1 /* A GNU-like <stdlib.h>.
3 Copyright (C) 1995, 2001-2004, 2006-2010 Free Software Foundation, Inc.
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
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.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 @PRAGMA_SYSTEM_HEADER@
22 #if defined __need_malloc_and_calloc
23 /* Special invocation convention inside glibc header files. */
25 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
28 /* Normal invocation convention. */
32 /* The include_next requires a split double-inclusion guard. */
33 #@INCLUDE_NEXT@ @NEXT_STDLIB_H@
38 /* NetBSD 5.0 mis-defines NULL. */
41 /* Solaris declares getloadavg() in <sys/loadavg.h>. */
42 #if (@GNULIB_GETLOADAVG@ || defined GNULIB_POSIXCHECK) && @HAVE_SYS_LOADAVG_H@
43 # include <sys/loadavg.h>
46 /* OSF/1 5.1 declares 'struct random_data' in <random.h>, which is included
47 from <stdlib.h> if _REENTRANT is defined. Include it always. */
52 #if !@HAVE_STRUCT_RANDOM_DATA@ || (@GNULIB_RANDOM_R@ && !@HAVE_RANDOM_R@) \
53 || defined GNULIB_POSIXCHECK
57 #if !@HAVE_STRUCT_RANDOM_DATA@
60 int32_t *fptr; /* Front pointer. */
61 int32_t *rptr; /* Rear pointer. */
62 int32_t *state; /* Array of state values. */
63 int rand_type; /* Type of random number generator. */
64 int rand_deg; /* Degree of random number generator. */
65 int rand_sep; /* Distance between front and rear. */
66 int32_t *end_ptr; /* Pointer behind state table. */
70 #if (@GNULIB_MKSTEMP@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__
71 /* On MacOS X 10.3, only <unistd.h> declares mkstemp. */
72 /* On Cygwin 1.7.1, only <unistd.h> declares getsubopt. */
73 /* But avoid namespace pollution on glibc systems. */
77 /* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
79 /* The definition of _GL_ARG_NONNULL is copied here. */
81 /* The definition of _GL_WARN_ON_USE is copied here. */
84 /* Some systems do not define EXIT_*, despite otherwise supporting C89. */
86 # define EXIT_SUCCESS 0
88 /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
89 with proper operation of xargs. */
91 # define EXIT_FAILURE 1
92 #elif EXIT_FAILURE != 1
94 # define EXIT_FAILURE 1
99 /* Parse a signed decimal integer.
100 Returns the value of the integer. Errors are not detected. */
102 _GL_FUNCDECL_SYS (atoll, long long, (const char *string) _GL_ARG_NONNULL ((1)));
104 _GL_CXXALIAS_SYS (atoll, long long, (const char *string));
105 _GL_CXXALIASWARN (atoll);
106 #elif defined GNULIB_POSIXCHECK
108 # if HAVE_RAW_DECL_ATOLL
109 _GL_WARN_ON_USE (atoll, "atoll is unportable - "
110 "use gnulib module atoll for portability");
114 #if @GNULIB_CALLOC_POSIX@
115 # if !@HAVE_CALLOC_POSIX@
116 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
118 # define calloc rpl_calloc
120 _GL_FUNCDECL_RPL (calloc, void *, (size_t nmemb, size_t size));
121 _GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
123 _GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
125 _GL_CXXALIASWARN (calloc);
126 #elif defined GNULIB_POSIXCHECK
128 /* Assume calloc is always declared. */
129 _GL_WARN_ON_USE (calloc, "calloc is not POSIX compliant everywhere - "
130 "use gnulib module calloc-posix for portability");
133 #if @GNULIB_CANONICALIZE_FILE_NAME@
134 # if @REPLACE_CANONICALIZE_FILE_NAME@
135 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
136 # define canonicalize_file_name rpl_canonicalize_file_name
138 _GL_FUNCDECL_RPL (canonicalize_file_name, char *, (const char *name)
139 _GL_ARG_NONNULL ((1)));
140 _GL_CXXALIAS_RPL (canonicalize_file_name, char *, (const char *name));
142 # if !@HAVE_CANONICALIZE_FILE_NAME@
143 _GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name)
144 _GL_ARG_NONNULL ((1)));
146 _GL_CXXALIAS_SYS (canonicalize_file_name, char *, (const char *name));
148 _GL_CXXALIASWARN (canonicalize_file_name);
149 #elif defined GNULIB_POSIXCHECK
150 # undef canonicalize_file_name
151 # if HAVE_RAW_DECL_CANONICALIZE_FILE_NAME
152 _GL_WARN_ON_USE (canonicalize_file_name, "canonicalize_file_name is unportable - "
153 "use gnulib module canonicalize-lgpl for portability");
157 #if @GNULIB_GETLOADAVG@
158 /* Store max(NELEM,3) load average numbers in LOADAVG[].
