shithub: scc

ref: 2808d4eb5c01837aa901cc6512f563da2d8db8ea
dir: /lib/c/src/isxdigit.c/

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#define __USE_MACROS
#include <ctype.h>
#undef isxdigit

int
isxdigit(int c)
{
	return (__ctype+1)[c] & (_D|_X);
}