1 /* A GNU-like <stdlib.h>.
3 Copyright (C) 1995, 2001-2004, 2006-2009 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@ && @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 @GNULIB_RANDOM_R@ || !@HAVE_STRUCT_RANDOM_DATA@
56 #if !@HAVE_STRUCT_RANDOM_DATA@
59 int32_t *fptr; /* Front pointer. */
60 int32_t *rptr; /* Rear pointer. */
61 int32_t *state; /* Array of state values. */
62 int rand_type; /* Type of random number generator. */
63 int rand_deg; /* Degree of random number generator. */
64 int rand_sep; /* Distance between front and rear. */
65 int32_t *end_ptr; /* Pointer behind state table. */
69 /* The definition of GL_LINK_WARNING is copied here. */
72 /* Some systems do not define EXIT_*, despite otherwise supporting C89. */
74 # define EXIT_SUCCESS 0
76 /* Tandem/NSK and other platforms that define EXIT_FAILURE as -1 interfere
77 with proper operation of xargs. */
79 # define EXIT_FAILURE 1
80 #elif EXIT_FAILURE != 1
82 # define EXIT_FAILURE 1
92 /* Parse a signed decimal integer.
93 Returns the value of the integer. Errors are not detected. */
94 extern long long atoll (const char *string);
96 #elif defined GNULIB_POSIXCHECK
99 (GL_LINK_WARNING ("atoll is unportable - " \
100 "use gnulib module atoll for portability"), \
104 #if @GNULIB_CALLOC_POSIX@
105 # if !@HAVE_CALLOC_POSIX@
107 # define calloc rpl_calloc
108 extern void * calloc (size_t nmemb, size_t size);
110 #elif defined GNULIB_POSIXCHECK
112 # define calloc(n,s) \
113 (GL_LINK_WARNING ("calloc is not POSIX compliant everywhere - " \
114 "use gnulib module calloc-posix for portability"), \
118 #if @GNULIB_CANONICALIZE_FILE_NAME@
119 # if !@HAVE_CANONICALIZE_FILE_NAME@
120 extern char *canonicalize_file_name (const char *name);
122 #elif defined GNULIB_POSIXCHECK
123 # undef canonicalize_file_name
124 # define canonicalize_file_name(n) \
125 (GL_LINK_WARNING ("canonicalize_file_name is unportable - " \
126 "use gnulib module canonicalize-lgpl for portability"), \
127 canonicalize_file_name (n))
130 #if @GNULIB_GETLOADAVG@
131 # if !@HAVE_DECL_GETLOADAVG@
132 /* Store max(NELEM,3) load average numbers in LOADAVG[].
133 The three numbers are the load average of the last 1 minute, the last 5
134 minutes, and the last 15 minutes, respectively.
135 LOADAVG is an array of NELEM numbers. */
136 extern int getloadavg (double loadavg[], int nelem);
138 #elif defined GNULIB_POSIXCHECK
140 # define getloadavg(l,n) \
141 (GL_LINK_WARNING ("getloadavg is not portable - " \
142 "use gnulib module getloadavg for portability"), \
146 #if @GNULIB_GETSUBOPT@
147 /* Assuming *OPTIONP is a comma separated list of elements of the form
148 "token" or "token=value", getsubopt parses the first of these elements.
149 If the first element refers to a "token" that is member of the given
150 NULL-terminated array of tokens:
151 - It replaces the comma with a NUL byte, updates *OPTIONP to point past
152 the first option and the comma, sets *VALUEP to the value of the
153 element (or NULL if it doesn't contain an "=" sign),
154 - It returns the index of the "token" in the given array of tokens.
