mirror of https://github.com/CGAL/cgal
74 lines
1.5 KiB
C++
74 lines
1.5 KiB
C++
// Copyright (c) 2013
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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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// $URL$
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// $Id$
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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 <sebastien.loriot@cgal.org>
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#ifndef CGAL_RESULT_OF_H
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#define CGAL_RESULT_OF_H
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#include <CGAL/config.h>
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#include <CGAL/disable_warnings.h>
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#if CGAL_CXX20 || __cpp_lib_is_invocable>=201703L
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// C++>=17
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#elif CGAL_CXX11
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#include <type_traits>
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#else // C++<11
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// Address the warning C4003: not enough actual parameters for macro 'BOOST_PP_SEQ_DETAIL_IS_NOT_EMPTY'
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// result_of.hpp includes files from boost/preprocessor
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// This concerns boost 1_65_1
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#if defined(BOOST_MSVC)
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#pragma warning(push)
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#pragma warning(disable: 4003)
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#endif
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#include <boost/utility/result_of.hpp>
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#if defined(BOOST_MSVC)
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#pragma warning(pop)
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#endif
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#include <boost/version.hpp>
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#endif // end C++<11
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namespace CGAL {
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namespace cpp11 {
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#if CGAL_CXX20 || __cpp_lib_is_invocable>=201703L
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template<typename Signature> class result_of;
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template<typename F, typename... Args>
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class result_of<F(Args...)> : public std::invoke_result<F, Args...> { };
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#elif CGAL_CXX11
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using std::result_of;
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#else // C++<11
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using boost::result_of;
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#endif // end C++<11
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} // end cpp11
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} // end CGAL
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#include <CGAL/enable_warnings.h>
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#endif // CGAL_RESULT_OF_H
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