stdlib.h revision 254151
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 254151 2013-08-09 17:24:23Z jilles $ 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 0x7ffffffd 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) __malloc_like; 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. 165 */ 166#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 167char *realpath(const char * __restrict, char * __restrict); 168#endif 169#if __POSIX_VISIBLE >= 199506 170int rand_r(unsigned *); /* (TSF) */ 171#endif 172#if __POSIX_VISIBLE >= 200112 173int posix_memalign(void **, size_t, size_t); /* (ADV) */ 174int setenv(const char *, const char *, int); 175int unsetenv(const char *); 176#endif 177 178#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 179int getsubopt(char **, char *const *, char **); 180#ifndef _MKDTEMP_DECLARED 181char *mkdtemp(char *); 182#define _MKDTEMP_DECLARED 183#endif 184#ifndef _MKSTEMP_DECLARED 185int mkstemp(char *); 186#define _MKSTEMP_DECLARED 187#endif 188#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 189 190/* 191 * The only changes to the XSI namespace in revision 6 were the deletion 192 * of the ttyslot() and valloc() functions, which FreeBSD never declared 193 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 194 * FreeBSD also does not have, and mktemp(), are to be deleted. 195 */ 196#if __XSI_VISIBLE 197/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 198long a64l(const char *); 199double drand48(void); 200/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 201double erand48(unsigned short[3]); 202/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 203/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 204int grantpt(int); 205char *initstate(unsigned long /* XSI requires u_int */, char *, long); 206long jrand48(unsigned short[3]); 207char *l64a(long); 208void lcong48(unsigned short[7]); 209long lrand48(void); 210#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 211char *mktemp(char *); 212#define _MKTEMP_DECLARED 213#endif 214long mrand48(void); 215long nrand48(unsigned short[3]); 216int posix_openpt(int); 217char *ptsname(int); 218int putenv(char *); 219long random(void); 220unsigned short 221 *seed48(unsigned short[3]); 222#ifndef _SETKEY_DECLARED 223int setkey(const char *); 224#define _SETKEY_DECLARED 225#endif 226char *setstate(/* const */ char *); 227void srand48(long); 228void srandom(unsigned long); 229int unlockpt(int); 230#endif /* __XSI_VISIBLE */ 231 232#if __BSD_VISIBLE 233extern const char *malloc_conf; 234extern void (*malloc_message)(void *, const char *); 235 236/* 237 * The alloca() function can't be implemented in C, and on some 238 * platforms it can't be implemented at all as a callable function. 239 * The GNU C compiler provides a built-in alloca() which we can use; 240 * in all other cases, provide a prototype, mainly to pacify various 241 * incarnations of lint. On platforms where alloca() is not in libc, 242 * programs which use it will fail to link when compiled with non-GNU 243 * compilers. 244 */ 245#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 246#undef alloca /* some GNU bits try to get cute and define this on their own */ 247#define alloca(sz) __builtin_alloca(sz) 248#elif defined(lint) 249void *alloca(size_t); 250#endif 251 252void abort2(const char *, int, void **) __dead2; 253__uint32_t 254 arc4random(void); 255void arc4random_addrandom(unsigned char *, int); 256void arc4random_buf(void *, size_t); 257void arc4random_stir(void); 258__uint32_t 259 arc4random_uniform(__uint32_t); 260char *getbsize(int *, long *); 261 /* getcap(3) functions */ 262char *cgetcap(char *, const char *, int); 263int cgetclose(void); 264int cgetent(char **, char **, const char *); 265int cgetfirst(char **, char **); 266int cgetmatch(const char *, const char *); 267int cgetnext(char **, char **); 268int cgetnum(char *, const char *, long *); 269int cgetset(const char *); 270int cgetstr(char *, const char *, char **); 271int cgetustr(char *, const char *, char **); 272 273int daemon(int, int); 274char *devname(__dev_t, __mode_t); 275char *devname_r(__dev_t, __mode_t, char *, int); 276char *fdevname(int); 277char *fdevname_r(int, char *, int); 278int getloadavg(double [], int); 279const char * 280 getprogname(void); 281 282int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 283int l64a_r(long, char *, int); 284int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 285int mkostemp(char *, int); 286int mkostemps(char *, int, int); 287void qsort_r(void *, size_t, size_t, void *, 288 int (*)(void *, const void *, const void *)); 289int radixsort(const unsigned char **, int, const unsigned char *, 290 unsigned); 291void *reallocf(void *, size_t); 292int rpmatch(const char *); 293void setprogname(const char *); 294int sradixsort(const unsigned char **, int, const unsigned char *, 295 unsigned); 296void sranddev(void); 297void srandomdev(void); 298long long 299 strtonum(const char *, long long, long long, const char **); 300 301/* Deprecated interfaces, to be removed in FreeBSD 6.0. */ 302__int64_t 303 strtoq(const char *, char **, int); 304__uint64_t 305 strtouq(const char *, char **, int); 306 307extern char *suboptarg; /* getsubopt(3) external variable */ 308#endif /* __BSD_VISIBLE */ 309__END_DECLS 310 311#endif /* !_STDLIB_H_ */ 312