47 lines
1.2 KiB
C
47 lines
1.2 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)
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Kernel_23/include/CGAL/Kernel/Same_uncertainty.h $
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// $Id: Same_uncertainty.h 0779373 2020-03-26T13:31:46+01:00 Sébastien Loriot
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// SPDX-License-Identifier: LGPL-3.0-or-later OR LicenseRef-Commercial
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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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