stdlib.h revision 69f05d291d848de654c72e5278de8ca06fbf5d2f 
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
108static __inline__ int rand(void) {
109    return (int)lrand48();
110}
111static __inline__ void srand(unsigned int __s) {
112    srand48(__s);
113}
114static __inline__ long random(void)
115{
116    return lrand48();
117}
118static __inline__ void srandom(unsigned int __s)
119{
120    srand48(__s);
121}
122
123/* Basic PTY functions.  These only work if devpts is mounted! */
124
125extern int    unlockpt(int);
126extern char*  ptsname(int);
127extern int    ptsname_r(int, char*, size_t);
128extern int    getpt(void);
129
130static __inline__ int grantpt(int __fd __attribute((unused)))
131{
132  (void)__fd;
133  return 0;     /* devpts does this all for us! */
134}
135
136typedef struct {
137    int  quot;
138    int  rem;
139} div_t;
140
141extern div_t   div(int, int);
142
143typedef struct {
144    long int  quot;
145    long int  rem;
146} ldiv_t;
147
148extern ldiv_t   ldiv(long, long);
149
150typedef struct {
151    long long int  quot;
152    long long int  rem;
153} lldiv_t;
154
155extern lldiv_t   lldiv(long long, long long);
156
157/* BSD compatibility. */
158extern const char* getprogname(void);
159extern void setprogname(const char*);
160
161/* make STLPort happy */
162extern int      mblen(const char *, size_t);
163extern size_t   mbstowcs(wchar_t *, const char *, size_t);
164extern int      mbtowc(wchar_t *, const char *, size_t);
165
166/* Likewise, make libstdc++-v3 happy.  */
167extern int	wctomb(char *, wchar_t);
168extern size_t	wcstombs(char *, const wchar_t *, size_t);
169
170#define MB_CUR_MAX 4U
171
172#if 0 /* MISSING FROM BIONIC */
173extern int on_exit(void (*)(int, void *), void *);
174#endif /* MISSING */
175
176__END_DECLS
177
178#endif /* _STDLIB_H_ */
179