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Update from gnulib.
[bpt/emacs.git] / lib / stdlib.in.h
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1f5d53eb
PE		 1/* A GNU-like <stdlib.h>.
2
3 Copyright (C) 1995, 2001-2004, 2006-2011 Free Software Foundation, Inc.
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
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) 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
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18#if __GNUC__ >= 3
19@PRAGMA_SYSTEM_HEADER@
20#endif
21@PRAGMA_COLUMNS@
22
23#if defined __need_malloc_and_calloc
24/* Special invocation convention inside glibc header files. */
25
26#@INCLUDE_NEXT@ @NEXT_STDLIB_H@
27
28#else
29/* Normal invocation convention. */
30
31#ifndef _GL_STDLIB_H
32
33/* The include_next requires a split double-inclusion guard. */
34#@INCLUDE_NEXT@ @NEXT_STDLIB_H@
35
36#ifndef _GL_STDLIB_H
37#define _GL_STDLIB_H
38
39/* NetBSD 5.0 mis-defines NULL. */
40#include <stddef.h>
41
42/* MirBSD 10 defines WEXITSTATUS in <sys/wait.h>, not in <stdlib.h>. */
43#if @GNULIB_SYSTEM_POSIX@ && !defined WEXITSTATUS
44# include <sys/wait.h>
45#endif
46
47/* Solaris declares getloadavg() in <sys/loadavg.h>. */
48#if (@GNULIB_GETLOADAVG@ || defined GNULIB_POSIXCHECK) && @HAVE_SYS_LOADAVG_H@
49# include <sys/loadavg.h>
50#endif
51
52#if @GNULIB_RANDOM_R@
53
54/* OSF/1 5.1 declares 'struct random_data' in <random.h>, which is included
55 from <stdlib.h> if _REENTRANT is defined. Include it whenever we need
56 'struct random_data'. */
57# if @HAVE_RANDOM_H@
58# include <random.h>
59# endif
60
61# if !@HAVE_STRUCT_RANDOM_DATA@ || !@HAVE_RANDOM_R@
62# include <stdint.h>
63# endif
64
65# if !@HAVE_STRUCT_RANDOM_DATA@
66/* Define 'struct random_data'.
67 But allow multiple gnulib generated <stdlib.h> replacements to coexist. */
68# if !GNULIB_defined_struct_random_data
69struct random_data
70{
71 int32_t *fptr; /* Front pointer. */
72 int32_t *rptr; /* Rear pointer. */
73 int32_t *state; /* Array of state values. */
74 int rand_type; /* Type of random number generator. */
75 int rand_deg; /* Degree of random number generator. */
76 int rand_sep; /* Distance between front and rear. */
77 int32_t *end_ptr; /* Pointer behind state table. */
78};
79# define GNULIB_defined_struct_random_data 1
80# endif
81# endif
82#endif
83
84#if (@GNULIB_MKSTEMP@ || @GNULIB_GETSUBOPT@ || defined GNULIB_POSIXCHECK) && ! defined __GLIBC__ && !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
85/* On MacOS X 10.3, only <unistd.h> declares mkstemp. */
86/* On Cygwin 1.7.1, only <unistd.h> declares getsubopt. */
87/* But avoid namespace pollution on glibc systems and native Windows. */
88# include <unistd.h>
89#endif
90
91#if 3 <= __GNUC__ || __GNUC__ == 2 && 8 <= __GNUC_MINOR__
92# define _GL_ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
93#else
94# define _GL_ATTRIBUTE_NORETURN
95#endif
96
97/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
98
99/* The definition of _GL_ARG_NONNULL is copied here. */
100
101/* The definition of _GL_WARN_ON_USE is copied here. */
102
103
104/* Some systems do not define EXIT_*, despite otherwise supporting C89. */
105#ifndef EXIT_SUCCESS
106# define EXIT_SUCCESS 0
107#endif
108/* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
109 with proper operation of xargs. */
110#ifndef EXIT_FAILURE
111# define EXIT_FAILURE 1
112#elif EXIT_FAILURE != 1
113# undef EXIT_FAILURE
114# define EXIT_FAILURE 1
115#endif
116
117
118#if @GNULIB__EXIT@
119/* Terminate the current process with the given return code, without running
120 the 'atexit' handlers. */
121# if !@HAVE__EXIT@
122_GL_FUNCDECL_SYS (_Exit, void, (int status) _GL_ATTRIBUTE_NORETURN);
123# endif
124_GL_CXXALIAS_SYS (_Exit, void, (int status));
125_GL_CXXALIASWARN (_Exit);
126#elif defined GNULIB_POSIXCHECK
127# undef _Exit
128# if HAVE_RAW_DECL__EXIT
129_GL_WARN_ON_USE (_Exit, "_Exit is unportable - "
130 "use gnulib module _Exit for portability");
131# endif
132#endif
133
134
135#if @GNULIB_ATOLL@
136/* Parse a signed decimal integer.
