115 lines
2.5 KiB
C++
115 lines
2.5 KiB
C++
// Copyright David Abrahams 2006. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_CONCEPT_CHECK_MSVC_DWA2006429_HPP
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# define BOOST_CONCEPT_CHECK_MSVC_DWA2006429_HPP
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# include <boost/preprocessor/cat.hpp>
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# include <boost/concept/detail/backward_compatibility.hpp>
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# ifdef BOOST_OLD_CONCEPT_SUPPORT
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# include <boost/concept/detail/has_constraints.hpp>
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# include <boost/mpl/if.hpp>
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# endif
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namespace boost { namespace concepts {
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template <class Model>
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struct check
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{
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virtual void failed(Model* x)
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{
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x->~Model();
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}
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};
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# ifndef BOOST_NO_PARTIAL_SPECIALIZATION
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struct failed {};
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template <class Model>
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struct check<failed ************ Model::************>
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{
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virtual void failed(Model* x)
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{
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x->~Model();
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}
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};
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# endif
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# ifdef BOOST_OLD_CONCEPT_SUPPORT
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namespace detail
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{
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// No need for a virtual function here, since evaluating
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// not_satisfied below will have already instantiated the
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// constraints() member.
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struct constraint {};
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}
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template <class Model>
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struct require
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: mpl::if_c<
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not_satisfied<Model>::value
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, detail::constraint
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# ifndef BOOST_NO_PARTIAL_SPECIALIZATION
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, check<Model>
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# else
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, check<failed ************ Model::************>
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# endif
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>::type
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{};
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# else
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template <class Model>
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struct require
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# ifndef BOOST_NO_PARTIAL_SPECIALIZATION
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: check<Model>
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# else
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: check<failed ************ Model::************>
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# endif
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{};
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# endif
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# if BOOST_WORKAROUND(BOOST_MSVC, == 1310)
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//
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// The iterator library sees some really strange errors unless we
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// do things this way.
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//
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template <class Model>
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struct require<void(*)(Model)>
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{
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virtual void failed(Model*)
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{
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require<Model>();
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}
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};
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# define BOOST_CONCEPT_ASSERT_FN( ModelFnPtr ) \
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enum \
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{ \
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BOOST_PP_CAT(boost_concept_check,__LINE__) = \
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sizeof(::boost::concepts::require<ModelFnPtr>) \
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}
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# else // Not vc-7.1
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template <class Model>
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require<Model>
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require_(void(*)(Model));
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# define BOOST_CONCEPT_ASSERT_FN( ModelFnPtr ) \
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enum \
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{ \
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BOOST_PP_CAT(boost_concept_check,__LINE__) = \
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sizeof(::boost::concepts::require_((ModelFnPtr)0)) \
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}
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# endif
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}}
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#endif // BOOST_CONCEPT_CHECK_MSVC_DWA2006429_HPP
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