stdlib.h revision 233600
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 233600 2012-03-28 12:11:54Z 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 75#ifdef _XLOCALE_H_ 76#include <xlocale/_stdlib.h> 77#endif 78extern int __mb_cur_max; 79extern int ___mb_cur_max(void); 80#define MB_CUR_MAX (___mb_cur_max()) 81 82_Noreturn void abort(void); 83int abs(int) __pure2; 84int atexit(void (*)(void)); 85double atof(const char *); 86int atoi(const char *); 87long atol(const char *); 88void *bsearch(const void *, const void *, size_t, 89 size_t, int (*)(const void *, const void *)); 90void *calloc(size_t, size_t) __malloc_like; 91div_t div(int, int) __pure2; 92_Noreturn void exit(int); 93void free(void *); 94char *getenv(const char *); 95long labs(long) __pure2; 96ldiv_t ldiv(long, long) __pure2; 97void *malloc(size_t) __malloc_like; 98int mblen(const char *, size_t); 99size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 100int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 101void qsort(void *, size_t, size_t, 102 int (*)(const void *, const void *)); 103int rand(void); 104void *realloc(void *, size_t); 105void srand(unsigned); 106double strtod(const char * __restrict, char ** __restrict); 107float strtof(const char * __restrict, char ** __restrict); 108long strtol(const char * __restrict, char ** __restrict, int); 109long double 110 strtold(const char * __restrict, char ** __restrict); 111unsigned long 112 strtoul(const char * __restrict, char ** __restrict, int); 113int system(const char *); 114int wctomb(char *, wchar_t); 115size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 116 117/* 118 * Functions added in C99 which we make conditionally available in the 119 * BSD^C89 namespace if the compiler supports `long long'. 120 * The #if test is more complicated than it ought to be because 121 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 122 * is not supported in the compilation environment (which therefore means 123 * that it can't really be ISO C99). 124 * 125 * (The only other extension made by C99 in thie header is _Exit().) 126 */ 127#if __ISO_C_VISIBLE >= 1999 128#ifdef __LONG_LONG_SUPPORTED 129/* LONGLONG */ 130typedef struct { 131 long long quot; 132 long long rem; 133} lldiv_t; 134 135/* LONGLONG */ 136long long 137 atoll(const char *); 138/* LONGLONG */ 139long long 140 llabs(long long) __pure2; 141/* LONGLONG */ 142lldiv_t lldiv(long long, long long) __pure2; 143/* LONGLONG */ 144long long 145 strtoll(const char * __restrict, char ** __restrict, int); 146/* LONGLONG */ 147unsigned long long 148 strtoull(const char * __restrict, char ** __restrict, int); 149#endif /* __LONG_LONG_SUPPORTED */ 150 151_Noreturn void _Exit(int); 152#endif /* __ISO_C_VISIBLE >= 1999 */ 153 154/* 155 * If we're in a mode greater than C99, expose C11 functions. 156 */ 157#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 158void * aligned_alloc(size_t, size_t); 159int at_quick_exit(void (*)(void)); 160_Noreturn void 161 quick_exit(int); 162#endif /* __ISO_C_VISIBLE >= 2011 */ 163/* 164 * Extensions made by POSIX relative to C. We don't know yet which edition 165 * of POSIX made these extensions, so assume they've always been there until 166 * research can be done. 167 */ 168#if __POSIX_VISIBLE /* >= ??? */ 169int posix_memalign(void **, size_t, size_t); /* (ADV) */ 170int rand_r(unsigned *); /* (TSF) */ 171char *realpath(const char * __restrict, char * __restrict); 172int setenv(const char *, const char *, int); 173int unsetenv(const char *); 174#endif 175 176#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 177int getsubopt(char **, char *const *, char **); 178#ifndef _MKDTEMP_DECLARED 179char *mkdtemp(char *); 180#define _MKDTEMP_DECLARED 181#endif 182#ifndef _MKSTEMP_DECLARED 183int mkstemp(char *); 184#define _MKSTEMP_DECLARED 185#endif 186#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 187 188/* 189 * The only changes to the XSI namespace in revision 6 were the deletion 190 * of the ttyslot() and valloc() functions, which FreeBSD never declared 191 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 192 * FreeBSD also does not have, and mktemp(), are to be deleted. 