56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
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// Copyright (c) 2005
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// Utrecht University (The Netherlands),
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// ETH Zurich (Switzerland),
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// INRIA Sophia-Antipolis (France),
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// Max-Planck-Institute Saarbruecken (Germany),
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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; either version 3 of the License,
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// or (at your option) any later version.
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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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// SPDX-License-Identifier: LGPL-3.0+
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//
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//
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// Author(s) : Sylvain Pion
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#ifndef CGAL_SAME_UNCERTAINTY_H
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#define CGAL_SAME_UNCERTAINTY_H
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#include <CGAL/config.h>
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namespace CGAL {
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template < typename T1, typename T2 >
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struct Same_uncertainty
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{
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typedef T1 type;
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};
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template < typename T > class Uncertain;
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template < typename T > struct Sgn;
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template < typename T1, typename T2 >
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struct Same_uncertainty < T1, Uncertain<T2> >
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{
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typedef Uncertain<T1> type;
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};
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// Short cut to extract uncertainty from a number type directly.
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template < typename T1, typename NT >
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struct Same_uncertainty_nt
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: Same_uncertainty <T1, typename Sgn<NT>::result_type > {};
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} //namespace CGAL
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#endif // CGAL_SAME_UNCERTAINTY_H
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