stdlib.h revision c13fb75ceabb47f8292be206db80b93889fccf66 
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 exit(int);
45extern __noreturn void abort(void);
46extern int atexit(void (*)(void));
47
48extern char *getenv(const char *);
49extern int putenv(const char *);
50extern int setenv(const char *, const char *, int);
51extern int unsetenv(const char *);
52extern int clearenv(void);
53
54extern char* mkdtemp(char*);
55extern char* mktemp(char*) __warnattr("mktemp possibly used unsafely; consider using mkstemp");
56extern int mkstemp(char*);
57
58extern long strtol(const char *, char **, int);
59extern long long strtoll(const char *, char **, int);
60extern unsigned long strtoul(const char *, char **, int);
61extern unsigned long long strtoull(const char *, char **, int);
62extern double strtod(const char *nptr, char **endptr);
63
64extern int posix_memalign(void **memptr, size_t alignment, size_t size);
65
66static __inline__ float strtof(const char *nptr, char **endptr)
67{
68    return (float)strtod(nptr, endptr);
69}
70
71extern int atoi(const char *) __purefunc;
72extern long atol(const char *) __purefunc;
73extern long long atoll(const char *) __purefunc;
74
75static __inline__ double atof(const char *nptr)
76{
77    return (strtod(nptr, NULL));
78}
79
80extern int abs(int) __pure2;
81extern long labs(long) __pure2;
82extern long long llabs(long long) __pure2;
83
84extern char * realpath(const char *path, char *resolved);
85extern int system(const char * string);
86
87extern void * bsearch(const void *key, const void *base0,
88	size_t nmemb, size_t size,
89	int (*compar)(const void *, const void *));
90
91extern void qsort(void *, size_t, size_t, int (*)(const void *, const void *));
92
93extern long jrand48(unsigned short *);
94extern long mrand48(void);
95extern long nrand48(unsigned short *);
96extern long lrand48(void);
97extern unsigned short *seed48(unsigned short*);
98extern double erand48(unsigned short xsubi[3]);
99extern double drand48(void);
100extern void srand48(long);
101extern unsigned int arc4random(void);
102extern void arc4random_stir(void);
103extern void arc4random_addrandom(unsigned char *, int);
104
105#define RAND_MAX 0x7fffffff
106static __inline__ int rand(void) {
107    return (int)lrand48();
108}
109static __inline__ void srand(unsigned int __s) {
110    srand48(__s);
111}
112static __inline__ long random(void)
113{
114    return lrand48();
115}
116static __inline__ void srandom(unsigned int __s)
117{
118    srand48(__s);
119}
120
121/* Basic PTY functions.  These only work if devpts is mounted! */
122
123extern int    unlockpt(int);
124extern char*  ptsname(int);
125extern int    ptsname_r(int, char*, size_t);
126extern int    getpt(void);
127
128static __inline__ int grantpt(int __fd __attribute((unused)))
129{
130  (void)__fd;
131  return 0;     /* devpts does this all for us! */
132}
133
134typedef struct {
135    int  quot;
136    int  rem;
137} div_t;
138
139extern div_t   div(int, int);
140
141typedef struct {
142    long int  quot;
143    long int  rem;
144} ldiv_t;
145
146extern ldiv_t   ldiv(long, long);
147
148typedef struct {
149    long long int  quot;
150    long long int  rem;
151} lldiv_t;
152
153extern lldiv_t   lldiv(long long, long long);
154
155#if 1 /* MISSING FROM BIONIC - ENABLED FOR STLPort and libstdc++-v3 */
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#endif /* MISSING */
165
166#define MB_CUR_MAX 1
167
168#if 0 /* MISSING FROM BIONIC */
169extern int on_exit(void (*)(int, void *), void *);
170#endif /* MISSING */
171
172__END_DECLS
173
174#endif /* _STDLIB_H_ */
175