sysdeps/ieee754/ldbl-128/s_isinf_nsl.c


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/*
 * Written by Ulrich Drepper <drepper@gmail.com>
 */

/*
 * __isinf_nsl(x) returns != 0 if x is ±inf, else 0;
 * no branching!
 */

#include "math.h"
#include "math_private.h"

int
__isinf_nsl (long double x)
{
	int64_t hx,lx;
	GET_LDOUBLE_WORDS64(hx,lx,x);
	return !(lx | ((hx & 0x7fffffffffffffffLL) ^ 0x7fff000000000000LL));
}