193 */ 194#if __XSI_VISIBLE 195/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 196long a64l(const char *); 197double drand48(void); 198/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 199double erand48(unsigned short[3]); 200/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 201/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 202int grantpt(int); 203char *initstate(unsigned long /* XSI requires u_int */, char *, long); 204long jrand48(unsigned short[3]); 205char *l64a(long); 206void lcong48(unsigned short[7]); 207long lrand48(void); 208#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 209char *mktemp(char *); 210#define _MKTEMP_DECLARED 211#endif 212long mrand48(void); 213long nrand48(unsigned short[3]); 214int posix_openpt(int); 215char *ptsname(int); 216int putenv(char *); 217long random(void); 218unsigned short 219 *seed48(unsigned short[3]); 220#ifndef _SETKEY_DECLARED 221int setkey(const char *); 222#define _SETKEY_DECLARED 223#endif 224char *setstate(/* const */ char *); 225void srand48(long); 226void srandom(unsigned long); 227int unlockpt(int); 228#endif /* __XSI_VISIBLE */ 229 230#if __BSD_VISIBLE 231extern const char *_malloc_options; 232extern void (*_malloc_message)(const char *, const char *, const char *, 233 const char *); 234 235/* 236 * The alloca() function can't be implemented in C, and on some 237 * platforms it can't be implemented at all as a callable function. 238 * The GNU C compiler provides a built-in alloca() which we can use; 239 * in all other cases, provide a prototype, mainly to pacify various 240 * incarnations of lint. On platforms where alloca() is not in libc, 241 * programs which use it will fail to link when compiled with non-GNU 242 * compilers. 243 */ 244#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 245#undef alloca /* some GNU bits try to get cute and define this on their own */ 246#define alloca(sz) __builtin_alloca(sz) 247#elif defined(lint) 248void *alloca(size_t); 249#endif 250 251void abort2(const char *, int, void **) __dead2; 252__uint32_t 253 arc4random(void); 254void arc4random_addrandom(unsigned char *, int); 255void arc4random_buf(void *, size_t); 256void arc4random_stir(void); 257__uint32_t 258 arc4random_uniform(__uint32_t); 259char *getbsize(int *, long *); 260 /* getcap(3) functions */ 261char *cgetcap(char *, const char *, int); 262int cgetclose(void); 263int cgetent(char **, char **, const char *); 264int cgetfirst(char **, char **); 265int cgetmatch(const char *, const char *); 266int cgetnext(char **, char **); 267int cgetnum(char *, const char *, long *); 268int cgetset(const char *); 269int cgetstr(char *, const char *, char **); 270int cgetustr(char *, const char *, char **); 271 272int daemon(int, int); 273char *devname(__dev_t, __mode_t); 274char *devname_r(__dev_t, __mode_t, char *, int); 275char *fdevname(int); 276char *fdevname_r(int, char *, int); 277int getloadavg(double [], int); 278const char * 279 getprogname(void); 280 281int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 282int l64a_r(long, char *, int); 283int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 284void qsort_r(void *, size_t, size_t, void *, 285 int (*)(void *, const void *, const void *)); 286int radixsort(const unsigned char **, int, const unsigned char *, 287 unsigned); 288void *reallocf(void *, size_t); 289int rpmatch(const char *); 290void setprogname(const char *); 291int sradixsort(const unsigned char **, int, const unsigned char *, 292 unsigned); 293void sranddev(void); 294void srandomdev(void); 295long long 296 strtonum(const char *, long long, long long, const char **); 297 298/* Deprecated interfaces, to be removed in FreeBSD 6.0. */ 299__int64_t 300 strtoq(const char *, char **, int); 301__uint64_t 302 strtouq(const char *, char **, int); 303 304extern char *suboptarg; /* getsubopt(3) external variable */ 305#endif /* __BSD_VISIBLE */ 306__END_DECLS 307 308#endif /* !_STDLIB_H_ */ 309