/* string.h */ extern char *strncpy(char *, const char *, int32); extern char *strncat(char *, const char *, int32); extern int32 strncmp(const char *, const char *, int32); extern char *strchr(const char *, int32); extern char *strrchr(const char *, int32); extern char *strstr(const char *, const char *); extern int32 strnlen(const char *, uint32); extern int strlen(char *str);