159 The three numbers are the load average of the last 1 minute, the last 5
160 minutes, and the last 15 minutes, respectively.
161 LOADAVG is an array of NELEM numbers. */
162 # if !@HAVE_DECL_GETLOADAVG@
163 _GL_FUNCDECL_SYS (getloadavg, int, (double loadavg[], int nelem)
164 _GL_ARG_NONNULL ((1)));
166 _GL_CXXALIAS_SYS (getloadavg, int, (double loadavg[], int nelem));
167 _GL_CXXALIASWARN (getloadavg);
168 #elif defined GNULIB_POSIXCHECK
170 # if HAVE_RAW_DECL_GETLOADAVG
171 _GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
172 "use gnulib module getloadavg for portability");
176 #if @GNULIB_GETSUBOPT@
177 /* Assuming *OPTIONP is a comma separated list of elements of the form
178 "token" or "token=value", getsubopt parses the first of these elements.
179 If the first element refers to a "token" that is member of the given
180 NULL-terminated array of tokens:
181 - It replaces the comma with a NUL byte, updates *OPTIONP to point past
182 the first option and the comma, sets *VALUEP to the value of the
183 element (or NULL if it doesn't contain an "=" sign),
184 - It returns the index of the "token" in the given array of tokens.
185 Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
186 For more details see the POSIX:2001 specification.
187 http://www.opengroup.org/susv3xsh/getsubopt.html */
188 # if !@HAVE_GETSUBOPT@
189 _GL_FUNCDECL_SYS (getsubopt, int,
190 (char **optionp, char *const *tokens, char **valuep)
191 _GL_ARG_NONNULL ((1, 2, 3)));
193 _GL_CXXALIAS_SYS (getsubopt, int,
194 (char **optionp, char *const *tokens, char **valuep));
195 _GL_CXXALIASWARN (getsubopt);
196 #elif defined GNULIB_POSIXCHECK
198 # if HAVE_RAW_DECL_GETSUBOPT
199 _GL_WARN_ON_USE (getsubopt, "getsubopt is unportable - "
200 "use gnulib module getsubopt for portability");
204 #if @GNULIB_MALLOC_POSIX@
205 # if !@HAVE_MALLOC_POSIX@
206 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
208 # define malloc rpl_malloc
210 _GL_FUNCDECL_RPL (malloc, void *, (size_t size));
211 _GL_CXXALIAS_RPL (malloc, void *, (size_t size));
213 _GL_CXXALIAS_SYS (malloc, void *, (size_t size));
215 _GL_CXXALIASWARN (malloc);
216 #elif defined GNULIB_POSIXCHECK
218 /* Assume malloc is always declared. */
219 _GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
220 "use gnulib module malloc-posix for portability");
224 /* Create a unique temporary directory from TEMPLATE.
225 The last six characters of TEMPLATE must be "XXXXXX";
226 they are replaced with a string that makes the directory name unique.
227 Returns TEMPLATE, or a null pointer if it cannot get a unique name.
228 The directory is created mode 700. */
230 _GL_FUNCDECL_SYS (mkdtemp, char *, (char * /*template*/) _GL_ARG_NONNULL ((1)));
232 _GL_CXXALIAS_SYS (mkdtemp, char *, (char * /*template*/));
233 _GL_CXXALIASWARN (mkdtemp);
234 #elif defined GNULIB_POSIXCHECK
236 # if HAVE_RAW_DECL_MKDTEMP
237 _GL_WARN_ON_USE (mkdtemp, "mkdtemp is unportable - "
238 "use gnulib module mkdtemp for portability");
242 #if @GNULIB_MKOSTEMP@
243 /* Create a unique temporary file from TEMPLATE.
244 The last six characters of TEMPLATE must be "XXXXXX";
245 they are replaced with a string that makes the file name unique.
246 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
247 and O_TEXT, O_BINARY (defined in "binary-io.h").
