | /* Compare the character strings S1 and S2, ignoring case, returning less than, | |
820 | equal to or greater than zero if S1 is lexicographically less than, equal to | |
821 | or greater than S2. | |
822 | Note: This function may, in multibyte locales, return 0 for strings of | |
823 | different lengths! | |
824 | Unlike strcasecmp(), this function works correctly in multibyte locales. */ | |
f434ba03 | 825 | _GL_EXTERN_C int mbscasecmp (const char *s1, const char *s2) |
770d76d7 | 826 | _GL_ATTRIBUTE_PURE |
f434ba03 | 827 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
828 | #endif |
829 | ||
830 | #if @GNULIB_MBSNCASECMP@ | |
831 | /* Compare the initial segment of the character string S1 consisting of at most | |
832 | N characters with the initial segment of the character string S2 consisting | |
833 | of at most N characters, ignoring case, returning less than, equal to or | |
834 | greater than zero if the initial segment of S1 is lexicographically less | |
835 | than, equal to or greater than the initial segment of S2. | |
836 | Note: This function may, in multibyte locales, return 0 for initial segments | |
837 | of different lengths! | |
838 | Unlike strncasecmp(), this function works correctly in multibyte locales. | |
839 | But beware that N is not a byte count but a character count! */ | |
f434ba03 | 840 | _GL_EXTERN_C int mbsncasecmp (const char *s1, const char *s2, size_t n) |
770d76d7 | 841 | _GL_ATTRIBUTE_PURE |
f434ba03 | 842 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
843 | #endif |
844 | ||
845 | #if @GNULIB_MBSPCASECMP@ | |
846 | /* Compare the initial segment of the character string STRING consisting of | |
847 | at most mbslen (PREFIX) characters with the character string PREFIX, | |
770d76d7 PA |
848 | ignoring case. If the two match, return a pointer to the first byte |
849 | after this prefix in STRING. Otherwise, return NULL. | |
850 | Note: This function may, in multibyte locales, return non-NULL if STRING | |
851 | is of smaller length than PREFIX! | |
f6ea5628 DJ |
852 | Unlike strncasecmp(), this function works correctly in multibyte |
853 | locales. */ | |
f434ba03 | 854 | _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix) |
770d76d7 | 855 | _GL_ATTRIBUTE_PURE |
f434ba03 | 856 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
857 | #endif |
858 | ||
859 | #if @GNULIB_MBSCASESTR@ | |
860 | /* Find the first occurrence of the character string NEEDLE in the character | |
861 | string HAYSTACK, using case-insensitive comparison. | |
862 | Note: This function may, in multibyte locales, return success even if | |
863 | strlen (haystack) < strlen (needle) ! | |
864 | Unlike strcasestr(), this function works correctly in multibyte locales. */ | |
f434ba03 | 865 | _GL_EXTERN_C char * mbscasestr (const char *haystack, const char *needle) |
770d76d7 | 866 | _GL_ATTRIBUTE_PURE |
f434ba03 | 867 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
868 | #endif |
869 | ||
870 | #if @GNULIB_MBSCSPN@ | |
871 | /* Find the first occurrence in the character string STRING of any character | |
872 | in the character string ACCEPT. Return the number of bytes from the | |
873 | beginning of the string to this occurrence, or to the end of the string | |
874 | if none exists. | |
875 | Unlike strcspn(), this function works correctly in multibyte locales. */ | |
f434ba03 | 876 | _GL_EXTERN_C size_t mbscspn (const char *string, const char *accept) |
770d76d7 | 877 | _GL_ATTRIBUTE_PURE |
f434ba03 | 878 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
879 | #endif |
880 | ||
881 | #if @GNULIB_MBSPBRK@ | |
882 | /* Find the first occurrence in the character string STRING of any character | |
883 | in the character string ACCEPT. Return the pointer to it, or NULL if none | |
