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1 /* -*- buffer-read-only: t -*- vi: set ro: */
2 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
3 /* A GNU-like <string.h>.
4 
5    Copyright (C) 1995-1996, 2001-2009 Free Software Foundation, Inc.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3, or (at your option)
10    any later version.
11 
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16 
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, write to the Free Software Foundation,
19    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
20 
21 #ifndef _GL_STRING_H
22 
23 #if __GNUC__ >= 3
24 @PRAGMA_SYSTEM_HEADER@
25 #endif
26 
27 /* The include_next requires a split double-inclusion guard.  */
28 #@INCLUDE_NEXT@ @NEXT_STRING_H@
29 
30 #ifndef _GL_STRING_H
31 #define _GL_STRING_H
32 
33 
34 #ifndef __attribute__
35 /* This feature is available in gcc versions 2.5 and later.  */
36 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)
37 #  define __attribute__(Spec) /* empty */
38 # endif
39 /* The attribute __pure__ was added in gcc 2.96.  */
40 # if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 96)
41 #  define __pure__ /* empty */
42 # endif
43 #endif
44 
45 
46 /* The definition of GL_LINK_WARNING is copied here.  */
47 
48 
49 #ifdef __cplusplus
50 extern "C" {
51 #endif
52 
53 
54 /* Return the first instance of C within N bytes of S, or NULL.  */
55 #if @GNULIB_MEMCHR@
56 # if @REPLACE_MEMCHR@
57 #  define memchr rpl_memchr
58 extern void *memchr (void const *__s, int __c, size_t __n)
59   __attribute__ ((__pure__));
60 # endif
61 #elif defined GNULIB_POSIXCHECK
62 # undef memchr
63 # define memchr(s,c,n) \
64     (GL_LINK_WARNING ("memchr has platform-specific bugs - " \
65                       "use gnulib module memchr for portability" ), \
66      memchr (s, c, n))
67 #endif
68 
69 /* Return the first occurrence of NEEDLE in HAYSTACK.  */
70 #if @GNULIB_MEMMEM@
71 # if @REPLACE_MEMMEM@
72 #  define memmem rpl_memmem
73 # endif
74 # if ! @HAVE_DECL_MEMMEM@ || @REPLACE_MEMMEM@
75 extern void *memmem (void const *__haystack, size_t __haystack_len,
76 		     void const *__needle, size_t __needle_len)
77   __attribute__ ((__pure__));
78 # endif
79 #elif defined GNULIB_POSIXCHECK
80 # undef memmem
81 # define memmem(a,al,b,bl) \
82     (GL_LINK_WARNING ("memmem is unportable and often quadratic - " \
83                       "use gnulib module memmem-simple for portability, " \
84                       "and module memmem for speed" ), \
85      memmem (a, al, b, bl))
86 #endif
87 
88 /* Copy N bytes of SRC to DEST, return pointer to bytes after the
89    last written byte.  */
90 #if @GNULIB_MEMPCPY@
91 # if ! @HAVE_MEMPCPY@
92 extern void *mempcpy (void *restrict __dest, void const *restrict __src,
93 		      size_t __n);
94 # endif
95 #elif defined GNULIB_POSIXCHECK
96 # undef mempcpy
97 # define mempcpy(a,b,n) \
98     (GL_LINK_WARNING ("mempcpy is unportable - " \
99                       "use gnulib module mempcpy for portability"), \
100      mempcpy (a, b, n))
101 #endif
102 
103 /* Search backwards through a block for a byte (specified as an int).  */
104 #if @GNULIB_MEMRCHR@
105 # if ! @HAVE_DECL_MEMRCHR@
106 extern void *memrchr (void const *, int, size_t)
107   __attribute__ ((__pure__));
108 # endif
109 #elif defined GNULIB_POSIXCHECK
110 # undef memrchr
111 # define memrchr(a,b,c) \
112     (GL_LINK_WARNING ("memrchr is unportable - " \
113                       "use gnulib module memrchr for portability"), \
114      memrchr (a, b, c))
115 #endif
116 
117 /* Find the first occurrence of C in S.  More efficient than
118    memchr(S,C,N), at the expense of undefined behavior if C does not
119    occur within N bytes.  */
120 #if @GNULIB_RAWMEMCHR@
121 # if ! @HAVE_RAWMEMCHR@
122 extern void *rawmemchr (void const *__s, int __c_in)
123   __attribute__ ((__pure__));
124 # endif
125 #elif defined GNULIB_POSIXCHECK
126 # undef rawmemchr
127 # define rawmemchr(a,b) \
