shithub: scc

ref: 064bf34e7c8ad49660da901a90e5bcf0ab86097f
dir: /lib/c/isalnum.c/

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

int
isalnum(int c)
{
	return (__ctype+1)[c] & (_U|_L|_D);
}