1 /*
2 * Copyright (C) 2015 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
29 #pragma once
30
31 #include <sys/cdefs.h>
32
33 #if __ANDROID_API__ < 19
34
35 __BEGIN_DECLS
36
abs(int __n)37 static __inline int abs(int __n) { return (__n < 0) ? -__n : __n; }
38
labs(long __n)39 static __inline long labs(long __n) { return (__n < 0L) ? -__n : __n; }
40
llabs(long long __n)41 static __inline long long llabs(long long __n) {
42 return (__n < 0LL) ? -__n : __n;
43 }
44
45 __END_DECLS
46
47 #endif
48
49
50
51 #if __ANDROID_API__ < 21
52
53 #include <errno.h>
54 #include <float.h>
55 #include <stdlib.h>
56
57 __BEGIN_DECLS
58
strtof(const char * nptr,char ** endptr)59 static __inline float strtof(const char* nptr, char** endptr) {
60 double d = strtod(nptr, endptr);
61 if (d > FLT_MAX) {
62 errno = ERANGE;
63 return __builtin_huge_valf();
64 } else if (d < -FLT_MAX) {
65 errno = ERANGE;
66 return -__builtin_huge_valf();
67 }
68 return __BIONIC_CAST(static_cast, float, d);
69 }
70
atof(const char * nptr)71 static __inline double atof(const char *nptr) { return (strtod(nptr, NULL)); }
72
rand(void)73 static __inline int rand(void) { return (int)lrand48(); }
74
srand(unsigned int __s)75 static __inline void srand(unsigned int __s) { srand48(__s); }
76
random(void)77 static __inline long random(void) { return lrand48(); }
78
srandom(unsigned int __s)79 static __inline void srandom(unsigned int __s) { srand48(__s); }
80
grantpt(int __fd __attribute ((unused)))81 static __inline int grantpt(int __fd __attribute((unused))) {
82 return 0; /* devpts does this all for us! */
83 }
84
85 __END_DECLS
86
87 #endif
88
89
90
91 #if __ANDROID_API__ < 26
92
93 #include <stdlib.h>
94 #include <xlocale.h>
95
96 __BEGIN_DECLS
97
strtod_l(const char * __s,char ** __end_ptr,locale_t __l)98 static __inline double strtod_l(const char* __s, char** __end_ptr, locale_t __l) {
99 return strtod(__s, __end_ptr);
100 }
101
strtof_l(const char * __s,char ** __end_ptr,locale_t __l)102 static __inline float strtof_l(const char* __s, char** __end_ptr, locale_t __l) {
103 return strtof(__s, __end_ptr);
104 }
105
strtol_l(const char * __s,char ** __end_ptr,int __base,locale_t __l)106 static __inline long strtol_l(const char* __s, char** __end_ptr, int __base, locale_t __l) {
107 return strtol(__s, __end_ptr, __base);
108 }
109
110 __END_DECLS
111
112 #endif
113