__extern void *memccpy(void *, const void *, int, size_t);
__extern void *memchr(const void *, int, size_t);
+__extern void *memrchr(const void *, int, size_t);
__extern int memcmp(const void *, const void *, size_t);
__extern void *memcpy(void *, const void *, size_t);
__extern void *memmove(void *, const void *, size_t);
__extern int strncasecmp(const char *, const char *, size_t);
__extern char *strcat(char *, const char *);
__extern char *strchr(const char *, int);
+__extern char *index(const char *, int);
+__extern char *strrchr(const char *, int);
+__extern char *rindex(const char *, int);
__extern int strcmp(const char *, const char *);
__extern char *strcpy(char *, const char *);
__extern size_t strcspn(const char *, const char *);
__extern char *strncpy(char *, const char *, size_t);
__extern size_t strlcpy(char *, const char *, size_t);
__extern char *strpbrk(const char *, const char *);
-__extern char *strrchr(const char *, int);
__extern char *strsep(char **, const char *);
__extern size_t strspn(const char *, const char *);
__extern char *strstr(const char *, const char *);