mirror of https://github.com/CGAL/cgal
75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
// Copyright (c) 2008 INRIA Sophia-Antipolis (France).
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// 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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// Author(s) : Sylvain Pion
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#ifndef CGAL_DIMENSION_H
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#define CGAL_DIMENSION_H
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#include <CGAL/basic.h>
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#include <CGAL/Kernel_traits.h>
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#include <climits>
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CGAL_BEGIN_NAMESPACE
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// These tag classes help dispatching functions based on a geometric dimension.
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template < int dim >
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struct Dimension_tag
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{
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static const int value = dim;
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};
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struct Dynamic_dimension_tag {};
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namespace CGALi {
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template < typename D >
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struct Dim_value {
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static const int value = D::value;
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};
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template <>
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struct Dim_value <Dynamic_dimension_tag> {};
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} // namespace CGALi
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// Ambient_dimension gives access to the dimension of the ambient space of an object.
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template < typename T, typename K = typename Kernel_traits<T>::Kernel >
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struct Ambient_dimension
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: public CGALi::Dim_value< typename K::template Ambient_dimension<T>::type >
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{
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typedef typename K::template Ambient_dimension<T>::type type;
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};
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// Feature_dimension gives access to the dimension of an object.
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template < typename T, typename K = typename Kernel_traits<T>::Kernel >
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struct Feature_dimension
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: public CGALi::Dim_value< typename K::template Feature_dimension<T>::type >
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{
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typedef typename K::template Feature_dimension<T>::type type;
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};
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CGAL_END_NAMESPACE
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#endif // CGAL_DIMENSION_H
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