CGAL_CFG_FPU_ROUNDING_MODE_UNWINDING_VC_BUG.cpp
// Copyright (c) 1997-2001
// Utrecht University (The Netherlands),
// ETH Zurich (Switzerland),
// INRIA Sophia-Antipolis (France),
// Max-Planck-Institute Saarbruecken (Germany),
// and Tel-Aviv University (Israel). All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
//
// Author(s) : Andreas Fabri
//| If a compiler has problems with restoring the rounding mode in a try/catch
//| CGAL_CFG_FPU_ROUNDING_MODE_UNWINDING_VC_BUG
#ifdef _MSC_VER
#include <float.h>
int
main()
{
try
{
_controlfp( _RC_UP, _MCW_RC );
throw 1;
}
catch ( ... )
{
// Sets the rounding mode to 0 and show that it's realy the case.
_controlfp( 0, _MCW_RC );
}
// After the catch, this value will not be 0 in x64
unsigned int cw = _controlfp( 0, 0 ) & _MCW_RC;
return (cw != 0);
}
#else
int main()
{
return 0;
}
#endif