shithub: npe

ref: 2bf42bfc7ce8fae05401547e03cda1a181f89a95
dir: /libnpe/isnormal.c/

#include <math.h>
#include "_npe.h"

int
isnormal(double d)
{
	return d == 0 || isNaN(d) || isInf(d, 0);
}