137 Returns the value of the integer. Errors are not detected. */
138# if !@HAVE_ATOLL@
139_GL_FUNCDECL_SYS (atoll, long long, (const char *string) _GL_ARG_NONNULL ((1)));
140# endif
141_GL_CXXALIAS_SYS (atoll, long long, (const char *string));
142_GL_CXXALIASWARN (atoll);
143#elif defined GNULIB_POSIXCHECK
144# undef atoll
145# if HAVE_RAW_DECL_ATOLL
146_GL_WARN_ON_USE (atoll, "atoll is unportable - "
147 "use gnulib module atoll for portability");
148# endif
149#endif
150
151#if @GNULIB_CALLOC_POSIX@
152# if @REPLACE_CALLOC@
153# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
154# undef calloc
155# define calloc rpl_calloc
156# endif
157_GL_FUNCDECL_RPL (calloc, void *, (size_t nmemb, size_t size));
158_GL_CXXALIAS_RPL (calloc, void *, (size_t nmemb, size_t size));
159# else
160_GL_CXXALIAS_SYS (calloc, void *, (size_t nmemb, size_t size));
161# endif
162_GL_CXXALIASWARN (calloc);
163#elif defined GNULIB_POSIXCHECK
164# undef calloc
165/* Assume calloc is always declared. */
166_GL_WARN_ON_USE (calloc, "calloc is not POSIX compliant everywhere - "
167 "use gnulib module calloc-posix for portability");
168#endif
169
170#if @GNULIB_CANONICALIZE_FILE_NAME@
171# if @REPLACE_CANONICALIZE_FILE_NAME@
172# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
173# define canonicalize_file_name rpl_canonicalize_file_name
174# endif
175_GL_FUNCDECL_RPL (canonicalize_file_name, char *, (const char *name)
176 _GL_ARG_NONNULL ((1)));
177_GL_CXXALIAS_RPL (canonicalize_file_name, char *, (const char *name));
178# else
179# if !@HAVE_CANONICALIZE_FILE_NAME@
180_GL_FUNCDECL_SYS (canonicalize_file_name, char *, (const char *name)
181 _GL_ARG_NONNULL ((1)));
182# endif
183_GL_CXXALIAS_SYS (canonicalize_file_name, char *, (const char *name));
184# endif
185_GL_CXXALIASWARN (canonicalize_file_name);
186#elif defined GNULIB_POSIXCHECK
187# undef canonicalize_file_name
188# if HAVE_RAW_DECL_CANONICALIZE_FILE_NAME
189_GL_WARN_ON_USE (canonicalize_file_name,
190 "canonicalize_file_name is unportable - "
191 "use gnulib module canonicalize-lgpl for portability");
192# endif
193#endif
194
195#if @GNULIB_GETLOADAVG@
196/* Store max(NELEM,3) load average numbers in LOADAVG[].
197 The three numbers are the load average of the last 1 minute, the last 5
198 minutes, and the last 15 minutes, respectively.
