#ifndef _STRING_H_ #define _STRING_H_ #include "types.h" char *strcpy(char *, const char *); char *strncpy(char *, const char *, size_t); int strcmp(const char *, const char *); size_t strlen(const char *); size_t strnlen(const char *, size_t); void *memset(void *, int, size_t); void *memcpy(void *, const void *, size_t); int memcmp(const void *s1, const void *s2, size_t n); #endif