xref: /optee_os/lib/libutils/isoc/include/string.h (revision bc420748bfc44a9e09000a3966fc59e9e0219df4)
1 /*
2  * Copyright (c) 2014, STMicroelectronics International N.V.
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 are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  *
11  * 2. Redistributions in binary form must reproduce the above copyright notice,
12  * this list of conditions and the following disclaimer in the documentation
13  * and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
19  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
20  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
21  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
24  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25  * POSSIBILITY OF SUCH DAMAGE.
26  */
27 
28 /*
29  * This file provides what C99 standard requires for <string.h>
30  * for some functions
31  */
32 
33 #ifndef STRING_H
34 #define STRING_H
35 
36 #include <stddef.h>
37 #include <sys/cdefs.h>
38 
39 void *memcpy(void *__restrict s1, const void *__restrict s2, size_t n);
40 void *memmove(void *s1, const void *s2, size_t n);
41 int memcmp(const void *s1, const void *s2, size_t n);
42 void *memset(void *s, int c, size_t n);
43 
44 int strcmp(const char *s1, const char *s2);
45 int strncmp(const char *s1, const char *s2, size_t n);
46 size_t strlen(const char *s);
47 size_t strnlen(const char *s, size_t n);
48 char *strdup(const char *s);
49 char *strndup(const char *s, size_t n);
50 
51 void *memchr(const void *buf, int c, size_t length);
52 
53 #endif /* STRING_H */
54