199 LOADAVG is an array of NELEM numbers. */
200# if !@HAVE_DECL_GETLOADAVG@
201_GL_FUNCDECL_SYS (getloadavg, int, (double loadavg[], int nelem)
202 _GL_ARG_NONNULL ((1)));
203# endif
204_GL_CXXALIAS_SYS (getloadavg, int, (double loadavg[], int nelem));
205_GL_CXXALIASWARN (getloadavg);
206#elif defined GNULIB_POSIXCHECK
207# undef getloadavg
208# if HAVE_RAW_DECL_GETLOADAVG
209_GL_WARN_ON_USE (getloadavg, "getloadavg is not portable - "
210 "use gnulib module getloadavg for portability");
211# endif
212#endif
213
214#if @GNULIB_GETSUBOPT@
215/* Assuming *OPTIONP is a comma separated list of elements of the form
216 "token" or "token=value", getsubopt parses the first of these elements.
217 If the first element refers to a "token" that is member of the given
218 NULL-terminated array of tokens:
219 - It replaces the comma with a NUL byte, updates *OPTIONP to point past
220 the first option and the comma, sets *VALUEP to the value of the
221 element (or NULL if it doesn't contain an "=" sign),
222 - It returns the index of the "token" in the given array of tokens.
223 Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
224 For more details see the POSIX:2001 specification.
225 http://www.opengroup.org/susv3xsh/getsubopt.html */
226# if !@HAVE_GETSUBOPT@
227_GL_FUNCDECL_SYS (getsubopt, int,
228 (char **optionp, char *const *tokens, char **valuep)
229 _GL_ARG_NONNULL ((1, 2, 3)));
230# endif
231_GL_CXXALIAS_SYS (getsubopt, int,
232 (char **optionp, char *const *tokens, char **valuep));
233_GL_CXXALIASWARN (getsubopt);
234#elif defined GNULIB_POSIXCHECK
235# undef getsubopt
236# if HAVE_RAW_DECL_GETSUBOPT
237_GL_WARN_ON_USE (getsubopt, "getsubopt is unportable - "
238 "use gnulib module getsubopt for portability");
239# endif
240#endif
241
242#if @GNULIB_GRANTPT@
243/* Change the ownership and access permission of the slave side of the
244 pseudo-terminal whose master side is specified by FD. */
245# if !@HAVE_GRANTPT@
246_GL_FUNCDECL_SYS (grantpt, int, (int fd));
247# endif
248_GL_CXXALIAS_SYS (grantpt, int, (int fd));
249_GL_CXXALIASWARN (grantpt);
250#elif defined GNULIB_POSIXCHECK
251# undef grantpt
252# if HAVE_RAW_DECL_GRANTPT
253_GL_WARN_ON_USE (ptsname, "grantpt is not portable - "
254 "use gnulib module grantpt for portability");
255# endif
256#endif
257
7ec98caf
PE		 258/* If _GL_USE_STDLIB_ALLOC is nonzero, the including module does not
259 rely on GNU or POSIX semantics for malloc and realloc (for example,
260 by never specifying a zero size), so it does not need malloc or
261 realloc to be redefined. */
1f5d53eb
PE		 262#if @GNULIB_MALLOC_POSIX@
263# if @REPLACE_MALLOC@
7ec98caf
PE		 264# if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
265 || _GL_USE_STDLIB_ALLOC)
1f5d53eb
PE		 266# undef malloc
267# define malloc rpl_malloc
268# endif
269_GL_FUNCDECL_RPL (malloc, void *, (size_t size));
270_GL_CXXALIAS_RPL (malloc, void *, (size_t size));
271# else
272_GL_CXXALIAS_SYS (malloc, void *, (size_t size));
273# endif
274_GL_CXXALIASWARN (malloc);
7ec98caf 275#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
1f5d53eb
PE		 276# undef malloc
277/* Assume malloc is always declared. */
278_GL_WARN_ON_USE (malloc, "malloc is not POSIX compliant everywhere - "
279 "use gnulib module malloc-posix for portability");
280#endif
281
9411886d
PE		 282/* Convert a multibyte character to a wide character. */
283#if @GNULIB_MBTOWC@
284# if @REPLACE_MBTOWC@
285# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
286# undef mbtowc
287# define mbtowc rpl_mbtowc
288# endif
289_GL_FUNCDECL_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
290_GL_CXXALIAS_RPL (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
291# else
292_GL_CXXALIAS_SYS (mbtowc, int, (wchar_t *pwc, const char *s, size_t n));
293# endif
294_GL_CXXALIASWARN (mbtowc);
295#endif
296
1f5d53eb
PE		 297#if @GNULIB_MKDTEMP@
298/* Create a unique temporary directory from TEMPLATE.