128     (GL_LINK_WARNING ("rawmemchr is unportable - " \
129                       "use gnulib module rawmemchr for portability"), \
130      rawmemchr (a, b))
131 #endif
132 
133 /* Copy SRC to DST, returning the address of the terminating '\0' in DST.  */
134 #if @GNULIB_STPCPY@
135 # if ! @HAVE_STPCPY@
136 extern char *stpcpy (char *restrict __dst, char const *restrict __src);
137 # endif
138 #elif defined GNULIB_POSIXCHECK
139 # undef stpcpy
140 # define stpcpy(a,b) \
141     (GL_LINK_WARNING ("stpcpy is unportable - " \
142                       "use gnulib module stpcpy for portability"), \
143      stpcpy (a, b))
144 #endif
145 
146 /* Copy no more than N bytes of SRC to DST, returning a pointer past the
147    last non-NUL byte written into DST.  */
148 #if @GNULIB_STPNCPY@
149 # if ! @HAVE_STPNCPY@
150 #  define stpncpy gnu_stpncpy
151 extern char *stpncpy (char *restrict __dst, char const *restrict __src,
152 		      size_t __n);
153 # endif
154 #elif defined GNULIB_POSIXCHECK
155 # undef stpncpy
156 # define stpncpy(a,b,n) \
157     (GL_LINK_WARNING ("stpncpy is unportable - " \
158                       "use gnulib module stpncpy for portability"), \
159      stpncpy (a, b, n))
160 #endif
161 
162 #if defined GNULIB_POSIXCHECK
163 /* strchr() does not work with multibyte strings if the locale encoding is
164    GB18030 and the character to be searched is a digit.  */
165 # undef strchr
166 # define strchr(s,c) \
167     (GL_LINK_WARNING ("strchr cannot work correctly on character strings " \
168                       "in some multibyte locales - " \
169                       "use mbschr if you care about internationalization"), \
170      strchr (s, c))
171 #endif
172 
173 /* Find the first occurrence of C in S or the final NUL byte.  */
174 #if @GNULIB_STRCHRNUL@
175 # if ! @HAVE_STRCHRNUL@
176 extern char *strchrnul (char const *__s, int __c_in)
177   __attribute__ ((__pure__));
178 # endif
179 #elif defined GNULIB_POSIXCHECK
180 # undef strchrnul
181 # define strchrnul(a,b) \
182     (GL_LINK_WARNING ("strchrnul is unportable - " \
183                       "use gnulib module strchrnul for portability"), \
184      strchrnul (a, b))
185 #endif
186 
187 /* Duplicate S, returning an identical malloc'd string.  */
188 #if @GNULIB_STRDUP@
189 # if @REPLACE_STRDUP@
190 #  undef strdup
191 #  define strdup rpl_strdup
192 # endif
193 # if !(@HAVE_DECL_STRDUP@ || defined strdup) || @REPLACE_STRDUP@
194 extern char *strdup (char const *__s);
195 # endif
196 #elif defined GNULIB_POSIXCHECK
197 # undef strdup
198 # define strdup(a) \
199     (GL_LINK_WARNING ("strdup is unportable - " \
200                       "use gnulib module strdup for portability"), \
201      strdup (a))
202 #endif
203 
204 /* Return a newly allocated copy of at most N bytes of STRING.  */
205 #if @GNULIB_STRNDUP@
206 # if ! @HAVE_STRNDUP@
207 #  undef strndup
208 #  define strndup rpl_strndup
209 # endif
210 # if ! @HAVE_STRNDUP@ || ! @HAVE_DECL_STRNDUP@
211 extern char *strndup (char const *__string, size_t __n);
212 # endif
213 #elif defined GNULIB_POSIXCHECK
214 # undef strndup
215 # define strndup(a,n) \
216     (GL_LINK_WARNING ("strndup is unportable - " \
217                       "use gnulib module strndup for portability"), \
218      strndup (a, n))
219 #endif
220 
221 /* Find the length (number of bytes) of STRING, but scan at most
222    MAXLEN bytes.  If no '\0' terminator is found in that many bytes,
223    return MAXLEN.  */
224 #if @GNULIB_STRNLEN@
225 # if ! @HAVE_DECL_STRNLEN@
226 extern size_t strnlen (char const *__string, size_t __maxlen)
227   __attribute__ ((__pure__));
228 # endif
229 #elif defined GNULIB_POSIXCHECK
230 # undef strnlen
231 # define strnlen(a,n) \
232     (GL_LINK_WARNING ("strnlen is unportable - " \
233                       "use gnulib module strnlen for portability"), \
234      strnlen (a, n))
235 #endif
236 
237 #if defined GNULIB_POSIXCHECK
238 /* strcspn() assumes the second argument is a list of single-byte characters.
