1/* $NetBSD: unorddf2.c,v 1.1 2003/05/06 08:58:19 rearnsha Exp $ */
2
3/*
4 * Written by Richard Earnshaw, 2003.  This file is in the Public Domain.
5 */
6
7#include "softfloat-for-gcc.h"
8#include "milieu.h"
9#include "softfloat.h"
10
11#include <sys/cdefs.h>
12__FBSDID("$FreeBSD$");
13
14flag __unorddf2(float64, float64);
15
16flag
17__unorddf2(float64 a, float64 b)
18{
19	/*
20	 * The comparison is unordered if either input is a NaN.
21	 * Test for this by comparing each operand with itself.
22	 * We must perform both comparisons to correctly check for
23	 * signalling NaNs.
24	 */
25	return 1 ^ (float64_eq(a, a) & float64_eq(b, b));
26}
27