shithub: scc

ref: 044ed044112af8996f280664833682a4f437016f
dir: /src/libc/ctype/isalnum.c/

View raw version 
#include <ctype.h>
#undef isalnum

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