stdlib.h revision 228322
1/*- 2 * Copyright (c) 1990, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)stdlib.h 8.5 (Berkeley) 5/19/95 30 * $FreeBSD: head/include/stdlib.h 228322 2011-12-07 15:25:48Z theraven $ 31 */ 32 33#ifndef _STDLIB_H_ 34#define _STDLIB_H_ 35 36#include <sys/cdefs.h> 37#include <sys/_null.h> 38#include <sys/_types.h> 39 40#if __BSD_VISIBLE 41#ifndef _RUNE_T_DECLARED 42typedef __rune_t rune_t; 43#define _RUNE_T_DECLARED 44#endif 45#endif 46 47#ifndef _SIZE_T_DECLARED 48typedef __size_t size_t; 49#define _SIZE_T_DECLARED 50#endif 51 52#ifndef __cplusplus 53#ifndef _WCHAR_T_DECLARED 54typedef __wchar_t wchar_t; 55#define _WCHAR_T_DECLARED 56#endif 57#endif 58 59typedef struct { 60 int quot; /* quotient */ 61 int rem; /* remainder */ 62} div_t; 63 64typedef struct { 65 long quot; 66 long rem; 67} ldiv_t; 68 69#define EXIT_FAILURE 1 70#define EXIT_SUCCESS 0 71 72#define RAND_MAX 0x7fffffff 73 74__BEGIN_DECLS 75extern int __mb_cur_max; 76extern int ___mb_cur_max(void); 77#define MB_CUR_MAX (___mb_cur_max()) 78 79__noreturn void abort(void); 80int abs(int) __pure2; 81int atexit(void (*)(void)); 82double atof(const char *); 83int atoi(const char *); 84long atol(const char *); 85void *bsearch(const void *, const void *, size_t, 86 size_t, int (*)(const void *, const void *)); 87void *calloc(size_t, size_t) __malloc_like; 88div_t div(int, int) __pure2; 89__noreturn void exit(int); 90void free(void *); 91char *getenv(const char *); 92long labs(long) __pure2; 93ldiv_t ldiv(long, long) __pure2; 94void *malloc(size_t) __malloc_like; 95int mblen(const char *, size_t); 96size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 97int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 98void qsort(void *, size_t, size_t, 99 int (*)(const void *, const void *)); 100int rand(void); 101void *realloc(void *, size_t); 102void srand(unsigned); 103double strtod(const char * __restrict, char ** __restrict); 104float strtof(const char * __restrict, char ** __restrict); 105long strtol(const char * __restrict, char ** __restrict, int); 106long double 107 strtold(const char * __restrict, char ** __restrict); 108unsigned long 109 strtoul(const char * __restrict, char ** __restrict, int); 110int system(const char *); 111int wctomb(char *, wchar_t); 112size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 113 114/* 115 * Functions added in C99 which we make conditionally available in the 116 * BSD^C89 namespace if the compiler supports `long long'. 117 * The #if test is more complicated than it ought to be because 118 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 119 * is not supported in the compilation environment (which therefore means 120 * that it can't really be ISO C99). 121 * 122 * (The only other extension made by C99 in thie header is _Exit().) 123 */ 124#if __ISO_C_VISIBLE >= 1999 125#ifdef __LONG_LONG_SUPPORTED 126/* LONGLONG */ 127typedef struct { 128 long long quot; 129 long long rem; 130} lldiv_t; 131 132/* LONGLONG */ 133long long 134 atoll(const char *); 135/* LONGLONG */ 136long long 137 llabs(long long) __pure2; 138/* LONGLONG */ 139lldiv_t lldiv(long long, long long) __pure2; 140/* LONGLONG */ 141long long 142 strtoll(const char * __restrict, char ** __restrict, int); 143/* LONGLONG */ 144unsigned long long 145 strtoull(const char * __restrict, char ** __restrict, int); 146#endif /* __LONG_LONG_SUPPORTED */ 147 148__noreturn void _Exit(int); 149#endif /* __ISO_C_VISIBLE >= 1999 */ 150 151/* 152 * If we're in a mode greater than C99, expose C1x functions. 153 */ 154#if __ISO_C_VISIBLE > 1999 155__noreturn void quick_exit(int) 156int 157at_quick_exit(void (*func)(void)); 158#endif /* __ISO_C_VISIBLE > 1999 */ 159/* 160 * Extensions made by POSIX relative to C. We don't know yet which edition 161 * of POSIX made these extensions, so assume they've always been there until 162 * research can be done. 163 */ 164#if __POSIX_VISIBLE /* >= ??? */ 165int posix_memalign(void **, size_t, size_t); /* (ADV) */ 166int rand_r(unsigned *); /* (TSF) */ 167char *realpath(const char * __restrict, char * __restrict); 168int setenv(const char *, const char *, int); 169int unsetenv(const char *); 170#endif 171 172#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 173int getsubopt(char **, char *const *, char **); 174#ifndef _MKDTEMP_DECLARED 175char *mkdtemp(char *); 176#define _MKDTEMP_DECLARED 177#endif 178#ifndef _MKSTEMP_DECLARED 179int mkstemp(char *); 180#define _MKSTEMP_DECLARED 181#endif 182#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 183 184/* 185 * The only changes to the XSI namespace in revision 6 were the deletion 186 * of the ttyslot() and valloc() functions, which FreeBSD never declared 187 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 188 * FreeBSD also does not have, and mktemp(), are to be deleted. 