《操作系统》的实验代码。
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#ifndef __LIBS_STRING_H__
#define __LIBS_STRING_H__
#include <defs.h>
size_t strlen(const char *s);
size_t strnlen(const char *s, size_t len);
char *strcpy(char *dst, const char *src);
char *strncpy(char *dst, const char *src, size_t len);
char *strcat(char *dst, const char *src);
char *strdup(const char *src);
char *stradd(const char *src1, const char *src2);
int strcmp(const char *s1, const char *s2);
int strncmp(const char *s1, const char *s2, size_t n);
char *strchr(const char *s, char c);
char *strfind(const char *s, char c);
long strtol(const char *s, char **endptr, int base);
void *memset(void *s, char c, size_t n);
void *memmove(void *dst, const void *src, size_t n);
void *memcpy(void *dst, const void *src, size_t n);
int memcmp(const void *v1, const void *v2, size_t n);
#endif /* !__LIBS_STRING_H__ */