299 The last six characters of TEMPLATE must be "XXXXXX";
300 they are replaced with a string that makes the directory name unique.
301 Returns TEMPLATE, or a null pointer if it cannot get a unique name.
302 The directory is created mode 700. */
303# if !@HAVE_MKDTEMP@
304_GL_FUNCDECL_SYS (mkdtemp, char *, (char * /*template*/) _GL_ARG_NONNULL ((1)));
305# endif
306_GL_CXXALIAS_SYS (mkdtemp, char *, (char * /*template*/));
307_GL_CXXALIASWARN (mkdtemp);
308#elif defined GNULIB_POSIXCHECK
309# undef mkdtemp
310# if HAVE_RAW_DECL_MKDTEMP
311_GL_WARN_ON_USE (mkdtemp, "mkdtemp is unportable - "
312 "use gnulib module mkdtemp for portability");
313# endif
314#endif
315
316#if @GNULIB_MKOSTEMP@
317/* Create a unique temporary file from TEMPLATE.
318 The last six characters of TEMPLATE must be "XXXXXX";
319 they are replaced with a string that makes the file name unique.
320 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
321 and O_TEXT, O_BINARY (defined in "binary-io.h").
322 The file is then created, with the specified flags, ensuring it didn't exist
323 before.
324 The file is created read-write (mask at least 0600 & ~umask), but it may be
325 world-readable and world-writable (mask 0666 & ~umask), depending on the
326 implementation.
327 Returns the open file descriptor if successful, otherwise -1 and errno
328 set. */
329# if !@HAVE_MKOSTEMP@
330_GL_FUNCDECL_SYS (mkostemp, int, (char * /*template*/, int /*flags*/)
331 _GL_ARG_NONNULL ((1)));
332# endif
333_GL_CXXALIAS_SYS (mkostemp, int, (char * /*template*/, int /*flags*/));
334_GL_CXXALIASWARN (mkostemp);
335#elif defined GNULIB_POSIXCHECK
336# undef mkostemp
337# if HAVE_RAW_DECL_MKOSTEMP
338_GL_WARN_ON_USE (mkostemp, "mkostemp is unportable - "
339 "use gnulib module mkostemp for portability");
340# endif
341#endif
342
343#if @GNULIB_MKOSTEMPS@
344/* Create a unique temporary file from TEMPLATE.
345 The last six characters of TEMPLATE before a suffix of length
346 SUFFIXLEN must be "XXXXXX";
347 they are replaced with a string that makes the file name unique.
348 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
349 and O_TEXT, O_BINARY (defined in "binary-io.h").
350 The file is then created, with the specified flags, ensuring it didn't exist
351 before.
352 The file is created read-write (mask at least 0600 & ~umask), but it may be
353 world-readable and world-writable (mask 0666 & ~umask), depending on the
354 implementation.
355 Returns the open file descriptor if successful, otherwise -1 and errno
356 set. */
357# if !@HAVE_MKOSTEMPS@
358_GL_FUNCDECL_SYS (mkostemps, int,
359 (char * /*template*/, int /*suffixlen*/, int /*flags*/)
360 _GL_ARG_NONNULL ((1)));
361# endif
362_GL_CXXALIAS_SYS (mkostemps, int,
363 (char * /*template*/, int /*suffixlen*/, int /*flags*/));
364_GL_CXXALIASWARN (mkostemps);
365#elif defined GNULIB_POSIXCHECK
366# undef mkostemps
367# if HAVE_RAW_DECL_MKOSTEMPS
368_GL_WARN_ON_USE (mkostemps, "mkostemps is unportable - "
369 "use gnulib module mkostemps for portability");
370# endif
371#endif
372
373#if @GNULIB_MKSTEMP@
374/* Create a unique temporary file from TEMPLATE.
375 The last six characters of TEMPLATE must be "XXXXXX";
376 they are replaced with a string that makes the file name unique.
377 The file is then created, ensuring it didn't exist before.
378 The file is created read-write (mask at least 0600 & ~umask), but it may be
379 world-readable and world-writable (mask 0666 & ~umask), depending on the
380 implementation.