155 Otherwise it returns -1, and *OPTIONP and *VALUEP are undefined.
156 For more details see the POSIX:2001 specification.
157 http://www.opengroup.org/susv3xsh/getsubopt.html */
158 # if !@HAVE_GETSUBOPT@
159 extern int getsubopt (char **optionp, char *const *tokens, char **valuep);
161 #elif defined GNULIB_POSIXCHECK
163 # define getsubopt(o,t,v) \
164 (GL_LINK_WARNING ("getsubopt is unportable - " \
165 "use gnulib module getsubopt for portability"), \
169 #if @GNULIB_MALLOC_POSIX@
170 # if !@HAVE_MALLOC_POSIX@
172 # define malloc rpl_malloc
173 extern void * malloc (size_t size);
175 #elif defined GNULIB_POSIXCHECK
178 (GL_LINK_WARNING ("malloc is not POSIX compliant everywhere - " \
179 "use gnulib module malloc-posix for portability"), \
185 /* Create a unique temporary directory from TEMPLATE.
186 The last six characters of TEMPLATE must be "XXXXXX";
187 they are replaced with a string that makes the directory name unique.
188 Returns TEMPLATE, or a null pointer if it cannot get a unique name.
189 The directory is created mode 700. */
190 extern char * mkdtemp (char * /*template*/);
192 #elif defined GNULIB_POSIXCHECK
194 # define mkdtemp(t) \
195 (GL_LINK_WARNING ("mkdtemp is unportable - " \
196 "use gnulib module mkdtemp for portability"), \
200 #if @GNULIB_MKOSTEMP@
201 # if !@HAVE_MKOSTEMP@
202 /* Create a unique temporary file from TEMPLATE.
203 The last six characters of TEMPLATE must be "XXXXXX";
204 they are replaced with a string that makes the file name unique.
205 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
206 and O_TEXT, O_BINARY (defined in "binary-io.h").
207 The file is then created, with the specified flags, ensuring it didn't exist
209 The file is created read-write (mask at least 0600 & ~umask), but it may be
210 world-readable and world-writable (mask 0666 & ~umask), depending on the
212 Returns the open file descriptor if successful, otherwise -1 and errno
214 extern int mkostemp (char * /*template*/, int /*flags*/);
216 #elif defined GNULIB_POSIXCHECK
218 # define mkostemp(t,f) \
219 (GL_LINK_WARNING ("mkostemp is unportable - " \
220 "use gnulib module mkostemp for portability"), \
225 # if @REPLACE_MKSTEMP@
226 /* Create a unique temporary file from TEMPLATE.
227 The last six characters of TEMPLATE must be "XXXXXX";
228 they are replaced with a string that makes the file name unique.
229 The file is then created, ensuring it didn't exist before.
230 The file is created read-write (mask at least 0600 & ~umask), but it may be
231 world-readable and world-writable (mask 0666 & ~umask), depending on the
233 Returns the open file descriptor if successful, otherwise -1 and errno
235 # define mkstemp rpl_mkstemp
236 extern int mkstemp (char * /*template*/);
238 /* On MacOS X 10.3, only <unistd.h> declares mkstemp. */
241 #elif defined GNULIB_POSIXCHECK
243 # define mkstemp(t) \
244 (GL_LINK_WARNING ("mkstemp is unportable - " \
245 "use gnulib module mkstemp for portability"), \
250 # if @REPLACE_PUTENV@
252 # define putenv rpl_putenv
253 extern int putenv (char *string);
257 #if @GNULIB_RANDOM_R@
258 # if !@HAVE_RANDOM_R@
261 # define RAND_MAX 2147483647
264 int srandom_r (unsigned int seed, struct random_data *rand_state);
265 int initstate_r (unsigned int seed, char *buf, size_t buf_size,
266 struct random_data *rand_state);
267 int setstate_r (char *arg_state, struct random_data *rand_state);
268 int random_r (struct random_data *buf, int32_t *result);
270 #elif defined GNULIB_POSIXCHECK
272 # define random_r(b,r) \
273 (GL_LINK_WARNING ("random_r is unportable - " \
274 "use gnulib module random_r for portability"), \
277 # define initstate_r(s,b,sz,r) \