189 */ 190#if __XSI_VISIBLE 191/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 192long a64l(const char *); 193double drand48(void); 194/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 195double erand48(unsigned short[3]); 196/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 197/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 198int grantpt(int); 199char *initstate(unsigned long /* XSI requires u_int */, char *, long); 200long jrand48(unsigned short[3]); 201char *l64a(long); 202void lcong48(unsigned short[7]); 203long lrand48(void); 204#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 205char *mktemp(char *); 206#define _MKTEMP_DECLARED 207#endif 208long mrand48(void); 209long nrand48(unsigned short[3]); 210int posix_openpt(int); 211char *ptsname(int); 212int putenv(char *); 213long random(void); 214unsigned short 215 *seed48(unsigned short[3]); 216#ifndef _SETKEY_DECLARED 217int setkey(const char *); 218#define _SETKEY_DECLARED 219#endif 220char *setstate(/* const */ char *); 221void srand48(long); 222void srandom(unsigned long); 223int unlockpt(int); 224#endif /* __XSI_VISIBLE */ 225 226#if __BSD_VISIBLE 227extern const char *_malloc_options; 228extern void (*_malloc_message)(const char *, const char *, const char *, 229 const char *); 230 231/* 232 * The alloca() function can't be implemented in C, and on some 233 * platforms it can't be implemented at all as a callable function. 234 * The GNU C compiler provides a built-in alloca() which we can use; 235 * in all other cases, provide a prototype, mainly to pacify various 236 * incarnations of lint. On platforms where alloca() is not in libc, 237 * programs which use it will fail to link when compiled with non-GNU 238 * compilers. 239 */ 240#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 241#undef alloca /* some GNU bits try to get cute and define this on their own */ 242#define alloca(sz) __builtin_alloca(sz) 243#elif defined(lint) 244void *alloca(size_t); 245#endif 246 247void abort2(const char *, int, void **) __dead2; 248__uint32_t 249 arc4random(void); 250void arc4random_addrandom(unsigned char *, int); 251void arc4random_buf(void *, size_t); 252void arc4random_stir(void); 253__uint32_t 254 arc4random_uniform(__uint32_t); 255char *getbsize(int *, long *); 256 /* getcap(3) functions */ 257char *cgetcap(char *, const char *, int); 258int cgetclose(void); 259int cgetent(char **, char **, const char *); 260int cgetfirst(char **, char **); 261int cgetmatch(const char *, const char *); 262int cgetnext(char **, char **); 263int cgetnum(char *, const char *, long *); 264int cgetset(const char *); 265int cgetstr(char *, const char *, char **); 266int cgetustr(char *, const char *, char **); 267 268int daemon(int, int); 269char *devname(__dev_t, __mode_t); 270char *devname_r(__dev_t, __mode_t, char *, int); 271char *fdevname(int); 272char *fdevname_r(int, char *, int); 273int getloadavg(double [], int); 274__const char * 275 getprogname(void); 276 277int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 278int l64a_r(long, char *, int); 279int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 280void qsort_r(void *, size_t, size_t, void *, 281 int (*)(void *, const void *, const void *)); 282int radixsort(const unsigned char **, int, const unsigned char *, 283 unsigned); 284void *reallocf(void *, size_t); 285int rpmatch(const char *); 286void setprogname(const char *); 287int sradixsort(const unsigned char **, int, const unsigned char *, 288 unsigned); 289void sranddev(void); 290void srandomdev(void); 291long long 292 strtonum(const char *, long long, long long, const char **); 293 294/* Deprecated interfaces, to be removed in FreeBSD 6.0. */ 295__int64_t 296 strtoq(const char *, char **, int); 297__uint64_t 298 strtouq(const char *, char **, int); 299 300extern char *suboptarg; /* getsubopt(3) external variable */ 301#endif /* __BSD_VISIBLE */ 302__END_DECLS 303 304#endif /* !_STDLIB_H_ */ 305