47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
// Copyright (c) 2009 INRIA Sophia-Antipolis (France).
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// Copyright (c) 2011 GeometryFactory Sarl (France)
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// 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/Mesh_3/include/CGAL/Mesh_3/Has_features.h $
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// $Id: Has_features.h 4dda7b6 2020-05-27T15:53:05+02:00 Sébastien Loriot
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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// Author(s) : Stéphane Tayeb, Laurent Rineau
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#ifndef CGAL_MESH_3_HAS_FEATURES_H
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#define CGAL_MESH_3_HAS_FEATURES_H
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#include <CGAL/license/Triangulation_3.h>
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#include <boost/mpl/has_xxx.hpp>
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#include <CGAL/tags.h>
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namespace CGAL {
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namespace Mesh_3 {
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namespace internal {
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// A type has_Has_features to check if type 'Has_features' is a nested
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// type of any class
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BOOST_MPL_HAS_XXX_TRAIT_DEF(Has_features)
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template <typename Mesh_domain,
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bool has_Has_features = has_Has_features<Mesh_domain>::value>
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struct Has_features :
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public CGAL::Boolean_tag<Mesh_domain::Has_features::value>
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// when Mesh_domain has the nested type Has_features
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{};
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template <typename Mesh_domain>
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struct Has_features<Mesh_domain, false> : public CGAL::Tag_false
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// when Mesh_domain does not have the nested type Has_features
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{};
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} // end namespace internal
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} // end namespace Mesh_3
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} // end namespace CGAL
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#endif // CGAL_MESH_3_HAS_FEATURES_H
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