239    Even in this simple case, it does not work with multibyte strings if the
240    locale encoding is GB18030 and one of the characters to be searched is a
241    digit.  */
242 # undef strcspn
243 # define strcspn(s,a) \
244     (GL_LINK_WARNING ("strcspn cannot work correctly on character strings " \
245                       "in multibyte locales - " \
246                       "use mbscspn if you care about internationalization"), \
247      strcspn (s, a))
248 #endif
249 
250 /* Find the first occurrence in S of any character in ACCEPT.  */
251 #if @GNULIB_STRPBRK@
252 # if ! @HAVE_STRPBRK@
253 extern char *strpbrk (char const *__s, char const *__accept)
254   __attribute__ ((__pure__));
255 # endif
256 # if defined GNULIB_POSIXCHECK
257 /* strpbrk() assumes the second argument is a list of single-byte characters.
258    Even in this simple case, it does not work with multibyte strings if the
259    locale encoding is GB18030 and one of the characters to be searched is a
260    digit.  */
261 #  undef strpbrk
262 #  define strpbrk(s,a) \
263      (GL_LINK_WARNING ("strpbrk cannot work correctly on character strings " \
264                        "in multibyte locales - " \
265                        "use mbspbrk if you care about internationalization"), \
266       strpbrk (s, a))
267 # endif
268 #elif defined GNULIB_POSIXCHECK
269 # undef strpbrk
270 # define strpbrk(s,a) \
271     (GL_LINK_WARNING ("strpbrk is unportable - " \
272                       "use gnulib module strpbrk for portability"), \
273      strpbrk (s, a))
274 #endif
275 
276 #if defined GNULIB_POSIXCHECK
277 /* strspn() assumes the second argument is a list of single-byte characters.
278    Even in this simple case, it cannot work with multibyte strings.  */
279 # undef strspn
280 # define strspn(s,a) \
281     (GL_LINK_WARNING ("strspn cannot work correctly on character strings " \
282                       "in multibyte locales - " \
283                       "use mbsspn if you care about internationalization"), \
284      strspn (s, a))
285 #endif
286 
287 #if defined GNULIB_POSIXCHECK
288 /* strrchr() does not work with multibyte strings if the locale encoding is
289    GB18030 and the character to be searched is a digit.  */
290 # undef strrchr
291 # define strrchr(s,c) \
292     (GL_LINK_WARNING ("strrchr cannot work correctly on character strings " \
293                       "in some multibyte locales - " \
294                       "use mbsrchr if you care about internationalization"), \
295      strrchr (s, c))
296 #endif
297 
298 /* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
299    If one is found, overwrite it with a NUL, and advance *STRINGP
300    to point to the next char after it.  Otherwise, set *STRINGP to NULL.
301    If *STRINGP was already NULL, nothing happens.
302    Return the old value of *STRINGP.
303 
304    This is a variant of strtok() that is multithread-safe and supports
305    empty fields.
306 
307    Caveat: It modifies the original string.
308    Caveat: These functions cannot be used on constant strings.
309    Caveat: The identity of the delimiting character is lost.
310    Caveat: It doesn't work with multibyte strings unless all of the delimiter
311            characters are ASCII characters < 0x30.
