shithub: npe

ref: 4c1fa073c7d7fff3c4e21717fcb0ad81a9ab3cf7
dir: /libnpe/isnormal.c/

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

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