shithub: scc

ref: fc3cb31e545ef5afe71e155275e2bb454491e0d1
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);
}