63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
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// 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: https://github.com/CGAL/cgal/blob/v5.1/STL_Extension/include/CGAL/result_of.h $
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// $Id: result_of.h 52164b1 2019-10-19T15:34:59+02:00 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 <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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// 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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namespace CGAL{
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// Even if for now we use the tr1 result_of implementation, we use the cpp11
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// namespace since in the future, that's the decltype version that will be used
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namespace cpp11{
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template<typename F>
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struct result_of
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{
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// from boost 1.44 release note https://www.boost.org/users/history/version_1_44_0.html :
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// New template boost::tr1_result_of that implements the TR1 ResultOf protocol even if boost::result_of uses the C++0x decltype-based implementation.
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#if BOOST_VERSION < 104400
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typedef typename boost::result_of<F>::type type;
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#else
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typedef typename boost::tr1_result_of<F>::type type;
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#endif
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};
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}
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}
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#include <CGAL/enable_warnings.h>
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#endif //CGAL_RESULT_OF_H
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