stdlib.h revision 282317
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 282317 2015-05-01 19:14:32Z bapt $ 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 __result_use_check 91 __alloc_size(1) __alloc_size(2); 92div_t div(int, int) __pure2; 93_Noreturn void exit(int); 94void free(void *); 95char *getenv(const char *); 96long labs(long) __pure2; 97ldiv_t ldiv(long, long) __pure2; 98void *malloc(size_t) __malloc_like __result_use_check __alloc_size(1); 99int mblen(const char *, size_t); 100size_t mbstowcs(wchar_t * __restrict , const char * __restrict, size_t); 101int mbtowc(wchar_t * __restrict, const char * __restrict, size_t); 102void qsort(void *, size_t, size_t, 103 int (*)(const void *, const void *)); 104int rand(void); 105void *realloc(void *, size_t) __result_use_check __alloc_size(2); 106void srand(unsigned); 107double strtod(const char * __restrict, char ** __restrict); 108float strtof(const char * __restrict, char ** __restrict); 109long strtol(const char * __restrict, char ** __restrict, int); 110long double 111 strtold(const char * __restrict, char ** __restrict); 112unsigned long 113 strtoul(const char * __restrict, char ** __restrict, int); 114int system(const char *); 115int wctomb(char *, wchar_t); 116size_t wcstombs(char * __restrict, const wchar_t * __restrict, size_t); 117 118/* 119 * Functions added in C99 which we make conditionally available in the 120 * BSD^C89 namespace if the compiler supports `long long'. 121 * The #if test is more complicated than it ought to be because 122 * __BSD_VISIBLE implies __ISO_C_VISIBLE == 1999 *even if* `long long' 123 * is not supported in the compilation environment (which therefore means 124 * that it can't really be ISO C99). 125 * 126 * (The only other extension made by C99 in thie header is _Exit().) 127 */ 128#if __ISO_C_VISIBLE >= 1999 129#ifdef __LONG_LONG_SUPPORTED 130/* LONGLONG */ 131typedef struct { 132 long long quot; 133 long long rem; 134} lldiv_t; 135 136/* LONGLONG */ 137long long 138 atoll(const char *); 139/* LONGLONG */ 140long long 141 llabs(long long) __pure2; 142/* LONGLONG */ 143lldiv_t lldiv(long long, long long) __pure2; 144/* LONGLONG */ 145long long 146 strtoll(const char * __restrict, char ** __restrict, int); 147/* LONGLONG */ 148unsigned long long 149 strtoull(const char * __restrict, char ** __restrict, int); 150#endif /* __LONG_LONG_SUPPORTED */ 151 152_Noreturn void _Exit(int); 153#endif /* __ISO_C_VISIBLE >= 1999 */ 154 155/* 156 * If we're in a mode greater than C99, expose C11 functions. 157 */ 158#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 159void * aligned_alloc(size_t, size_t) __malloc_like __alloc_size(2); 160int at_quick_exit(void (*)(void)); 161_Noreturn void 162 quick_exit(int); 163#endif /* __ISO_C_VISIBLE >= 2011 */ 164/* 165 * Extensions made by POSIX relative to C. 166 */ 167#if __POSIX_VISIBLE >= 199506 || __XSI_VISIBLE 168char *realpath(const char * __restrict, char * __restrict); 169#endif 170#if __POSIX_VISIBLE >= 199506 171int rand_r(unsigned *); /* (TSF) */ 172#endif 173#if __POSIX_VISIBLE >= 200112 174int posix_memalign(void **, size_t, size_t) __nonnull(1) 175 __alloc_size(3); /* (ADV) */ 176int setenv(const char *, const char *, int); 177int unsetenv(const char *); 178#endif 179 180#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE 181int getsubopt(char **, char *const *, char **); 182#ifndef _MKDTEMP_DECLARED 183char *mkdtemp(char *); 184#define _MKDTEMP_DECLARED 185#endif 186#ifndef _MKSTEMP_DECLARED 187int mkstemp(char *); 188#define _MKSTEMP_DECLARED 189#endif 190#endif /* __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE */ 191 192/* 193 * The only changes to the XSI namespace in revision 6 were the deletion 194 * of the ttyslot() and valloc() functions, which FreeBSD never declared 195 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 196 * FreeBSD also does not have, and mktemp(), are to be deleted. 