381 Returns the open file descriptor if successful, otherwise -1 and errno
382 set. */
383# if @REPLACE_MKSTEMP@
384# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
385# define mkstemp rpl_mkstemp
386# endif
387_GL_FUNCDECL_RPL (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
388_GL_CXXALIAS_RPL (mkstemp, int, (char * /*template*/));
389# else
390# if ! @HAVE_MKSTEMP@
391_GL_FUNCDECL_SYS (mkstemp, int, (char * /*template*/) _GL_ARG_NONNULL ((1)));
392# endif
393_GL_CXXALIAS_SYS (mkstemp, int, (char * /*template*/));
394# endif
395_GL_CXXALIASWARN (mkstemp);
396#elif defined GNULIB_POSIXCHECK
397# undef mkstemp
398# if HAVE_RAW_DECL_MKSTEMP
399_GL_WARN_ON_USE (mkstemp, "mkstemp is unportable - "
400 "use gnulib module mkstemp for portability");
401# endif
402#endif
403
404#if @GNULIB_MKSTEMPS@
405/* Create a unique temporary file from TEMPLATE.
406 The last six characters of TEMPLATE prior to a suffix of length
407 SUFFIXLEN must be "XXXXXX";
408 they are replaced with a string that makes the file name unique.
409 The file is then created, ensuring it didn't exist before.
410 The file is created read-write (mask at least 0600 & ~umask), but it may be
411 world-readable and world-writable (mask 0666 & ~umask), depending on the
412 implementation.
413 Returns the open file descriptor if successful, otherwise -1 and errno
414 set. */
415# if !@HAVE_MKSTEMPS@
416_GL_FUNCDECL_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/)
417 _GL_ARG_NONNULL ((1)));
418# endif
419_GL_CXXALIAS_SYS (mkstemps, int, (char * /*template*/, int /*suffixlen*/));
420_GL_CXXALIASWARN (mkstemps);
421#elif defined GNULIB_POSIXCHECK
422# undef mkstemps
423# if HAVE_RAW_DECL_MKSTEMPS
424_GL_WARN_ON_USE (mkstemps, "mkstemps is unportable - "
425 "use gnulib module mkstemps for portability");
426# endif
427#endif
428
429#if @GNULIB_PTSNAME@
430/* Return the pathname of the pseudo-terminal slave associated with
431 the master FD is open on, or NULL on errors. */
432# if !@HAVE_PTSNAME@
433_GL_FUNCDECL_SYS (ptsname, char *, (int fd));
434# endif
435_GL_CXXALIAS_SYS (ptsname, char *, (int fd));
436_GL_CXXALIASWARN (ptsname);
437#elif defined GNULIB_POSIXCHECK
438# undef ptsname
439# if HAVE_RAW_DECL_PTSNAME
440_GL_WARN_ON_USE (ptsname, "ptsname is not portable - "
441 "use gnulib module ptsname for portability");
442# endif
443#endif
444
445#if @GNULIB_PUTENV@
446# if @REPLACE_PUTENV@
447# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
448# undef putenv
449# define putenv rpl_putenv
450# endif
451_GL_FUNCDECL_RPL (putenv, int, (char *string) _GL_ARG_NONNULL ((1)));
452_GL_CXXALIAS_RPL (putenv, int, (char *string));
453# else
454_GL_CXXALIAS_SYS (putenv, int, (char *string));
455# endif
456_GL_CXXALIASWARN (putenv);
457#endif
458
459
460#if @GNULIB_RANDOM_R@
461# if !@HAVE_RANDOM_R@
462# ifndef RAND_MAX
463# define RAND_MAX 2147483647
464# endif
465# endif
466#endif
467
468#if @GNULIB_RANDOM_R@
469# if !@HAVE_RANDOM_R@
470_GL_FUNCDECL_SYS (random_r, int, (struct random_data *buf, int32_t *result)
471 _GL_ARG_NONNULL ((1, 2)));
472# endif
473_GL_CXXALIAS_SYS (random_r, int, (struct random_data *buf, int32_t *result));
474_GL_CXXALIASWARN (random_r);
475#elif defined GNULIB_POSIXCHECK
476# undef random_r
477# if HAVE_RAW_DECL_RANDOM_R
478_GL_WARN_ON_USE (random_r, "random_r is unportable - "
479 "use gnulib module random_r for portability");
480# endif
