File: s_isinf_nsl.c

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glibc 2.19-13
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/*
 * Written by Ulrich Drepper <drepper@gmail.com>.
 */

/*
 * __isinf_nsl(x) returns != 0 if x is ±inf, else 0;
 */

#include <math.h>
#include <math_private.h>

int
__isinf_nsl (long double x)
{
	int32_t se,hx,lx;
	GET_LDOUBLE_WORDS(se,hx,lx,x);
	return !(((se & 0x7fff) ^ 0x7fff) | lx | (hx & 0x7fffffff));
}