-> void *memchr __P((const void *, int, size_t));
-> int   memcmp __P((const void *, const void *, size_t));
-> void *memcpy __P((void *, const void *, size_t));
-> void *memmove __P((void *, const void *, size_t));
-> void *memset __P((void *, int, size_t));
char    *strcat __P((char *, const char *));
char    *strchr __P((const char *, int));
int      strcmp __P((const char *, const char *));
int      strcoll __P((const char *, const char *));
-> char *strcpy __P((char *, const char *));
size_t   strcspn __P((const char *, const char *));
char    *strerror __P((int));
-> size_t        strlen __P((const char *));
char    *strncat __P((char *, const char *, size_t));
int      strncmp __P((const char *, const char *, size_t));
-> char *strncpy __P((char *, const char *, size_t));
char    *strpbrk __P((const char *, const char *));
char    *strrchr __P((const char *, int));
size_t   strspn __P((const char *, const char *));
char    *strstr __P((const char *, const char *));
char    *strtok __P((char *, const char *));
size_t   strxfrm __P((char *, const char *, size_t));