481#endif
482
483#if @GNULIB_RANDOM_R@
484# if !@HAVE_RANDOM_R@
485_GL_FUNCDECL_SYS (srandom_r, int,
486 (unsigned int seed, struct random_data *rand_state)
487 _GL_ARG_NONNULL ((2)));
488# endif
489_GL_CXXALIAS_SYS (srandom_r, int,
490 (unsigned int seed, struct random_data *rand_state));
491_GL_CXXALIASWARN (srandom_r);
492#elif defined GNULIB_POSIXCHECK
493# undef srandom_r
494# if HAVE_RAW_DECL_SRANDOM_R
495_GL_WARN_ON_USE (srandom_r, "srandom_r is unportable - "
496 "use gnulib module random_r for portability");
497# endif
498#endif
499
500#if @GNULIB_RANDOM_R@
501# if !@HAVE_RANDOM_R@
502_GL_FUNCDECL_SYS (initstate_r, int,
503 (unsigned int seed, char *buf, size_t buf_size,
504 struct random_data *rand_state)
505 _GL_ARG_NONNULL ((2, 4)));
506# endif
507_GL_CXXALIAS_SYS (initstate_r, int,
508 (unsigned int seed, char *buf, size_t buf_size,
509 struct random_data *rand_state));
510_GL_CXXALIASWARN (initstate_r);
511#elif defined GNULIB_POSIXCHECK
512# undef initstate_r
513# if HAVE_RAW_DECL_INITSTATE_R
514_GL_WARN_ON_USE (initstate_r, "initstate_r is unportable - "
515 "use gnulib module random_r for portability");
516# endif
517#endif
518
519#if @GNULIB_RANDOM_R@
520# if !@HAVE_RANDOM_R@
521_GL_FUNCDECL_SYS (setstate_r, int,
522 (char *arg_state, struct random_data *rand_state)
523 _GL_ARG_NONNULL ((1, 2)));
524# endif
525_GL_CXXALIAS_SYS (setstate_r, int,
526 (char *arg_state, struct random_data *rand_state));
527_GL_CXXALIASWARN (setstate_r);
528#elif defined GNULIB_POSIXCHECK
529# undef setstate_r
530# if HAVE_RAW_DECL_SETSTATE_R
531_GL_WARN_ON_USE (setstate_r, "setstate_r is unportable - "
532 "use gnulib module random_r for portability");
533# endif
534#endif
535
536
537#if @GNULIB_REALLOC_POSIX@
538# if @REPLACE_REALLOC@
7ec98caf
PE		 539# if !((defined __cplusplus && defined GNULIB_NAMESPACE) \
540 || _GL_USE_STDLIB_ALLOC)
1f5d53eb
PE		 541# undef realloc
542# define realloc rpl_realloc
543# endif
544_GL_FUNCDECL_RPL (realloc, void *, (void *ptr, size_t size));
545_GL_CXXALIAS_RPL (realloc, void *, (void *ptr, size_t size));
546# else
547_GL_CXXALIAS_SYS (realloc, void *, (void *ptr, size_t size));
548# endif
549_GL_CXXALIASWARN (realloc);
7ec98caf 550#elif defined GNULIB_POSIXCHECK && !_GL_USE_STDLIB_ALLOC
1f5d53eb
PE		 551# undef realloc
552/* Assume realloc is always declared. */
553_GL_WARN_ON_USE (realloc, "realloc is not POSIX compliant everywhere - "
554 "use gnulib module realloc-posix for portability");
555#endif
556
557#if @GNULIB_REALPATH@
558# if @REPLACE_REALPATH@
559# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
560# define realpath rpl_realpath
561# endif
562_GL_FUNCDECL_RPL (realpath, char *, (const char *name, char *resolved)
563 _GL_ARG_NONNULL ((1)));
564_GL_CXXALIAS_RPL (realpath, char *, (const char *name, char *resolved));
565# else
566# if !@HAVE_REALPATH@
567_GL_FUNCDECL_SYS (realpath, char *, (const char *name, char *resolved)
568 _GL_ARG_NONNULL ((1)));
569# endif
570_GL_CXXALIAS_SYS (realpath, char *, (const char *name, char *resolved));
571# endif
572_GL_CXXALIASWARN (realpath);
573#elif defined GNULIB_POSIXCHECK
574# undef realpath
575# if HAVE_RAW_DECL_REALPATH
576_GL_WARN_ON_USE (realpath, "realpath is unportable - use gnulib module "
577 "canonicalize or canonicalize-lgpl for portability");
578# endif
579#endif
580
581#if @GNULIB_RPMATCH@
582/* Test a user response to a question.
