genericopenlibs/openenvcore/libm/src/s_infinite.c
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 11 Jun 2010 15:26:22 +0300
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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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* This material, including documentation and any related 
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* computer programs, is protected by copyright controlled by 
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* Nokia Corporation. All rights are reserved. Copying, 
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* including reproducing, storing, adapting or translating, any 
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* or all of this material requires the prior written consent of 
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* Nokia Corporation. This material also contains confidential 
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* information which may not be disclosed to others without the 
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* prior written consent of Nokia Corporation.
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* Function:
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* This functions will return the infinite value for the 
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* Double and single precision floating point value.
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* The Sign of the result will be same as the of the argument 
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* passed to the function. 
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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 __infinite(double x)
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{	
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	union IEEEd2bits u, dummy;
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	dummy.d = x;
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	u.bits.sign=dummy.bits.sign;
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	u.bits.exp=2047;
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	u.bits.manh=0;
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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 __infinitef(float x)
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{	
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	union IEEEf2bits u, dummy;
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	dummy.f = x;
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	u.bits.sign=dummy.bits.sign;
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	u.bits.exp=255;
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	u.bits.man=0;
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return u.f;
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}