2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1990, 1993
5 * The Regents of the University of California. All rights reserved.
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8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
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21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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31 * @(#)stdlib.h 8.5 (Berkeley) 5/19/95
38 #include <sys/cdefs.h>
39 #include <sys/_null.h>
40 #include <sys/_types.h>
42 __NULLABILITY_PRAGMA_PUSH
45 #ifndef _RUNE_T_DECLARED
46 typedef __rune_t rune_t;
47 #define _RUNE_T_DECLARED
51 #ifndef _SIZE_T_DECLARED
52 typedef __size_t size_t;
53 #define _SIZE_T_DECLARED
57 #ifndef _WCHAR_T_DECLARED
58 typedef ___wchar_t wchar_t;
59 #define _WCHAR_T_DECLARED
64 int quot; /* quotient */
65 int rem; /* remainder */
73 #define EXIT_FAILURE 1
74 #define EXIT_SUCCESS 0
77 * I.e., INT_MAX; rand(3) returns a signed integer but must produce output in
78 * the range [0, RAND_MAX], so half of the possible output range is unused.
80 #define RAND_MAX 0x7fffffff
84 #include <xlocale/_stdlib.h>
86 extern int __mb_cur_max;
87 extern int ___mb_cur_max(void);
88 #define MB_CUR_MAX ((size_t)___mb_cur_max())
90 _Noreturn void abort(void);
92 int atexit(void (* _Nonnull)(void));
93 double atof(const char *);
94 int atoi(const char *);
95 long atol(const char *);
96 void *bsearch(const void *, const void *, size_t,
97 size_t, int (*)(const void * _Nonnull, const void *));
98 void *calloc(size_t, size_t) __malloc_like __result_use_check
100 div_t div(int, int) __pure2;
101 _Noreturn void exit(int);
103 char *getenv(const char *);
104 long labs(long) __pure2;
105 ldiv_t ldiv(long, long) __pure2;
106 void *malloc(size_t) __malloc_like __result_use_check __alloc_size(1);
107 int mblen(const char *, size_t);
108 size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t);
109 int mbtowc(wchar_t * __restrict, const char * __restrict, size_t);
110 void qsort(void *, size_t, size_t,
111 int (* _Nonnull)(const void *, const void *));
113 void *realloc(void *, size_t) __result_use_check __alloc_size(2);
114 void srand(unsigned);
115 double strtod(const char * __restrict, char ** __restrict);
116 float strtof(const char * __restrict, char ** __restrict);
117 long strtol(const char * __restrict, char ** __restrict, int);
119 strtold(const char * __restrict, char ** __restrict);
121 strtoul(const char * __restrict, char ** __restrict, int);
122 int system(const char *);
123 int wctomb(char *, wchar_t);
124 size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t);
127 * Functions added in C99 which we make conditionally available in the
128 * BSD^C89 namespace if the compiler supports `long long'.
129 * The #if test is more complicated than it ought to be because
130 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long'
131 * is not supported in the compilation environment (which therefore means
132 * that it can't really be ISO C99).
134 * (The only other extension made by C99 in thie header is _Exit().)
136 #if __ISO_C_VISIBLE >= 1999 || defined(__cplusplus)
137 #ifdef __LONG_LONG_SUPPORTED
149 llabs(long long) __pure2;
151 lldiv_t lldiv(long long, long long) __pure2;
154 strtoll(const char * __restrict, char ** __restrict, int);
157 strtoull(const char * __restrict, char ** __restrict, int);
158 #endif /* __LONG_LONG_SUPPORTED */
160 _Noreturn void _Exit(int);
161 #endif /* __ISO_C_VISIBLE >= 1999 */
164 * If we're in a mode greater than C99, expose C11 functions.
166 #if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L
167 void * aligned_alloc(size_t, size_t) __malloc_like __alloc_align(1)
169 int at_quick_exit(void (*)(void));
172 #endif /* __ISO_C_VISIBLE >= 2011 */
174 * Extensions made by POSIX relative to C.
176 #if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE
177 char *realpath(const char * __restrict, char * __restrict);
179 #if __POSIX_VISIBLE >= 199506
180 int rand_r(unsigned *); /* (TSF) */
182 #if __POSIX_VISIBLE >= 200112
183 int posix_memalign(void **, size_t, size_t); /* (ADV) */
184 int setenv(const char *, const char *, int);
185 int unsetenv(const char *);
188 #if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE
189 int getsubopt(char **, char *const *, char **);
190 #ifndef _MKDTEMP_DECLARED
191 char *mkdtemp(char *);
192 #define _MKDTEMP_DECLARED
194 #ifndef _MKSTEMP_DECLARED
196 #define _MKSTEMP_DECLARED
198 #endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */
201 * The only changes to the XSI namespace in revision 6 were the deletion
202 * of the ttyslot() and valloc() functions, which FreeBSD never declared
203 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which
204 * FreeBSD also does not have, and mktemp(), are to be deleted.
207 /* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */
208 long a64l(const char *);
209 double drand48(void);
210 /* char *ecvt(double, int, int * __restrict, int * __restrict); */
211 double erand48(unsigned short[3]);
212 /* char *fcvt(double, int, int * __restrict, int * __restrict); */
213 /* char *gcvt(double, int, int * __restrict, int * __restrict); */
214 char *initstate(unsigned int, char *, size_t);
215 long jrand48(unsigned short[3]);
217 void lcong48(unsigned short[7]);
219 #if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600)
220 char *mktemp(char *);
221 #define _MKTEMP_DECLARED
224 long nrand48(unsigned short[3]);
228 *seed48(unsigned short[3]);
229 char *setstate(/* const */ char *);
231 void srandom(unsigned int);
232 #endif /* __XSI_VISIBLE */
236 int posix_openpt(int);
239 #endif /* __XSI_VISIBLE */
241 /* ptsname_r will be included in POSIX issue 8 */
242 int ptsname_r(int, char *, size_t);
246 extern const char *malloc_conf;
247 extern void (*malloc_message)(void *, const char *);
250 * The alloca() function can't be implemented in C, and on some
251 * platforms it can't be implemented at all as a callable function.
