68 lines
2.2 KiB
C++
Executable File
68 lines
2.2 KiB
C++
Executable File
// Copyright (c) 2002,2003
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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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// This file gathers the necessary adaptors so that the following
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// C++ number types that come with GMP can be used by CGAL :
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// - mpz_class (see #include <CGAL/mpz_class.h>)
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// - mpq_class (see #include <CGAL/mpq_class.h>)
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// - mpf_class support is commented out until to_interval() is implemented.
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// It is probably not very useful with CGAL anyway.
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// Note that GMP++ use the expression template mechanism, which makes things
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// a little bit complicated in order to make square(x+y) work for example.
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// Reading gmpxx.h shows that ::__gmp_expr<T, T> is the mp[zqf]_class proper,
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// while ::__gmp_expr<T, U> is the others "expressions".
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#ifndef CGAL_GMPXX_H
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#define CGAL_GMPXX_H
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#include <CGAL/number_type_basic.h>
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#include <cstring> // needed by GMP 4.1.4 since <gmpxx.h> misses it.
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#include <gmpxx.h>
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#include <utility>
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#include <CGAL/mpz_class.h>
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#include <CGAL/mpq_class.h>
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#include <CGAL/gmpxx_coercion_traits.h>
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namespace CGAL {
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template < typename T, typename U >
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class Algebraic_structure_traits< ::__gmp_expr<T,U> >
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: public Algebraic_structure_traits< ::__gmp_expr<T,T> >{};
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template < typename T, typename U >
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class Real_embeddable_traits< ::__gmp_expr<T,U> >
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: public Real_embeddable_traits< ::__gmp_expr<T,T> >{};
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} //namespace CGAL
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#include <CGAL/GMPXX_arithmetic_kernel.h>
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#endif // CGAL_GMPXX_H
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