mirror of https://github.com/CGAL/cgal
64 lines
1.8 KiB
C++
64 lines
1.8 KiB
C++
// Copyright (c) 1997-2001 Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland), Freie Universitaet Berlin (Germany),
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// INRIA Sophia-Antipolis (France), Martin-Luther-University Halle-Wittenberg
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// (Germany), Max-Planck-Institute Saarbruecken (Germany), RISC Linz (Austria),
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// and Tel-Aviv University (Israel). All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; version 2.1 of the License.
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// See the file LICENSE.LGPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Andreas Fabri
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// ---------------------------------------------------------------------
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// This program is used by install_cgal.
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// The following documentation will be pasted in the generated configfile.
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// ---------------------------------------------------------------------
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//| If a compiler has problems with restoring the rounding mode in a try/catch
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//| CGAL_CFG_FPU_ROUNDING_MODE_UNWINDING_VC_BUG
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#ifdef _MSC_VER
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#include <float.h>
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int
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main()
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{
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try
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{
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_controlfp( _RC_UP, _MCW_RC );
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throw 1;
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}
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catch ( ... )
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{
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// Sets the rounding mode to 0 and show that it's realy the case.
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_controlfp( 0, _MCW_RC );
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}
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// After the catch, this value will not be 0 in x64
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unsigned int cw = _controlfp( 0, 0 ) & _MCW_RC;
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return (cw != 0);
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}
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#else
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int main()
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{
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return 0;
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}
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#endif
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