248 The file is then created, with the specified flags, ensuring it didn't exist
250 The file is created read-write (mask at least 0600 & ~umask), but it may be
251 world-readable and world-writable (mask 0666 & ~umask), depending on the
253 Returns the open file descriptor if successful, otherwise -1 and errno
255 # if !@HAVE_MKOSTEMP@
256 _GL_FUNCDECL_SYS (mkostemp, int, (char * /*template*/, int /*flags*/)
257 _GL_ARG_NONNULL ((1)));
259 _GL_CXXALIAS_SYS (mkostemp, int, (char * /*template*/, int /*flags*/));
260 _GL_CXXALIASWARN (mkostemp);
261 #elif defined GNULIB_POSIXCHECK
263 # if HAVE_RAW_DECL_MKOSTEMP
264 _GL_WARN_ON_USE (mkostemp, "mkostemp is unportable - "
265 "use gnulib module mkostemp for portability");
269 #if @GNULIB_MKOSTEMPS@
270 /* Create a unique temporary file from TEMPLATE.
271 The last six characters of TEMPLATE before a suffix of length
272 SUFFIXLEN must be "XXXXXX";
273 they are replaced with a string that makes the file name unique.
274 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
275 and O_TEXT, O_BINARY (defined in "binary-io.h").
276 The file is then created, with the specified flags, ensuring it didn't exist
278 The file is created read-write (mask at least 0600 & ~umask), but it may be
279 world-readable and world-writable (mask 0666 & ~umask), depending on the
281 Returns the open file descriptor if successful, otherwise -1 and errno
283 # if !@HAVE_MKOSTEMPS@
284 _GL_FUNCDECL_SYS (mkostemps, int,
285 (char * /*template*/, int /*suffixlen*/, int /*flags*/)
286 _GL_ARG_NONNULL ((1)));
288 _GL_CXXALIAS_SYS (mkostemps, int,
289 (char * /*template*/, int /*suffixlen*/, int /*flags*/));
290 _GL_CXXALIASWARN (mkostemps);
291 #elif defined GNULIB_POSIXCHECK
293 # if HAVE_RAW_DECL_MKOSTEMPS
294 _GL_WARN_ON_USE (mkostemps, "mkostemps is unportable - "
295 "use gnulib module mkostemps for portability");
300 /* Create a unique temporary file from TEMPLATE.
301 The last six characters of TEMPLATE must be "XXXXXX";
302 they are replaced with a string that makes the file name unique.
303 The file is then created, ensuring it didn't exist before.
304 The file is created read-write (mask at least 0600 & ~umask), but it may be
305 world-readable and world-writable (mask 0666 & ~umask), depending on the
307 Returns the open file descriptor if successful, otherwise -1 and errno
309 # if @REPLACE_MKSTEMP@
310 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
311 # define mkstemp rpl_mkstemp
313 _GL_FUNCDECL_RPL (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
314 _GL_CXXALIAS_RPL (mkstemp, int, (char * /*template*/));
316 _GL_CXXALIAS_SYS (mkstemp, int, (char * /*template*/));
318 _GL_CXXALIASWARN (mkstemp);
319 #elif defined GNULIB_POSIXCHECK
321 # if HAVE_RAW_DECL_MKSTEMP
322 _GL_WARN_ON_USE (mkstemp, "mkstemp is unportable - "
323 "use gnulib module mkstemp for portability");
327 #if @GNULIB_MKSTEMPS@
328 /* Create a unique temporary file from TEMPLATE.
329 The last six characters of TEMPLATE prior to a suffix of length
330 SUFFIXLEN must be "XXXXXX";
331 they are replaced with a string that makes the file name unique.
