shithub: scc

ref: 249cfc0d480adfc2b225761d7346b6aa114dc8f9
dir: /lib/c/isxdigit.c/

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

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