int ffs(int __val)int ffsl(long __val)int ffsll(long long __val)void * memccpy(void *, const void *, int, size_t)void * memchr(const void *, int, size_t) __ATTR_PURE__int memcmp(const void *, const void *, size_t) __ATTR_PURE__void * memcpy(void *, const void *, size_t)void * memmem(const void *, size_t, const void *, size_t) __ATTR_PURE__void * memmove(void *, const void *, size_t)void * memrchr(const void *, int, size_t) __ATTR_PURE__void * memset(void *, int, size_t)int strcasecmp(const char *, const char *) __ATTR_PURE__char * strcasestr(const char *, const char *) __ATTR_PURE__char * strcat(char *, const char *)char * strchr(const char *, int) __ATTR_PURE__char * strchrnul(const char *, int) __ATTR_PURE__int strcmp(const char *, const char *) __ATTR_PURE__char * strcpy(char *, const char *)size_t strcspn(const char *__s, const char *__reject) __ATTR_PURE__char * strdup(const char *s1)size_t strlcat(char *, const char *, size_t)size_t strlcpy(char *, const char *, size_t)size_t strlen(const char *) __ATTR_PURE__char * strlwr(char *)int strncasecmp(const char *, const char *, size_t) __ATTR_PURE__char * strncat(char *, const char *, size_t)int strncmp(const char *, const char *, size_t) __ATTR_PURE__char * strncpy(char *, const char *, size_t)size_t strnlen(const char *, size_t) __ATTR_PURE__char * strpbrk(const char *__s, const char *__accept) __ATTR_PURE__char * strrchr(const char *, int) __ATTR_PURE__char * strrev(char *)char * strsep(char **, const char *)size_t strspn(const char *__s, const char *__accept) __ATTR_PURE__char * strstr(const char *, const char *) __ATTR_PURE__char * strtok(char *, const char *)char * strtok_r(char *, const char *, char **)char * strupr(char *)