332 The file is then created, ensuring it didn't exist before.
333 The file is created read-write (mask at least 0600 & ~umask), but it may be
334 world-readable and world-writable (mask 0666 & ~umask), depending on the
336 Returns the open file descriptor if successful, otherwise -1 and errno
338 # if !@HAVE_MKSTEMPS@
339 _GL_FUNCDECL_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/)
340 _GL_ARG_NONNULL ((1)));
342 _GL_CXXALIAS_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/));
343 _GL_CXXALIASWARN (mkstemps);
344 #elif defined GNULIB_POSIXCHECK
346 # if HAVE_RAW_DECL_MKSTEMPS
347 _GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - "
348 "use gnulib module mkstemps for portability");
353 # if @REPLACE_PUTENV@
354 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
356 # define putenv rpl_putenv
358 _GL_FUNCDECL_RPL (putenv, int, (char *string) _GL_ARG_NONNULL ((1)));
359 _GL_CXXALIAS_RPL (putenv, int, (char *string));
361 _GL_CXXALIAS_SYS (putenv, int, (char *string));
363 _GL_CXXALIASWARN (putenv);
367 #if @GNULIB_RANDOM_R@
368 # if !@HAVE_RANDOM_R@
370 # define RAND_MAX 2147483647
375 #if @GNULIB_RANDOM_R@
376 # if !@HAVE_RANDOM_R@
377 _GL_FUNCDECL_SYS (random_r, int, (struct random_data *buf, int32_t *result)
378 _GL_ARG_NONNULL ((1, 2)));
380 _GL_CXXALIAS_SYS (random_r, int, (struct random_data *buf, int32_t *result));
381 _GL_CXXALIASWARN (random_r);
382 #elif defined GNULIB_POSIXCHECK
384 # if HAVE_RAW_DECL_RANDOM_R
385 _GL_WARN_ON_USE (random_r, "random_r is unportable - "
386 "use gnulib module random_r for portability");
390 #if @GNULIB_RANDOM_R@
391 # if !@HAVE_RANDOM_R@
392 _GL_FUNCDECL_SYS (srandom_r, int,
393 (unsigned int seed, struct random_data *rand_state)
394 _GL_ARG_NONNULL ((2)));
396 _GL_CXXALIAS_SYS (srandom_r, int,
397 (unsigned int seed, struct random_data *rand_state));
398 _GL_CXXALIASWARN (srandom_r);
399 #elif defined GNULIB_POSIXCHECK
401 # if HAVE_RAW_DECL_SRANDOM_R
402 _GL_WARN_ON_USE (srandom_r, "srandom_r is unportable - "
403 "use gnulib module random_r for portability");
407 #if @GNULIB_RANDOM_R@
408 # if !@HAVE_RANDOM_R@
409 _GL_FUNCDECL_SYS (initstate_r, int,
410 (unsigned int seed, char *buf, size_t buf_size,
411 struct random_data *rand_state)
412 _GL_ARG_NONNULL ((2, 4)));
414 _GL_CXXALIAS_SYS (initstate_r, int,
415 (unsigned int seed, char *buf, size_t buf_size,
416 struct random_data *rand_state));
417 _GL_CXXALIASWARN (initstate_r);
418 #elif defined GNULIB_POSIXCHECK
420 # if HAVE_RAW_DECL_INITSTATE_R
421 _GL_WARN_ON_USE (initstate_r, "initstate_r is unportable - "
422 "use gnulib module random_r for portability");
426 #if @GNULIB_RANDOM_R@
427 # if !@HAVE_RANDOM_R@
428 _GL_FUNCDECL_SYS (setstate_r, int,
429 (char *arg_state, struct random_data *rand_state)
430 _GL_ARG_NONNULL ((1, 2)));
432 _GL_CXXALIAS_SYS (setstate_r, int,
433 (char *arg_state, struct random_data *rand_state));
434 _GL_CXXALIASWARN (setstate_r);
435 #elif defined GNULIB_POSIXCHECK
437 # if HAVE_RAW_DECL_SETSTATE_R
438 _GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
439 "use gnulib module random_r for portability");
444 #if @GNULIB_REALLOC_POSIX@
445 # if !@HAVE_REALLOC_POSIX@
446 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
448 # define realloc rpl_realloc
450 _GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
451 _GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
453 _GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
455 _GL_CXXALIASWARN (realloc);
456 #elif defined GNULIB_POSIXCHECK
458 /* Assume realloc is always declared. */
459 _GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
460 "use gnulib module realloc-posix for portability");
463 #if @GNULIB_REALPATH@
464 # if @REPLACE_REALPATH@
465 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
466 # define realpath rpl_realpath
468 _GL_FUNCDECL_RPL (realpath, char *, (const char *name, char *resolved)
469 _GL_ARG_NONNULL ((1)));
470 _GL_CXXALIAS_RPL (realpath, char *, (const char *name, char *resolved));
472 # if !@HAVE_REALPATH@
473 _GL_FUNCDECL_SYS (realpath, char *, (const char *name, char *resolved)
474 _GL_ARG_NONNULL ((1)));
476 _GL_CXXALIAS_SYS (realpath, char *, (const char *name, char *resolved));
478 _GL_CXXALIASWARN (realpath);
479 #elif defined GNULIB_POSIXCHECK
481 # if HAVE_RAW_DECL_REALPATH
482 _GL_WARN_ON_USE (realpath, "realpath is unportable - use gnulib module "
483 "canonicalize or canonicalize-lgpl for portability");
488 /* Test a user response to a question.