197 */ 198#if __XSI_VISIBLE 199/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 200long a64l(const char *); 201double drand48(void); 202/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 203double erand48(unsigned short[3]); 204/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 205/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 206int grantpt(int); 207char *initstate(unsigned long /* XSI requires u_int */, char *, long); 208long jrand48(unsigned short[3]); 209char *l64a(long); 210void lcong48(unsigned short[7]); 211long lrand48(void); 212#if !defined(_MKTEMP_DECLARED) && (__BSD_VISIBLE || __XSI_VISIBLE <= 600) 213char *mktemp(char *); 214#define _MKTEMP_DECLARED 215#endif 216long mrand48(void); 217long nrand48(unsigned short[3]); 218int posix_openpt(int); 219char *ptsname(int); 220int putenv(char *); 221long random(void); 222unsigned short 223 *seed48(unsigned short[3]); 224#ifndef _SETKEY_DECLARED 225int setkey(const char *); 226#define _SETKEY_DECLARED 227#endif 228char *setstate(/* const */ char *); 229void srand48(long); 230void srandom(unsigned long); 231int unlockpt(int); 232#endif /* __XSI_VISIBLE */ 233 234#if __BSD_VISIBLE 235extern const char *malloc_conf; 236extern void (*malloc_message)(void *, const char *); 237 238/* 239 * The alloca() function can't be implemented in C, and on some 240 * platforms it can't be implemented at all as a callable function. 241 * The GNU C compiler provides a built-in alloca() which we can use; 242 * in all other cases, provide a prototype, mainly to pacify various 243 * incarnations of lint. On platforms where alloca() is not in libc, 244 * programs which use it will fail to link when compiled with non-GNU 245 * compilers. 246 */ 247#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 248#undef alloca /* some GNU bits try to get cute and define this on their own */ 249#define alloca(sz) __builtin_alloca(sz) 250#elif defined(lint) 251void *alloca(size_t); 252#endif 253 254void abort2(const char *, int, void **) __dead2; 255__uint32_t 256 arc4random(void); 257void arc4random_addrandom(unsigned char *, int); 258void arc4random_buf(void *, size_t); 259void arc4random_stir(void); 260__uint32_t 261 arc4random_uniform(__uint32_t); 262#ifdef __BLOCKS__ 263int atexit_b(void (^)(void)); 264void *bsearch_b(const void *, const void *, size_t, 265 size_t, int (^)(const void *, const void *)); 266#endif 267char *getbsize(int *, long *); 268 /* getcap(3) functions */ 269char *cgetcap(char *, const char *, int); 270int cgetclose(void); 271int cgetent(char **, char **, const char *); 272int cgetfirst(char **, char **); 273int cgetmatch(const char *, const char *); 274int cgetnext(char **, char **); 275int cgetnum(char *, const char *, long *); 276int cgetset(const char *); 277int cgetstr(char *, const char *, char **); 278int cgetustr(char *, const char *, char **); 279 280int daemon(int, int); 281char *devname(__dev_t, __mode_t); 282char *devname_r(__dev_t, __mode_t, char *, int); 283char *fdevname(int); 284char *fdevname_r(int, char *, int); 285int getloadavg(double [], int); 286const char * 287 getprogname(void); 288 289int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 290#ifdef __BLOCKS__ 291int heapsort_b(void *, size_t, size_t, int (^)(const void *, const void *)); 292void qsort_b(void *, size_t, size_t, 293 int (^)(const void *, const void *)); 294#endif 295int l64a_r(long, char *, int); 296int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 297#ifdef __BLOCKS__ 298int mergesort_b(void *, size_t, size_t, int (^)(const void *, const void *)); 299#endif 300int mkostemp(char *, int); 301int mkostemps(char *, int, int); 302void qsort_r(void *, size_t, size_t, void *, 303 int (*)(void *, const void *, const void *)); 304int radixsort(const unsigned char **, int, const unsigned char *, 305 unsigned); 306void *reallocarray(void *, size_t, size_t) __result_use_check __alloc_size(2) 307 __alloc_size(3); 308void *reallocf(void *, size_t) __result_use_check __alloc_size(2); 309int rpmatch(const char *); 310void setprogname(const char *); 311int sradixsort(const unsigned char **, int, const unsigned char *, 312 unsigned); 313void sranddev(void); 314void srandomdev(void); 315long long 316 strtonum(const char *, long long, long long, const char **); 317 318/* Deprecated interfaces, to be removed in FreeBSD 6.0. */ 319__int64_t 320 strtoq(const char *, char **, int); 321__uint64_t 322 strtouq(const char *, char **, int); 323 324extern char *suboptarg; /* getsubopt(3) external variable */ 325#endif /* __BSD_VISIBLE */ 326__END_DECLS 327 328#endif /* !_STDLIB_H_ */ 329