author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Fri, 11 Jun 2010 15:26:22 +0300 | |
changeset 34 | 5fae379060a7 |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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/*-------------------------------------------------------------------- |
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*© Portions copyright (c) 2006 Nokia Corporation. All rights reserved. |
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*-------------------------------------------------------------------- |
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*/ |
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/*- |
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* Copyright (c) 2004 David Schultz <das@FreeBSD.ORG> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* $FreeBSD: src/lib/libc/gen/isinf.c,v 1.2 2004/07/10 15:52:26 marcel Exp $ |
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*/ |
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#include <math.h> |
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#include "fpmath.h" |
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/* |
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* XXX These routines belong in libm, but they must remain in libc for |
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* binary compat until we can bump libm's major version number. |
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*/ |
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#ifndef __SYMBIAN32__ |
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__weak_reference(__isinf, isinf); |
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#endif //__SYMBIAN32__ |
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EXPORT_C int __isinf(double d) |
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{ |
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union IEEEd2bits u; |
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u.d = d; |
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#ifdef __SYMBIAN32__ |
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return (u.bits.sign) ? (-1)*(u.bits.exp == 2047 && u.bits.manl == 0 && u.bits.manh == 0): |
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(u.bits.exp == 2047 && u.bits.manl == 0 && u.bits.manh == 0); |
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#else |
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return (u.bits.exp == 2047 && u.bits.manl == 0 && u.bits.manh == 0); |
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#endif //__SYMBIAN32__ |
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} |
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EXPORT_C int __isinff(float f) |
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{ |
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union IEEEf2bits u; |
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|
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u.f = f; |
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#ifdef __SYMBIAN32__ |
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return (u.bits.sign) ? (-1)*(u.bits.exp == 255 && u.bits.man == 0): |
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(u.bits.exp == 255 && u.bits.man == 0) ; |
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#else |
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return (u.bits.exp == 255 && u.bits.man == 0); |
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#endif //__SYMBIAN32__ |
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} |
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|
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|
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EXPORT_C int __isinfl(long double e) |
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{ |
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union IEEEl2bits u; |
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|
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u.e = e; |
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mask_nbit_l(u); |
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#ifndef __alpha__ |
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return (u.bits.exp == 32767 && u.bits.manl == 0 && u.bits.manh == 0); |
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#else |
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return (u.bits.exp == 2047 && u.bits.manl == 0 && u.bits.manh == 0); |
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#endif |
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} |