312 
313    See also strtok_r().  */
314 #if @GNULIB_STRSEP@
315 # if ! @HAVE_STRSEP@
316 extern char *strsep (char **restrict __stringp, char const *restrict __delim);
317 # endif
318 # if defined GNULIB_POSIXCHECK
319 #  undef strsep
320 #  define strsep(s,d) \
321      (GL_LINK_WARNING ("strsep cannot work correctly on character strings " \
322                        "in multibyte locales - " \
323                        "use mbssep if you care about internationalization"), \
324       strsep (s, d))
325 # endif
326 #elif defined GNULIB_POSIXCHECK
327 # undef strsep
328 # define strsep(s,d) \
329     (GL_LINK_WARNING ("strsep is unportable - " \
330                       "use gnulib module strsep for portability"), \
331      strsep (s, d))
332 #endif
333 
334 #if @GNULIB_STRSTR@
335 # if @REPLACE_STRSTR@
336 #  define strstr rpl_strstr
337 char *strstr (const char *haystack, const char *needle)
338   __attribute__ ((__pure__));
339 # endif
340 #elif defined GNULIB_POSIXCHECK
341 /* strstr() does not work with multibyte strings if the locale encoding is
342    different from UTF-8:
343    POSIX says that it operates on "strings", and "string" in POSIX is defined
344    as a sequence of bytes, not of characters.  */
345 # undef strstr
346 # define strstr(a,b) \
347     (GL_LINK_WARNING ("strstr is quadratic on many systems, and cannot " \
348                       "work correctly on character strings in most "    \
349                       "multibyte locales - " \
350                       "use mbsstr if you care about internationalization, " \
351                       "or use strstr if you care about speed"), \
352      strstr (a, b))
353 #endif
354 
355 /* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
356    comparison.  */
357 #if @GNULIB_STRCASESTR@
358 # if @REPLACE_STRCASESTR@
359 #  define strcasestr rpl_strcasestr
360 # endif
361 # if ! @HAVE_STRCASESTR@ || @REPLACE_STRCASESTR@
362 extern char *strcasestr (const char *haystack, const char *needle)
363   __attribute__ ((__pure__));
364 # endif
365 #elif defined GNULIB_POSIXCHECK
366 /* strcasestr() does not work with multibyte strings:
367    It is a glibc extension, and glibc implements it only for unibyte
368    locales.  */
369 # undef strcasestr
370 # define strcasestr(a,b) \
371     (GL_LINK_WARNING ("strcasestr does work correctly on character strings " \
372                       "in multibyte locales - " \
373                       "use mbscasestr if you care about " \
374                       "internationalization, or use c-strcasestr if you want " \
375                       "a locale independent function"), \
376      strcasestr (a, b))
377 #endif
378 
379 /* Parse S into tokens separated by characters in DELIM.
380    If S is NULL, the saved pointer in SAVE_PTR is used as
381    the next starting point.  For example:
382 	char s[] = "-abc-=-def";
383 	char *sp;
384 	x = strtok_r(s, "-", &sp);	// x = "abc", sp = "=-def"
385 	x = strtok_r(NULL, "-=", &sp);	// x = "def", sp = NULL
386 	x = strtok_r(NULL, "=", &sp);	// x = NULL
387 		// s = "abc\0-def\0"
388 
389    This is a variant of strtok() that is multithread-safe.
390 
391    For the POSIX documentation for this function, see:
392    http://www.opengroup.org/susv3xsh/strtok.html
393 
394    Caveat: It modifies the original string.
395    Caveat: These functions cannot be used on constant strings.
396    Caveat: The identity of the delimiting character is lost.
397    Caveat: It doesn't work with multibyte strings unless all of the delimiter
398            characters are ASCII characters < 0x30.
399 
400    See also strsep().  */
401 #if @GNULIB_STRTOK_R@
402 # if ! @HAVE_DECL_STRTOK_R@
403 extern char *strtok_r (char *restrict s, char const *restrict delim,
404 		       char **restrict save_ptr);
405 # endif
406 # if defined GNULIB_POSIXCHECK
407 #  undef strtok_r
408 #  define strtok_r(s,d,p) \
409      (GL_LINK_WARNING ("strtok_r cannot work correctly on character strings " \
410                        "in multibyte locales - " \
411                        "use mbstok_r if you care about internationalization"), \
412       strtok_r (s, d, p))
413 # endif
414 #elif defined GNULIB_POSIXCHECK
415 # undef strtok_r
416 # define strtok_r(s,d,p) \
417     (GL_LINK_WARNING ("strtok_r is unportable - " \
418                       "use gnulib module strtok_r for portability"), \
419      strtok_r (s, d, p))
420 #endif
421 
422 
423 /* The following functions are not specified by POSIX.  They are gnulib
424    extensions.  */
425 
426 #if @GNULIB_MBSLEN@
427 /* Return the number of multibyte characters in the character string STRING.