252 * The GNU C compiler provides a built-in alloca() which we can use.
253 * On platforms where alloca() is not in libc, programs which use it
254 * will fail to link when compiled with non-GNU compilers.
257 #undef alloca /* some GNU bits try to get cute and define this on their own */
258 #define alloca(sz) __builtin_alloca(sz)
261 void abort2(const char *, int, void **) __dead2;
264 void arc4random_buf(void *, size_t);
266 arc4random_uniform(__uint32_t);
269 int atexit_b(void (^ _Nonnull)(void));
270 void *bsearch_b(const void *, const void *, size_t,
271 size_t, int (^ _Nonnull)(const void *, const void *));
273 char *getbsize(int *, long *);
274 /* getcap(3) functions */
275 char *cgetcap(char *, const char *, int);
277 int cgetent(char **, char **, const char *);
278 int cgetfirst(char **, char **);
279 int cgetmatch(const char *, const char *);
280 int cgetnext(char **, char **);
281 int cgetnum(char *, const char *, long *);
282 int cgetset(const char *);
283 int cgetstr(char *, const char *, char **);
284 int cgetustr(char *, const char *, char **);
288 int daemon(int, int);
289 int daemonfd(int, int);
290 char *devname(__dev_t, __mode_t);
291 char *devname_r(__dev_t, __mode_t, char *, int);
293 char *fdevname_r(int, char *, int);
294 int getloadavg(double [], int);
298 int heapsort(void *, size_t, size_t,
299 int (* _Nonnull)(const void *, const void *));
301 int heapsort_b(void *, size_t, size_t,
302 int (^ _Nonnull)(const void *, const void *));
303 void qsort_b(void *, size_t, size_t,
304 int (^ _Nonnull)(const void *, const void *));
306 int l64a_r(long, char *, int);
307 int mergesort(void *, size_t, size_t, int (*)(const void *, const void *));
309 int mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *));
311 int mkostemp(char *, int);
312 int mkostemps(char *, int, int);
313 int mkostempsat(int, char *, int, int);
314 void qsort_r(void *, size_t, size_t,
315 int (*)(const void *, const void *, void *), void *);
316 int radixsort(const unsigned char **, int, const unsigned char *,
318 void *reallocarray(void *, size_t, size_t) __result_use_check
320 void *reallocf(void *, size_t) __result_use_check __alloc_size(2);
321 int rpmatch(const char *);
322 void setprogname(const char *);
323 int sradixsort(const unsigned char **, int, const unsigned char *,
325 void srandomdev(void);
327 strtonum(const char *, long long, long long, const char **);
329 /* Deprecated interfaces, to be removed. */
331 strtoq(const char *, char **, int);
333 strtouq(const char *, char **, int);
336 * In FreeBSD 14, the prototype of qsort_r() was modified to comply with
337 * POSIX. The standardized qsort_r()'s order of last two parameters was
338 * changed, and the comparator function is now taking thunk as its last
339 * parameter, and both are different from the ones expected by the historical
340 * FreeBSD qsort_r() interface.
342 * Apply a workaround where we explicitly link against the historical
343 * interface, qsort_r@FBSD_1.0, in case when qsort_r() is called with
344 * the last parameter with a function pointer that exactly matches the
345 * historical FreeBSD qsort_r() comparator signature, so applications
346 * written for the historical interface can continue to work without
349 #if defined(__generic) || defined(__cplusplus)
350 void __qsort_r_compat(void *, size_t, size_t, void *,
351 int (*)(void *, const void *, const void *));
352 __sym_compat(qsort_r, __qsort_r_compat, FBSD_1.0);
354 #if defined(__generic) && !defined(__cplusplus)
355 #define qsort_r(base, nel, width, arg4, arg5) \
356 __generic(arg5, int (*)(void *, const void *, const void *), \
357 __qsort_r_compat, qsort_r)(base, nel, width, arg4, arg5)
358 #elif defined(__cplusplus)
361 static inline void qsort_r(void *base, size_t nmemb, size_t size,
362 void *thunk, int (*compar)(void *, const void *, const void *)) {
363 __qsort_r_compat(base, nmemb, size, thunk, compar);
369 extern char *suboptarg; /* getsubopt(3) external variable */
370 #endif /* __BSD_VISIBLE */
374 #ifndef _RSIZE_T_DEFINED
375 #define _RSIZE_T_DEFINED
376 typedef size_t rsize_t;
379 #ifndef _ERRNO_T_DEFINED
380 #define _ERRNO_T_DEFINED
385 typedef void (*constraint_handler_t)(const char * __restrict,
386 void * __restrict, errno_t);
388 constraint_handler_t set_constraint_handler_s(constraint_handler_t handler);
390 _Noreturn void abort_handler_s(const char * __restrict, void * __restrict,
393 void ignore_handler_s(const char * __restrict, void * __restrict, errno_t);
395 errno_t qsort_s(void *, rsize_t, rsize_t,
396 int (*)(const void *, const void *, void *), void *);
397 #endif /* __EXT1_VISIBLE */
400 __NULLABILITY_PRAGMA_POP
402 #endif /* !_STDLIB_H_ */