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39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
/*
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* isinf function
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*
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* Copyright 2008 Petr Sumbera
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#ifndef HAVE_ISINF
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#ifdef HAVE_IEEEFP_H
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#include <ieeefp.h>
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int isinf(double x)
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{
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return (!(finite(x) || isnand(x)));
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}
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#else
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#error No isinf() implementation available.
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#endif
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#endif /* HAVE_ISINF */
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