39 lines
872 B
C++
39 lines
872 B
C++
// Copyright (c) 2010 GeometryFactory (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/STL_Extension/include/CGAL/internal/info_check.h $
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// $Id: info_check.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) : Sebastien Loriot
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//
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#ifndef CGAL_INTERNAL_INFO_CHECK_H
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#define CGAL_INTERNAL_INFO_CHECK_H
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#include <boost/mpl/has_xxx.hpp>
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namespace CGAL {
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namespace internal{
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BOOST_MPL_HAS_XXX_TRAIT_NAMED_DEF(Has_typedef_Info,Info,false)
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template <class T,bool has_info=Has_typedef_Info<T>::value>
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struct Info_check{
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struct type{};
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};
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template <class T>
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struct Info_check<T,true>{
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typedef typename T::Info type;
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};
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} } //namespace CGAL::internal
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#endif //CGAL_INTERNAL_INFO_CHECK_H
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