428    This considers multibyte characters, unlike strlen, which counts bytes.  */
429 extern size_t mbslen (const char *string);
430 #endif
431 
432 #if @GNULIB_MBSNLEN@
433 /* Return the number of multibyte characters in the character string starting
434    at STRING and ending at STRING + LEN.  */
435 extern size_t mbsnlen (const char *string, size_t len);
436 #endif
437 
438 #if @GNULIB_MBSCHR@
439 /* Locate the first single-byte character C in the character string STRING,
440    and return a pointer to it.  Return NULL if C is not found in STRING.
441    Unlike strchr(), this function works correctly in multibyte locales with
442    encodings such as GB18030.  */
443 # define mbschr rpl_mbschr /* avoid collision with HP-UX function */
444 extern char * mbschr (const char *string, int c);
445 #endif
446 
447 #if @GNULIB_MBSRCHR@
448 /* Locate the last single-byte character C in the character string STRING,
449    and return a pointer to it.  Return NULL if C is not found in STRING.
450    Unlike strrchr(), this function works correctly in multibyte locales with
451    encodings such as GB18030.  */
452 # define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */
453 extern char * mbsrchr (const char *string, int c);
454 #endif
455 
456 #if @GNULIB_MBSSTR@
457 /* Find the first occurrence of the character string NEEDLE in the character
458    string HAYSTACK.  Return NULL if NEEDLE is not found in HAYSTACK.
459    Unlike strstr(), this function works correctly in multibyte locales with
460    encodings different from UTF-8.  */
461 extern char * mbsstr (const char *haystack, const char *needle);
462 #endif
463 
464 #if @GNULIB_MBSCASECMP@
465 /* Compare the character strings S1 and S2, ignoring case, returning less than,
466    equal to or greater than zero if S1 is lexicographically less than, equal to
467    or greater than S2.
468    Note: This function may, in multibyte locales, return 0 for strings of
469    different lengths!
470    Unlike strcasecmp(), this function works correctly in multibyte locales.  */
471 extern int mbscasecmp (const char *s1, const char *s2);
472 #endif
473 
474 #if @GNULIB_MBSNCASECMP@
475 /* Compare the initial segment of the character string S1 consisting of at most
476    N characters with the initial segment of the character string S2 consisting
477    of at most N characters, ignoring case, returning less than, equal to or
478    greater than zero if the initial segment of S1 is lexicographically less
479    than, equal to or greater than the initial segment of S2.
480    Note: This function may, in multibyte locales, return 0 for initial segments
481    of different lengths!
482    Unlike strncasecmp(), this function works correctly in multibyte locales.
483    But beware that N is not a byte count but a character count!  */
484 extern int mbsncasecmp (const char *s1, const char *s2, size_t n);
485 #endif
486 
487 #if @GNULIB_MBSPCASECMP@
488 /* Compare the initial segment of the character string STRING consisting of
489    at most mbslen (PREFIX) characters with the character string PREFIX,
490    ignoring case, returning less than, equal to or greater than zero if this
491    initial segment is lexicographically less than, equal to or greater than
492    PREFIX.
493    Note: This function may, in multibyte locales, return 0 if STRING is of
494    smaller length than PREFIX!
495    Unlike strncasecmp(), this function works correctly in multibyte
496    locales.  */
497 extern char * mbspcasecmp (const char *string, const char *prefix);
498 #endif
499 
500 #if @GNULIB_MBSCASESTR@
501 /* Find the first occurrence of the character string NEEDLE in the character
502    string HAYSTACK, using case-insensitive comparison.
503    Note: This function may, in multibyte locales, return success even if
504    strlen (haystack) < strlen (needle) !
505    Unlike strcasestr(), this function works correctly in multibyte locales.  */
506 extern char * mbscasestr (const char *haystack, const char *needle);
507 #endif
508 
509 #if @GNULIB_MBSCSPN@
510 /* Find the first occurrence in the character string STRING of any character
511    in the character string ACCEPT.  Return the number of bytes from the
512    beginning of the string to this occurrence, or to the end of the string
513    if none exists.
