1 /* 2 * Header for libc string functions 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU Library General Public License version 2. 6 */ 7 #ifndef _STRING_H_ 8 #define _STRING_H_ 9 10 extern size_t strlen(const char *buf); 11 extern size_t strnlen(const char *buf, size_t maxlen); 12 extern char *strcat(char *dest, const char *src); 13 extern char *strcpy(char *dest, const char *src); 14 extern int strcmp(const char *a, const char *b); 15 extern int strncmp(const char *a, const char *b, size_t n); 16 extern char *strchr(const char *s, int c); 17 extern char *strrchr(const char *s, int c); 18 extern char *strchrnul(const char *s, int c); 19 extern char *strstr(const char *haystack, const char *needle); 20 extern void *memset(void *s, int c, size_t n); 21 extern void *memcpy(void *dest, const void *src, size_t n); 22 extern int memcmp(const void *s1, const void *s2, size_t n); 23 extern void *memmove(void *dest, const void *src, size_t n); 24 extern void *memchr(const void *s, int c, size_t n); 25 26 #endif /* _STRING_H_ */ 27