stdlib.h revision e61919ad11fc0ca6749ee4d6855bc8b2c316a8f9
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 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 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28#ifndef _STDLIB_H_ 29#define _STDLIB_H_ 30 31#include <sys/cdefs.h> 32 33#include <stddef.h> 34#include <string.h> 35#include <alloca.h> 36#include <strings.h> 37#include <memory.h> 38 39__BEGIN_DECLS 40 41#define EXIT_FAILURE 1 42#define EXIT_SUCCESS 0 43 44extern __noreturn void abort(void); 45extern __noreturn void exit(int); 46extern __noreturn void _Exit(int); 47extern int atexit(void (*)(void)); 48 49#if __ISO_C_VISIBLE >= 2011 || __cplusplus >= 201103L 50int at_quick_exit(void (*)(void)); 51void quick_exit(int) __noreturn; 52#endif 53 54extern char* getenv(const char*); 55extern int putenv(char*); 56extern int setenv(const char*, const char*, int); 57extern int unsetenv(const char*); 58extern int clearenv(void); 59 60extern char* mkdtemp(char*); 61extern char* mktemp(char*) __warnattr("mktemp possibly used unsafely; consider using mkstemp"); 62extern int mkstemp(char*); 63extern int mkstemp64(char*); 64 65extern long strtol(const char *, char **, int); 66extern long long strtoll(const char *, char **, int); 67extern unsigned long strtoul(const char *, char **, int); 68extern unsigned long long strtoull(const char *, char **, int); 69 70extern int posix_memalign(void **memptr, size_t alignment, size_t size); 71 72extern double atof(const char*); 73 74extern double strtod(const char*, char**) __LIBC_ABI_PUBLIC__; 75extern float strtof(const char*, char**) __LIBC_ABI_PUBLIC__; 76extern long double strtold(const char*, char**) __LIBC_ABI_PUBLIC__; 77 78extern int atoi(const char*) __purefunc; 79extern long atol(const char*) __purefunc; 80extern long long atoll(const char*) __purefunc; 81 82extern int abs(int) __pure2; 83extern long labs(long) __pure2; 84extern long long llabs(long long) __pure2; 85 86extern char * realpath(const char *path, char *resolved); 87extern int system(const char * string); 88 89extern void * bsearch(const void *key, const void *base0, 90 size_t nmemb, size_t size, 91 int (*compar)(const void *, const void *)); 92 93extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *)); 94 95extern long jrand48(unsigned short *); 96extern long mrand48(void); 97extern long nrand48(unsigned short *); 98extern long lrand48(void); 99extern unsigned short *seed48(unsigned short*); 100extern double erand48(unsigned short xsubi[3]); 101extern double drand48(void); 102extern void srand48(long); 103extern unsigned int arc4random(void); 104extern void arc4random_stir(void); 105extern void arc4random_addrandom(unsigned char *, int); 106 107#define RAND_MAX 0x7fffffff 108 109/* Work around x86/x86-64 libvpx build breakage caused by postproc_x86.c. */ 110#if (defined(__i386__) || defined(__x86_64__)) && defined(rand) 111#undef rand 112#define __rand lrand48 113#endif 114 115int rand(void); 116int rand_r(unsigned int*); 117void srand(unsigned int); 118 119char* initstate(unsigned int, char*, size_t); 120long random(void); 121char* setstate(char*); 122void srandom(unsigned int); 123 124/* Basic PTY functions. These only work if devpts is mounted! */ 125 126extern int unlockpt(int); 127extern char* ptsname(int); 128extern int ptsname_r(int, char*, size_t); 129extern int getpt(void); 130 131static __inline__ int grantpt(int __fd __attribute((unused))) 132{ 133 (void)__fd; 134 return 0; /* devpts does this all for us! */ 135} 136 137typedef struct { 138 int quot; 139 int rem; 140} div_t; 141 142extern div_t div(int, int) __pure2; 143 144typedef struct { 145 long int quot; 146 long int rem; 147} ldiv_t; 148 149extern ldiv_t ldiv(long, long) __pure2; 150 151typedef struct { 152 long long int quot; 153 long long int rem; 154} lldiv_t; 155 156extern lldiv_t lldiv(long long, long long) __pure2; 157 158/* BSD compatibility. */ 159extern const char* getprogname(void); 160extern void setprogname(const char*); 161 162/* make STLPort happy */ 163extern int mblen(const char *, size_t); 164extern size_t mbstowcs(wchar_t *, const char *, size_t); 165extern int mbtowc(wchar_t *, const char *, size_t); 166 167/* Likewise, make libstdc++-v3 happy. */ 168extern int wctomb(char *, wchar_t); 169extern size_t wcstombs(char *, const wchar_t *, size_t); 170 171#define MB_CUR_MAX 4U 172 173#if 0 /* MISSING FROM BIONIC */ 174extern int on_exit(void (*)(int, void *), void *); 175#endif /* MISSING */ 176 177__END_DECLS 178 179#endif /* _STDLIB_H_ */ 180