stdlib.h revision 58d9e280d459225aa8dc4533e883182b08215f7d 
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
49extern char* getenv(const char*);
50extern int putenv(char*);
51extern int setenv(const char*, const char*, int);
52extern int unsetenv(const char*);
53extern int clearenv(void);
54
55extern char* mkdtemp(char*);
56extern char* mktemp(char*) __warnattr("mktemp possibly used unsafely; consider using mkstemp");
57extern int mkstemp(char*);
58extern int mkstemp64(char*);
59
60extern long strtol(const char *, char **, int);
61extern long long strtoll(const char *, char **, int);
62extern unsigned long strtoul(const char *, char **, int);
63extern unsigned long long strtoull(const char *, char **, int);
64
65extern int posix_memalign(void **memptr, size_t alignment, size_t size);
66
67extern double atof(const char*);
68
69extern double strtod(const char*, char**) __LIBC_ABI_PUBLIC__;
70extern float strtof(const char*, char**) __LIBC_ABI_PUBLIC__;
71extern long double strtold(const char*, char**) __LIBC_ABI_PUBLIC__;
72
73extern int atoi(const char*) __purefunc;
74extern long atol(const char*) __purefunc;
75extern long long atoll(const char*) __purefunc;
76
77extern int abs(int) __pure2;
78extern long labs(long) __pure2;
79extern long long llabs(long long) __pure2;
80
81extern char * realpath(const char *path, char *resolved);
82extern int system(const char * string);
83
84extern void * bsearch(const void *key, const void *base0,
85	size_t nmemb, size_t size,
86	int (*compar)(const void *, const void *));
87
88extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *));
89
90extern long jrand48(unsigned short *);
91extern long mrand48(void);
92extern long nrand48(unsigned short *);
93extern long lrand48(void);
94extern unsigned short *seed48(unsigned short*);
95extern double erand48(unsigned short xsubi[3]);
96extern double drand48(void);
97extern void srand48(long);
98extern unsigned int arc4random(void);
99extern void arc4random_stir(void);
100extern void arc4random_addrandom(unsigned char *, int);
101
102#define RAND_MAX 0x7fffffff
103static __inline__ int rand(void) {
104    return (int)lrand48();
105}
106static __inline__ void srand(unsigned int __s) {
107    srand48(__s);
108}
109static __inline__ long random(void)
110{
111    return lrand48();
112}
113static __inline__ void srandom(unsigned int __s)
114{
115    srand48(__s);
116}
117
118/* Basic PTY functions.  These only work if devpts is mounted! */
119
120extern int    unlockpt(int);
121extern char*  ptsname(int);
122extern int    ptsname_r(int, char*, size_t);
123extern int    getpt(void);
124
125static __inline__ int grantpt(int __fd __attribute((unused)))
126{
127  (void)__fd;
128  return 0;     /* devpts does this all for us! */
129}
130
131typedef struct {
132    int  quot;
133    int  rem;
134} div_t;
135
136extern div_t   div(int, int);
137
138typedef struct {
139    long int  quot;
140    long int  rem;
141} ldiv_t;
142
143extern ldiv_t   ldiv(long, long);
144
145typedef struct {
146    long long int  quot;
147    long long int  rem;
148} lldiv_t;
149
150extern lldiv_t   lldiv(long long, long long);
151
152/* BSD compatibility. */
153extern const char* getprogname(void);
154extern void setprogname(const char*);
155
156/* make STLPort happy */
157extern int      mblen(const char *, size_t);
158extern size_t   mbstowcs(wchar_t *, const char *, size_t);
159extern int      mbtowc(wchar_t *, const char *, size_t);
160
161/* Likewise, make libstdc++-v3 happy.  */
162extern int	wctomb(char *, wchar_t);
163extern size_t	wcstombs(char *, const wchar_t *, size_t);
164
165#define MB_CUR_MAX 1
166
167#if 0 /* MISSING FROM BIONIC */
168extern int on_exit(void (*)(int, void *), void *);
169#endif /* MISSING */
170
171__END_DECLS
172
173#endif /* _STDLIB_H_ */
174