583 Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear. */
584# if !@HAVE_RPMATCH@
585_GL_FUNCDECL_SYS (rpmatch, int, (const char *response) _GL_ARG_NONNULL ((1)));
586# endif
587_GL_CXXALIAS_SYS (rpmatch, int, (const char *response));
588_GL_CXXALIASWARN (rpmatch);
589#elif defined GNULIB_POSIXCHECK
590# undef rpmatch
591# if HAVE_RAW_DECL_RPMATCH
592_GL_WARN_ON_USE (rpmatch, "rpmatch is unportable - "
593 "use gnulib module rpmatch for portability");
594# endif
595#endif
596
597#if @GNULIB_SETENV@
598/* Set NAME to VALUE in the environment.
599 If REPLACE is nonzero, overwrite an existing value. */
600# if @REPLACE_SETENV@
601# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
602# undef setenv
603# define setenv rpl_setenv
604# endif
605_GL_FUNCDECL_RPL (setenv, int,
606 (const char *name, const char *value, int replace)
607 _GL_ARG_NONNULL ((1)));
608_GL_CXXALIAS_RPL (setenv, int,
609 (const char *name, const char *value, int replace));
610# else
611# if !@HAVE_DECL_SETENV@
612_GL_FUNCDECL_SYS (setenv, int,
613 (const char *name, const char *value, int replace)
614 _GL_ARG_NONNULL ((1)));
615# endif
616_GL_CXXALIAS_SYS (setenv, int,
617 (const char *name, const char *value, int replace));
618# endif
619# if !(@REPLACE_SETENV@ && !@HAVE_DECL_SETENV@)
620_GL_CXXALIASWARN (setenv);
621# endif
622#elif defined GNULIB_POSIXCHECK
623# undef setenv
624# if HAVE_RAW_DECL_SETENV
625_GL_WARN_ON_USE (setenv, "setenv is unportable - "
626 "use gnulib module setenv for portability");
627# endif
628#endif
629
630#if @GNULIB_STRTOD@
631 /* Parse a double from STRING, updating ENDP if appropriate. */
632# if @REPLACE_STRTOD@
633# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
634# define strtod rpl_strtod
635# endif
636_GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
637 _GL_ARG_NONNULL ((1)));
638_GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
639# else
640# if !@HAVE_STRTOD@
641_GL_FUNCDECL_SYS (strtod, double, (const char *str, char **endp)
642 _GL_ARG_NONNULL ((1)));
643# endif
644_GL_CXXALIAS_SYS (strtod, double, (const char *str, char **endp));
645# endif
646_GL_CXXALIASWARN (strtod);
647#elif defined GNULIB_POSIXCHECK
648# undef strtod
649# if HAVE_RAW_DECL_STRTOD
650_GL_WARN_ON_USE (strtod, "strtod is unportable - "
651 "use gnulib module strtod for portability");
652# endif
653#endif
654
655#if @GNULIB_STRTOLL@
656/* Parse a signed integer whose textual representation starts at STRING.
657 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
658 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
659 "0x").
660 If ENDPTR is not NULL, the address of the first byte after the integer is
661 stored in *ENDPTR.