514    Unlike strcspn(), this function works correctly in multibyte locales.  */
515 extern size_t mbscspn (const char *string, const char *accept);
516 #endif
517 
518 #if @GNULIB_MBSPBRK@
519 /* Find the first occurrence in the character string STRING of any character
520    in the character string ACCEPT.  Return the pointer to it, or NULL if none
521    exists.
522    Unlike strpbrk(), this function works correctly in multibyte locales.  */
523 # define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
524 extern char * mbspbrk (const char *string, const char *accept);
525 #endif
526 
527 #if @GNULIB_MBSSPN@
528 /* Find the first occurrence in the character string STRING of any character
529    not in the character string REJECT.  Return the number of bytes from the
530    beginning of the string to this occurrence, or to the end of the string
531    if none exists.
532    Unlike strspn(), this function works correctly in multibyte locales.  */
533 extern size_t mbsspn (const char *string, const char *reject);
534 #endif
535 
536 #if @GNULIB_MBSSEP@
537 /* Search the next delimiter (multibyte character listed in the character
538    string DELIM) starting at the character string *STRINGP.
539    If one is found, overwrite it with a NUL, and advance *STRINGP to point
540    to the next multibyte character after it.  Otherwise, set *STRINGP to NULL.
541    If *STRINGP was already NULL, nothing happens.
542    Return the old value of *STRINGP.
543 
544    This is a variant of mbstok_r() that supports empty fields.
545 
546    Caveat: It modifies the original string.
547    Caveat: These functions cannot be used on constant strings.
548    Caveat: The identity of the delimiting character is lost.
549 
550    See also mbstok_r().  */
551 extern char * mbssep (char **stringp, const char *delim);
552 #endif
553 
554 #if @GNULIB_MBSTOK_R@
555 /* Parse the character string STRING into tokens separated by characters in
556    the character string DELIM.
557    If STRING is NULL, the saved pointer in SAVE_PTR is used as
558    the next starting point.  For example:
559 	char s[] = "-abc-=-def";
560 	char *sp;
561 	x = mbstok_r(s, "-", &sp);	// x = "abc", sp = "=-def"
562 	x = mbstok_r(NULL, "-=", &sp);	// x = "def", sp = NULL
563 	x = mbstok_r(NULL, "=", &sp);	// x = NULL
564 		// s = "abc\0-def\0"
565 
566    Caveat: It modifies the original string.
567    Caveat: These functions cannot be used on constant strings.
568    Caveat: The identity of the delimiting character is lost.
569 
570    See also mbssep().  */
571 extern char * mbstok_r (char *string, const char *delim, char **save_ptr);
572 #endif
573 
574 /* Map any int, typically from errno, into an error message.  */
575 #if @GNULIB_STRERROR@
576 # if @REPLACE_STRERROR@
577 #  undef strerror
578 #  define strerror rpl_strerror
579 extern char *strerror (int);
580 # endif
581 #elif defined GNULIB_POSIXCHECK
582 # undef strerror
583 # define strerror(e) \
584     (GL_LINK_WARNING ("strerror is unportable - " \
585                       "use gnulib module strerror to guarantee non-NULL result"), \
586      strerror (e))
587 #endif
588 
589 #if @GNULIB_STRSIGNAL@
590 # if @REPLACE_STRSIGNAL@
591 #  define strsignal rpl_strsignal
592 # endif
593 # if ! @HAVE_DECL_STRSIGNAL@ || @REPLACE_STRSIGNAL@
594 extern char *strsignal (int __sig);
595 # endif
596 #elif defined GNULIB_POSIXCHECK
597 # undef strsignal
598 # define strsignal(a) \
599     (GL_LINK_WARNING ("strsignal is unportable - " \
600                       "use gnulib module strsignal for portability"), \
601      strsignal (a))
602 #endif
603 
604 #if @GNULIB_STRVERSCMP@
605 # if !@HAVE_STRVERSCMP@
606 extern int strverscmp (const char *, const char *);
607 # endif
608 #elif defined GNULIB_POSIXCHECK
609 # undef strverscmp
610 # define strverscmp(a, b) \
611     (GL_LINK_WARNING ("strverscmp is unportable - " \
612                       "use gnulib module strverscmp for portability"), \
613      strverscmp (a, b))
614 #endif
615 
616 
617 #ifdef __cplusplus
618 }
619 #endif
620 
621 #endif /* _GL_STRING_H */
622 #endif /* _GL_STRING_H */
623