genericopenlibs/openenvcore/libm/src/s_nan.c
author William Roberts <williamr@symbian.org>
Thu, 22 Jul 2010 16:48:56 +0100
branchGCC_SURGE
changeset 45 4b03adbd26ca
parent 0 e4d67989cc36
permissions -rw-r--r--
Catchup to latest Symbian^4
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/*
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* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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* Function: __nan(), __nanf();
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* This functions will return the NAN(Not a number) value for the 
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* Double and single precision floating point value.
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*
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*/
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#include <math.h>
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#include "fpmath.h"
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EXPORT_C double nanval()
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{	
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	union IEEEd2bits u;
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	/*
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	NAN = 7FF8000000000000;
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	*/
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	u.bits.sign 	= 	0;
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	u.bits.exp	=	2047;
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	u.bits.manh	=	524288;
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	u.bits.manl	=	0;
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return u.d;
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}
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EXPORT_C float nanvalf()
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{	
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	union IEEEf2bits u;
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	/*
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	NANF = 7FC00000;
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	*/
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	u.bits.sign=0;
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	u.bits.exp=255;
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	u.bits.man=4194304;
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return u.f;
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}