stdlib.h revision 232971
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 232971 2012-03-14 14:39:07Z 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 C11 functions. 153 */ 154#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 155void * aligned_alloc(size_t, size_t); 156int at_quick_exit(void (*)(void)); 157_Noreturn void 158 quick_exit(int); 159#endif /* __ISO_C_VISIBLE >= 2011 */ 160/* 161 * Extensions made by POSIX relative to C. We don't know yet which edition 162 * of POSIX made these extensions, so assume they've always been there until 163 * research can be done. 164 */ 165#if __POSIX_VISIBLE /* >= ??? */ 166int posix_memalign(void **, size_t, size_t); /* (ADV) */ 167int rand_r(unsigned *); /* (TSF) */ 168char *realpath(const char * __restrict, char * __restrict); 169int setenv(const char *, const char *, int); 170int unsetenv(const char *); 171#endif 172 173#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 174int getsubopt(char **, char *const *, char **); 175#ifndef _MKDTEMP_DECLARED 176char *mkdtemp(char *); 177#define _MKDTEMP_DECLARED 178#endif 179#ifndef _MKSTEMP_DECLARED 180int mkstemp(char *); 181#define _MKSTEMP_DECLARED 182#endif 183#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 184 185/* 186 * The only changes to the XSI namespace in revision 6 were the deletion 187 * of the ttyslot() and valloc() functions, which FreeBSD never declared 188 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 189 * FreeBSD also does not have, and mktemp(), are to be deleted. 190 */ 191#if __XSI_VISIBLE 192/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 193long a64l(const char *); 194double drand48(void); 195/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 196double erand48(unsigned short[3]); 197/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 198/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 199int grantpt(int); 200char *initstate(unsigned long /* XSI requires u_int */, char *, long); 201long jrand48(unsigned short[3]); 202char *l64a(long); 203void lcong48(unsigned short[7]); 204long lrand48(void); 205#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 206char *mktemp(char *); 207#define _MKTEMP_DECLARED 208#endif 209long mrand48(void); 210long nrand48(unsigned short[3]); 211int posix_openpt(int); 212char *ptsname(int); 213int putenv(char *); 214long random(void); 215unsigned short 216 *seed48(unsigned short[3]); 217#ifndef _SETKEY_DECLARED 218int setkey(const char *); 219#define _SETKEY_DECLARED 220#endif 221char *setstate(/* const */ char *); 222void srand48(long); 223void srandom(unsigned long); 224int unlockpt(int); 225#endif /* __XSI_VISIBLE */ 226 227#if __BSD_VISIBLE 228extern const char *_malloc_options; 229extern void (*_malloc_message)(const char *, const char *, const char *, 230 const char *); 231 232/* 233 * The alloca() function can't be implemented in C, and on some 234 * platforms it can't be implemented at all as a callable function. 235 * The GNU C compiler provides a built-in alloca() which we can use; 236 * in all other cases, provide a prototype, mainly to pacify various 237 * incarnations of lint. On platforms where alloca() is not in libc, 238 * programs which use it will fail to link when compiled with non-GNU 239 * compilers. 240 */ 241#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 242#undef alloca /* some GNU bits try to get cute and define this on their own */ 243#define alloca(sz) __builtin_alloca(sz) 244#elif defined(lint) 245void *alloca(size_t); 246#endif 247 248void abort2(const char *, int, void **) __dead2; 249__uint32_t 250 arc4random(void); 251void arc4random_addrandom(unsigned char *, int); 252void arc4random_buf(void *, size_t); 253void arc4random_stir(void); 254__uint32_t 255 arc4random_uniform(__uint32_t); 256char *getbsize(int *, long *); 257 /* getcap(3) functions */ 258char *cgetcap(char *, const char *, int); 259int cgetclose(void); 260int cgetent(char **, char **, const char *); 261int cgetfirst(char **, char **); 262int cgetmatch(const char *, const char *); 263int cgetnext(char **, char **); 264int cgetnum(char *, const char *, long *); 265int cgetset(const char *); 266int cgetstr(char *, const char *, char **); 267int cgetustr(char *, const char *, char **); 268 269int daemon(int, int); 270char *devname(__dev_t, __mode_t); 271char *devname_r(__dev_t, __mode_t, char *, int); 272char *fdevname(int); 273char *fdevname_r(int, char *, int); 274int getloadavg(double [], int); 275const char * 276 getprogname(void); 277 278int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 279int l64a_r(long, char *, int); 280int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 281void qsort_r(void *, size_t, size_t, void *, 282 int (*)(void *, const void *, const void *)); 283int radixsort(const unsigned char **, int, const unsigned char *, 284 unsigned); 285void *reallocf(void *, size_t); 286int rpmatch(const char *); 287void setprogname(const char *); 288int sradixsort(const unsigned char **, int, const unsigned char *, 289 unsigned); 290void sranddev(void); 291void srandomdev(void); 292long long 293 strtonum(const char *, long long, long long, const char **); 294 295/* Deprecated interfaces, to be removed in FreeBSD 6.0. */ 296__int64_t 297 strtoq(const char *, char **, int); 298__uint64_t 299 strtouq(const char *, char **, int); 300 301extern char *suboptarg; /* getsubopt(3) external variable */ 302#endif /* __BSD_VISIBLE */ 303__END_DECLS 304 305#endif /* !_STDLIB_H_ */ 306