312     pub fn fgets(buf: *mut c_char, n: c_int, stream: *mut FILE) -> *mut c_char;  in fgets()
350     pub fn strncpy(dst: *mut c_char, src: *const c_char, n: size_t) -> *mut c_char;  in strncpy()
352     pub fn strncat(s: *mut c_char, ct: *const c_char, n: size_t) -> *mut c_char;  in strncat()
354     pub fn strncmp(cs: *const c_char, ct: *const c_char, n: size_t) -> c_int;  in strncmp()
365     pub fn strerror(n: c_int) -> *mut c_char;  in strerror()
367     pub fn strxfrm(s: *mut c_char, ct: *const c_char, n: size_t) -> size_t;  in strxfrm()
369     pub fn wcstombs(dest: *mut c_char, src: *const wchar_t, n: size_t) -> size_t;  in wcstombs()
371     pub fn memchr(cx: *const c_void, c: c_int, n: size_t) -> *mut c_void;  in memchr()
372     pub fn memcmp(cx: *const c_void, ct: *const c_void, n: size_t) -> c_int;  in memcmp()
373     pub fn memcpy(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;  in memcpy()
374     pub fn memmove(dest: *mut c_void, src: *const c_void, n: size_t) -> *mut c_void;  in memmove()
375     pub fn memset(dest: *mut c_void, c: c_int, n: size_t) -> *mut c_void;  in memset()