489 Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear. */
491 _GL_FUNCDECL_SYS (rpmatch, int, (const char *response) _GL_ARG_NONNULL ((1)));
493 _GL_CXXALIAS_SYS (rpmatch, int, (const char *response));
494 _GL_CXXALIASWARN (rpmatch);
495 #elif defined GNULIB_POSIXCHECK
497 # if HAVE_RAW_DECL_RPMATCH
498 _GL_WARN_ON_USE (rpmatch, "rpmatch is unportable - "
499 "use gnulib module rpmatch for portability");
504 /* Set NAME to VALUE in the environment.
505 If REPLACE is nonzero, overwrite an existing value. */
506 # if @REPLACE_SETENV@
507 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
509 # define setenv rpl_setenv
511 _GL_FUNCDECL_RPL (setenv, int,
512 (const char *name, const char *value, int replace)
513 _GL_ARG_NONNULL ((1)));
514 _GL_CXXALIAS_RPL (setenv, int,
515 (const char *name, const char *value, int replace));
518 _GL_FUNCDECL_SYS (setenv, int,
519 (const char *name, const char *value, int replace)
520 _GL_ARG_NONNULL ((1)));
522 _GL_CXXALIAS_SYS (setenv, int,
523 (const char *name, const char *value, int replace));
525 _GL_CXXALIASWARN (setenv);
526 #elif defined GNULIB_POSIXCHECK
528 # if HAVE_RAW_DECL_SETENV
529 _GL_WARN_ON_USE (setenv, "setenv is unportable - "
530 "use gnulib module setenv for portability");
535 /* Parse a double from STRING, updating ENDP if appropriate. */
536 # if @REPLACE_STRTOD@
537 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
538 # define strtod rpl_strtod
540 _GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
541 _GL_ARG_NONNULL ((1)));
542 _GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
545 _GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
546 _GL_ARG_NONNULL ((1)));
548 _GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
550 _GL_CXXALIASWARN (strtod);
551 #elif defined GNULIB_POSIXCHECK
553 # if HAVE_RAW_DECL_STRTOD
554 _GL_WARN_ON_USE (strtod, "strtod is unportable - "
555 "use gnulib module strtod for portability");
560 /* Parse a signed integer whose textual representation starts at STRING.
561 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
562 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
564 If ENDPTR is not NULL, the address of the first byte after the integer is
566 Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
569 _GL_FUNCDECL_SYS (strtoll, long long,
570 (const char *string, char **endptr, int base)
571 _GL_ARG_NONNULL ((1)));
573 _GL_CXXALIAS_SYS (strtoll, long long,
574 (const char *string, char **endptr, int base));
575 _GL_CXXALIASWARN (strtoll);
576 #elif defined GNULIB_POSIXCHECK
578 # if HAVE_RAW_DECL_STRTOLL
579 _GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
580 "use gnulib module strtoll for portability");
584 #if @GNULIB_STRTOULL@
585 /* Parse an unsigned integer whose textual representation starts at STRING.
586 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
587 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
589 If ENDPTR is not NULL, the address of the first byte after the integer is
591 Upon overflow, the return value is ULLONG_MAX, and errno is set to
593 # if !@HAVE_STRTOULL@
594 _GL_FUNCDECL_SYS (strtoull, unsigned long long,
595 (const char *string, char **endptr, int base)
596 _GL_ARG_NONNULL ((1)));
598 _GL_CXXALIAS_SYS (strtoull, unsigned long long,
599 (const char *string, char **endptr, int base));
600 _GL_CXXALIASWARN (strtoull);
601 #elif defined GNULIB_POSIXCHECK
603 # if HAVE_RAW_DECL_STRTOULL
604 _GL_WARN_ON_USE (strtoull, "strtoull is unportable - "
605 "use gnulib module strtoull for portability");
609 #if @GNULIB_UNSETENV@
610 /* Remove the variable NAME from the environment. */
611 # if @REPLACE_UNSETENV@
612 # if !(defined __cplusplus && defined GNULIB_NAMESPACE)
614 # define unsetenv rpl_unsetenv
616 _GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
617 _GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
619 # if !@HAVE_UNSETENV@
620 _GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
622 _GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
624 _GL_CXXALIASWARN (unsetenv);
625 #elif defined GNULIB_POSIXCHECK
627 # if HAVE_RAW_DECL_UNSETENV
628 _GL_WARN_ON_USE (unsetenv, "unsetenv is unportable - "
629 "use gnulib module unsetenv for portability");
634 #endif /* _GL_STDLIB_H */
635 #endif /* _GL_STDLIB_H */