278 (GL_LINK_WARNING ("initstate_r is unportable - " \
279 "use gnulib module random_r for portability"), \
280 initstate_r (s,b,sz,r))
282 # define srandom_r(s,r) \
283 (GL_LINK_WARNING ("srandom_r is unportable - " \
284 "use gnulib module random_r for portability"), \
287 # define setstate_r(a,r) \
288 (GL_LINK_WARNING ("setstate_r is unportable - " \
289 "use gnulib module random_r for portability"), \
293 #if @GNULIB_REALLOC_POSIX@
294 # if !@HAVE_REALLOC_POSIX@
296 # define realloc rpl_realloc
297 extern void * realloc (void *ptr, size_t size);
299 #elif defined GNULIB_POSIXCHECK
301 # define realloc(p,s) \
302 (GL_LINK_WARNING ("realloc is not POSIX compliant everywhere - " \
303 "use gnulib module realloc-posix for portability"), \
307 #if @GNULIB_REALPATH@
308 # if @REPLACE_REALPATH@
309 # define realpath rpl_realpath
311 # if !@HAVE_REALPATH@ || @REPLACE_REALPATH@
312 extern char *realpath (const char *name, char *resolved);
314 #elif defined GNULIB_POSIXCHECK
316 # define realpath(n,r) \
317 (GL_LINK_WARNING ("realpath is unportable - use gnulib module " \
318 "canonicalize or canonicalize-lgpl for portability"), \
324 /* Test a user response to a question.
325 Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear. */
326 extern int rpmatch (const char *response);
328 #elif defined GNULIB_POSIXCHECK
330 # define rpmatch(r) \
331 (GL_LINK_WARNING ("rpmatch is unportable - " \
332 "use gnulib module rpmatch for portability"), \
338 /* Set NAME to VALUE in the environment.
339 If REPLACE is nonzero, overwrite an existing value. */
340 extern int setenv (const char *name, const char *value, int replace);
345 # if @REPLACE_STRTOD@
346 # define strtod rpl_strtod
348 # if !@HAVE_STRTOD@ || @REPLACE_STRTOD@
349 /* Parse a double from STRING, updating ENDP if appropriate. */
350 extern double strtod (const char *str, char **endp);
352 #elif defined GNULIB_POSIXCHECK
354 # define strtod(s, e) \
355 (GL_LINK_WARNING ("strtod is unportable - " \
356 "use gnulib module strtod for portability"), \
362 /* Parse a signed integer whose textual representation starts at STRING.
363 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
364 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
366 If ENDPTR is not NULL, the address of the first byte after the integer is
368 Upon overflow, the return value is LLONG_MAX or LLONG_MIN, and errno is set
370 extern long long strtoll (const char *string, char **endptr, int base);
372 #elif defined GNULIB_POSIXCHECK
374 # define strtoll(s,e,b) \
375 (GL_LINK_WARNING ("strtoll is unportable - " \
376 "use gnulib module strtoll for portability"), \
380 #if @GNULIB_STRTOULL@
381 # if !@HAVE_STRTOULL@
382 /* Parse an unsigned integer whose textual representation starts at STRING.
383 The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
384 it may be decimal or octal (with prefix "0") or hexadecimal (with prefix
386 If ENDPTR is not NULL, the address of the first byte after the integer is
388 Upon overflow, the return value is ULLONG_MAX, and errno is set to
390 extern unsigned long long strtoull (const char *string, char **endptr, int base);
392 #elif defined GNULIB_POSIXCHECK
394 # define strtoull(s,e,b) \
395 (GL_LINK_WARNING ("strtoull is unportable - " \
396 "use gnulib module strtoull for portability"), \
400 #if @GNULIB_UNSETENV@
403 /* On some systems, unsetenv() returns void.
404 This is the case for MacOS X 10.3, FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4. */
405 # define unsetenv(name) ((unsetenv)(name), 0)
408 /* Remove the variable NAME from the environment. */
409 extern int unsetenv (const char *name);
417 #endif /* _GL_STDLIB_H */
418 #endif /* _GL_STDLIB_H */