662 Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
663 to ERANGE. */
664# if !@HAVE_STRTOLL@
665_GL_FUNCDECL_SYS (strtoll, long long,
666 (const char *string, char **endptr, int base)
667 _GL_ARG_NONNULL ((1)));
668# endif
669_GL_CXXALIAS_SYS (strtoll, long long,
670 (const char *string, char **endptr, int base));
671_GL_CXXALIASWARN (strtoll);
672#elif defined GNULIB_POSIXCHECK
673# undef strtoll
674# if HAVE_RAW_DECL_STRTOLL
675_GL_WARN_ON_USE (strtoll, "strtoll is unportable - "
676 "use gnulib module strtoll for portability");
677# endif
678#endif
679
680#if @GNULIB_STRTOULL@
681/* Parse an unsigned integer whose textual representation starts at STRING.
682 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
683 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
684 "0x").
685 If ENDPTR is not NULL, the address of the first byte after the integer is
686 stored in *ENDPTR.
687 Upon overflow, the return value is ULLONG_MAX, and errno is set to
688 ERANGE. */
689# if !@HAVE_STRTOULL@
690_GL_FUNCDECL_SYS (strtoull, unsigned long long,
691 (const char *string, char **endptr, int base)
692 _GL_ARG_NONNULL ((1)));
693# endif
694_GL_CXXALIAS_SYS (strtoull, unsigned long long,
695 (const char *string, char **endptr, int base));
696_GL_CXXALIASWARN (strtoull);
697#elif defined GNULIB_POSIXCHECK
698# undef strtoull
699# if HAVE_RAW_DECL_STRTOULL
700_GL_WARN_ON_USE (strtoull, "strtoull is unportable - "
701 "use gnulib module strtoull for portability");
702# endif
703#endif
704
705#if @GNULIB_UNLOCKPT@
706/* Unlock the slave side of the pseudo-terminal whose master side is specified
707 by FD, so that it can be opened. */
708# if !@HAVE_UNLOCKPT@
709_GL_FUNCDECL_SYS (unlockpt, int, (int fd));
710# endif
711_GL_CXXALIAS_SYS (unlockpt, int, (int fd));
712_GL_CXXALIASWARN (unlockpt);
713#elif defined GNULIB_POSIXCHECK
714# undef unlockpt
715# if HAVE_RAW_DECL_UNLOCKPT
716_GL_WARN_ON_USE (unlockpt, "unlockpt is not portable - "
717 "use gnulib module unlockpt for portability");
718# endif
719#endif
720
721#if @GNULIB_UNSETENV@
722/* Remove the variable NAME from the environment. */
723# if @REPLACE_UNSETENV@
724# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
725# undef unsetenv
726# define unsetenv rpl_unsetenv
727# endif
728_GL_FUNCDECL_RPL (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
729_GL_CXXALIAS_RPL (unsetenv, int, (const char *name));
730# else
731# if !@HAVE_DECL_UNSETENV@
732_GL_FUNCDECL_SYS (unsetenv, int, (const char *name) _GL_ARG_NONNULL ((1)));
733# endif
734_GL_CXXALIAS_SYS (unsetenv, int, (const char *name));
735# endif
736# if !(@REPLACE_UNSETENV@ && !@HAVE_DECL_UNSETENV@)
737_GL_CXXALIASWARN (unsetenv);
738# endif
739#elif defined GNULIB_POSIXCHECK
740# undef unsetenv
741# if HAVE_RAW_DECL_UNSETENV
742_GL_WARN_ON_USE (unsetenv, "unsetenv is unportable - "
743 "use gnulib module unsetenv for portability");
744# endif
745#endif
746
9411886d
PE		 747/* Convert a wide character to a multibyte character. */
748#if @GNULIB_WCTOMB@
749# if @REPLACE_WCTOMB@
750# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
751# undef wctomb
752# define wctomb rpl_wctomb
753# endif
754_GL_FUNCDECL_RPL (wctomb, int, (char *s, wchar_t wc));
755_GL_CXXALIAS_RPL (wctomb, int, (char *s, wchar_t wc));
756# else
757_GL_CXXALIAS_SYS (wctomb, int, (char *s, wchar_t wc));
758# endif
759_GL_CXXALIASWARN (wctomb);
760#endif
761
1f5d53eb
PE		 762
763#endif /* _GL_STDLIB_H */
764#endif /* _GL_STDLIB_H */
765#endif
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