audk/StdLib/LibC/Softfloat/unordtf2.c

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/* $NetBSD: unordtf2.c,v 1.2 2014/01/30 19:11:41 matt Exp $ */
/** @file
*
* Copyright (c) 2013 - 2014, ARM Limited. All rights reserved.
*
* This program and the accompanying materials
* are licensed and made available under the terms and conditions of the BSD License
* which accompanies this distribution. The full text of the license may be found at
* http://opensource.org/licenses/bsd-license.php
*
* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
*
**/
/*
* Written by Richard Earnshaw, 2003. This file is in the Public Domain.
*/
#include "softfloat-for-gcc.h"
#include "milieu.h"
#include "softfloat.h"
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: unordtf2.c,v 1.2 2014/01/30 19:11:41 matt Exp $");
#endif /* LIBC_SCCS and not lint */
#ifdef FLOAT128
flag __unordtf2(float128, float128);
flag
__unordtf2(float128 a, float128 b)
{
/*
* The comparison is unordered if either input is a NaN.
* Test for this by comparing each operand with itself.
* We must perform both comparisons to correctly check for
* signalling NaNs.
*/
return 1 ^ (float128_eq(a, a) & float128_eq(b, b));
}
#endif /* FLOAT128 */