884 | exists. | |
885 | Unlike strpbrk(), this function works correctly in multibyte locales. */ | |
f434ba03 PA |
886 | # if defined __hpux |
887 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
888 | # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */ | |
889 | # endif | |
890 | _GL_FUNCDECL_RPL (mbspbrk, char *, (const char *string, const char *accept) | |
770d76d7 | 891 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
892 | _GL_ARG_NONNULL ((1, 2))); |
893 | _GL_CXXALIAS_RPL (mbspbrk, char *, (const char *string, const char *accept)); | |
894 | # else | |
895 | _GL_FUNCDECL_SYS (mbspbrk, char *, (const char *string, const char *accept) | |
770d76d7 | 896 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
897 | _GL_ARG_NONNULL ((1, 2))); |
898 | _GL_CXXALIAS_SYS (mbspbrk, char *, (const char *string, const char *accept)); | |
899 | # endif | |
900 | _GL_CXXALIASWARN (mbspbrk); | |
f6ea5628 DJ |
901 | #endif |
902 | ||
903 | #if @GNULIB_MBSSPN@ | |
904 | /* Find the first occurrence in the character string STRING of any character | |
905 | not in the character string REJECT. Return the number of bytes from the | |
906 | beginning of the string to this occurrence, or to the end of the string | |
907 | if none exists. | |
908 | Unlike strspn(), this function works correctly in multibyte locales. */ | |
f434ba03 | 909 | _GL_EXTERN_C size_t mbsspn (const char *string, const char *reject) |
770d76d7 | 910 | _GL_ATTRIBUTE_PURE |
f434ba03 | 911 | _GL_ARG_NONNULL ((1, 2)); |
f6ea5628 DJ |
912 | #endif |
913 | ||
914 | #if @GNULIB_MBSSEP@ | |
915 | /* Search the next delimiter (multibyte character listed in the character | |
916 | string DELIM) starting at the character string *STRINGP. | |
917 | If one is found, overwrite it with a NUL, and advance *STRINGP to point | |
918 | to the next multibyte character after it. Otherwise, set *STRINGP to NULL. | |
919 | If *STRINGP was already NULL, nothing happens. | |
920 | Return the old value of *STRINGP. | |
921 | ||
922 | This is a variant of mbstok_r() that supports empty fields. | |
923 | ||
924 | Caveat: It modifies the original string. | |
925 | Caveat: These functions cannot be used on constant strings. | |
926 | Caveat: The identity of the delimiting character is lost. | |
927 | ||
928 | See also mbstok_r(). */ | |
f434ba03 PA |
929 | _GL_EXTERN_C char * mbssep (char **stringp, const char *delim) |
930 | _GL_ARG_NONNULL ((1, 2)); | |
f6ea5628 DJ |
931 | #endif |
932 | ||
933 | #if @GNULIB_MBSTOK_R@ | |
934 | /* Parse the character string STRING into tokens separated by characters in | |
935 | the character string DELIM. | |
936 | If STRING is NULL, the saved pointer in SAVE_PTR is used as | |
937 | the next starting point. For example: | |
f434ba03 PA |
938 | char s[] = "-abc-=-def"; |
939 | char *sp; | |
940 | x = mbstok_r(s, "-", &sp); // x = "abc", sp = "=-def" | |
941 | x = mbstok_r(NULL, "-=", &sp); // x = "def", sp = NULL | |
942 | x = mbstok_r(NULL, "=", &sp); // x = NULL | |
943 | // s = "abc\0-def\0" | |
f6ea5628 DJ |
944 | |
945 | Caveat: It modifies the original string. | |
946 | Caveat: These functions cannot be used on constant strings. | |
947 | Caveat: The identity of the delimiting character is lost. | |
948 | ||
949 | See also mbssep(). */ | |
f434ba03 PA |
950 | _GL_EXTERN_C char * mbstok_r (char *string, const char *delim, char **save_ptr) |
951 | _GL_ARG_NONNULL ((2, 3)); | |
f6ea5628 DJ |
952 | #endif |
953 | ||
954 | /* Map any int, typically from errno, into an error message. */ | |
955 | #if @GNULIB_STRERROR@ | |
956 | # if @REPLACE_STRERROR@ | |
f434ba03 PA |
957 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
958 | # undef strerror | |
