stdlib.h revision 123257
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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)stdlib.h 8.5 (Berkeley) 5/19/95 34 * $FreeBSD: head/include/stdlib.h 123257 2003-12-07 21:10:06Z marcel $ 35 */ 36 37#ifndef _STDLIB_H_ 38#define _STDLIB_H_ 39 40#include <sys/cdefs.h> 41#include <sys/_null.h> 42#include <sys/_types.h> 43 44#if __BSD_VISIBLE 45#ifndef _RUNE_T_DECLARED 46typedef __rune_t rune_t; 47#define _RUNE_T_DECLARED 48#endif 49#endif 50 51#ifndef _SIZE_T_DECLARED 52typedef __size_t size_t; 53#define _SIZE_T_DECLARED 54#endif 55 56#ifndef __cplusplus 57#ifndef _WCHAR_T_DECLARED 58typedef __wchar_t wchar_t; 59#define _WCHAR_T_DECLARED 60#endif 61#endif 62 63typedef struct { 64 int quot; /* quotient */ 65 int rem; /* remainder */ 66} div_t; 67 68typedef struct { 69 long quot; 70 long rem; 71} ldiv_t; 72 73#define EXIT_FAILURE 1 74#define EXIT_SUCCESS 0 75 76#define RAND_MAX 0x7fffffff 77 78extern int __mb_cur_max; 79#define MB_CUR_MAX __mb_cur_max 80 81__BEGIN_DECLS 82void abort(void) __dead2; 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); 91div_t div(int, int) __pure2; 92void exit(int) __dead2; 93void free(void *); 94char *getenv(const char *); 95long labs(long) __pure2; 96ldiv_t ldiv(long, long) __pure2; 97void *malloc(size_t); 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 151void _Exit(int) __dead2; 152#endif /* __ISO_C_VISIBLE >= 1999 */ 153 154/* 155 * Extensions made by POSIX relative to C. We don't know yet which edition 156 * of POSIX made these extensions, so assume they've always been there until 157 * research can be done. 158 */ 159#if __POSIX_VISIBLE /* >= ??? */ 160/* int posix_memalign(void **, size_t, size_t); (ADV) */ 161int rand_r(unsigned *); /* (TSF) */ 162int setenv(const char *, const char *, int); 163void unsetenv(const char *); 164#endif 165 166/* 167 * The only changes to the XSI namespace in revision 6 were the deletion 168 * of the ttyslot() and valloc() functions, which FreeBSD never declared 169 * in this header. For revision 7, ecvt(), fcvt(), and gcvt(), which 170 * FreeBSD also does not have, and mktemp(), are to be deleted. 171 */ 172#if __XSI_VISIBLE 173/* XXX XSI requires pollution from <sys/wait.h> here. We'd rather not. */ 174/* long a64l(const char *); */ 175double drand48(void); 176/* char *ecvt(double, int, int * __restrict, int * __restrict); */ 177double erand48(unsigned short[3]); 178/* char *fcvt(double, int, int * __restrict, int * __restrict); */ 179/* char *gcvt(double, int, int * __restrict, int * __restrict); */ 180#ifndef _GETSUBOPT_DECLARED 181int getsubopt(char **, char *const *, char **); 182#define _GETSUBOPT_DECLARED 183#endif 184int grantpt(int); 185char *initstate(unsigned long /* XSI requires u_int */, char *, long); 186long jrand48(unsigned short[3]); 187/* char *l64a(long); */ 188void lcong48(unsigned short[7]); 189long lrand48(void); 190#ifndef _MKSTEMP_DECLARED 191int mkstemp(char *); 192#define _MKSTEMP_DECLARED 193#endif 194#ifndef _MKTEMP_DECLARED 195char *mktemp(char *); 196#define _MKTEMP_DECLARED 197#endif 198long mrand48(void); 199long nrand48(unsigned short[3]); 200int posix_openpt(int); 201char *ptsname(int); 202int putenv(const char *); 203long random(void); 204char *realpath(const char *, char resolved_path[]); 205unsigned short 206 *seed48(unsigned short[3]); 207#ifndef _SETKEY_DECLARED 208int setkey(const char *); 209#define _SETKEY_DECLARED 210#endif 211char *setstate(/* const */ char *); 212void srand48(long); 213void srandom(unsigned long); 214int unlockpt(int); 215#endif /* __XSI_VISIBLE */ 216 217#if __BSD_VISIBLE 218extern const char *_malloc_options; 219extern void (*_malloc_message)(const char *, const char *, const char *, 220 const char *); 221 222/* 223 * The alloca() function can't be implemented in C, and on some 224 * platforms it can't be implemented at all as a callable function. 225 * The GNU C compiler provides a built-in alloca() which we can use; 226 * in all other cases, provide a prototype, mainly to pacify various 227 * incarnations of lint. On platforms where alloca() is not in libc, 228 * programs which use it will fail to link when compiled with non-GNU 229 * compilers. 230 */ 231#if __GNUC__ >= 2 || defined(__INTEL_COMPILER) 232#undef alloca /* some GNU bits try to get cute and define this on their own */ 233#define alloca(sz) __builtin_alloca(sz) 234#elif defined(lint) 235void *alloca(size_t); 236#endif 237 238__uint32_t 239 arc4random(void); 240void arc4random_addrandom(unsigned char *dat, int datlen); 241void arc4random_stir(void); 242char *getbsize(int *, long *); 243 /* getcap(3) functions */ 244char *cgetcap(char *, const char *, int); 245int cgetclose(void); 246int cgetent(char **, char **, const char *); 247int cgetfirst(char **, char **); 248int cgetmatch(const char *, const char *); 249int cgetnext(char **, char **); 250int cgetnum(char *, const char *, long *); 251int cgetset(const char *); 252int cgetstr(char *, const char *, char **); 253int cgetustr(char *, const char *, char **); 254 255int daemon(int, int); 256char *devname(int, int); 257char *devname_r(int, int, char *, int); 258int getloadavg(double [], int); 259__const char * 260 getprogname(void); 261 262int heapsort(void *, size_t, size_t, int (*)(const void *, const void *)); 263int mergesort(void *, size_t, size_t, int (*)(const void *, const void *)); 264void qsort_r(void *, size_t, size_t, void *, 265 int (*)(void *, const void *, const void *)); 266int radixsort(const unsigned char **, int, const unsigned char *, 267 unsigned); 268void *reallocf(void *, size_t); 269void setprogname(const char *); 270int sradixsort(const unsigned char **, int, const unsigned char *, 271 unsigned); 272void sranddev(void); 273void srandomdev(void); 274 275/* Deprecated interfaces, to be removed in FreeBSD 6.0. */ 276__int64_t 277 strtoq(const char *, char **, int); 278__uint64_t 279 strtouq(const char *, char **, int); 280#endif /* __BSD_VISIBLE */ 281__END_DECLS 282 283#endif /* !_STDLIB_H_ */ 284