ref: 51726ed12da4175bb9f73f8bf72e02fe5a816fd1
dir: /lib/c/src/isdigit.c/
/* See LICENSE file for copyright and license details. */ #define __USE_MACROS #include <ctype.h> #undef isdigit int isdigit(int c) { return __ctype[(unsigned char) c] & (_D); }