959 | # define strerror rpl_strerror | |
960 | # endif | |
961 | _GL_FUNCDECL_RPL (strerror, char *, (int)); | |
962 | _GL_CXXALIAS_RPL (strerror, char *, (int)); | |
963 | # else | |
964 | _GL_CXXALIAS_SYS (strerror, char *, (int)); | |
f6ea5628 | 965 | # endif |
f434ba03 | 966 | _GL_CXXALIASWARN (strerror); |
f6ea5628 DJ |
967 | #elif defined GNULIB_POSIXCHECK |
968 | # undef strerror | |
f434ba03 PA |
969 | /* Assume strerror is always declared. */ |
970 | _GL_WARN_ON_USE (strerror, "strerror is unportable - " | |
971 | "use gnulib module strerror to guarantee non-NULL result"); | |
f6ea5628 DJ |
972 | #endif |
973 | ||
770d76d7 PA |
974 | /* Map any int, typically from errno, into an error message. Multithread-safe. |
975 | Uses the POSIX declaration, not the glibc declaration. */ | |
976 | #if @GNULIB_STRERROR_R@ | |
977 | # if @REPLACE_STRERROR_R@ | |
978 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) | |
979 | # undef strerror_r | |
980 | # define strerror_r rpl_strerror_r | |
981 | # endif | |
982 | _GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen) | |
983 | _GL_ARG_NONNULL ((2))); | |
984 | _GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)); | |
985 | # else | |
986 | # if !@HAVE_DECL_STRERROR_R@ | |
987 | _GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen) | |
988 | _GL_ARG_NONNULL ((2))); | |
989 | # endif | |
990 | _GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)); | |
991 | # endif | |
992 | # if @HAVE_DECL_STRERROR_R@ | |
993 | _GL_CXXALIASWARN (strerror_r); | |
994 | # endif | |
995 | #elif defined GNULIB_POSIXCHECK | |
996 | # undef strerror_r | |
997 | # if HAVE_RAW_DECL_STRERROR_R | |
998 | _GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - " | |
999 | "use gnulib module strerror_r-posix for portability"); | |
1000 | # endif | |
1001 | #endif | |
1002 | ||
f6ea5628 DJ |
1003 | #if @GNULIB_STRSIGNAL@ |
1004 | # if @REPLACE_STRSIGNAL@ | |
f434ba03 PA |
1005 | # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |
1006 | # define strsignal rpl_strsignal | |
1007 | # endif | |
1008 | _GL_FUNCDECL_RPL (strsignal, char *, (int __sig)); | |
1009 | _GL_CXXALIAS_RPL (strsignal, char *, (int __sig)); | |
1010 | # else | |
1011 | # if ! @HAVE_DECL_STRSIGNAL@ | |
1012 | _GL_FUNCDECL_SYS (strsignal, char *, (int __sig)); | |
1013 | # endif | |
1014 | /* Need to cast, because on Cygwin 1.5.x systems, the return type is | |
1015 | 'const char *'. */ | |
1016 | _GL_CXXALIAS_SYS_CAST (strsignal, char *, (int __sig)); | |
f6ea5628 | 1017 | # endif |
f434ba03 | 1018 | _GL_CXXALIASWARN (strsignal); |
f6ea5628 DJ |
1019 | #elif defined GNULIB_POSIXCHECK |
1020 | # undef strsignal | |
f434ba03 PA |
1021 | # if HAVE_RAW_DECL_STRSIGNAL |
1022 | _GL_WARN_ON_USE (strsignal, "strsignal is unportable - " | |
1023 | "use gnulib module strsignal for portability"); | |
1024 | # endif | |
f6ea5628 DJ |
1025 | #endif |
1026 | ||
f434ba03 PA |
1027 | #if @GNULIB_STRVERSCMP@ |
1028 | # if !@HAVE_STRVERSCMP@ | |
1029 | _GL_FUNCDECL_SYS (strverscmp, int, (const char *, const char *) | |
770d76d7 | 1030 | _GL_ATTRIBUTE_PURE |
f434ba03 PA |
1031 | _GL_ARG_NONNULL ((1, 2))); |
1032 | # endif | |
1033 | _GL_CXXALIAS_SYS (strverscmp, int, (const char *, const char *)); | |
1034 | _GL_CXXALIASWARN (strverscmp); | |
1035 | #elif defined GNULIB_POSIXCHECK | |
1036 | # undef strverscmp | |
1037 | # if HAVE_RAW_DECL_STRVERSCMP | |
1038 | _GL_WARN_ON_USE (strverscmp, "strverscmp is unportable - " | |
1039 | "use gnulib module strverscmp for portability"); | |
1040 | # endif | |
f6ea5628 DJ |
1041 | #endif |
1042 | ||
f434ba03 | 1043 | |
770d76d7 PA |
1044 | #endif /* _@GUARD_PREFIX@_STRING_H */ |
1045 | #endif /* _@GUARD_PREFIX@_STRING_H */ | |
4a626d0a | 1046 | #endif |