ref: b5b9eac2d984b1f67cd71c4547a3afd7f2bb6dd4
dir: /lib/c/src/isxdigit.c/
/* See LICENSE file for copyright and license details. */ #define __USE_MACROS #include <ctype.h> #undef isxdigit int isxdigit(int c) { return __ctype[(unsigned char) c] & (_D|_X); }