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- /*-----------------------------------------------------------------------------+
- Copyright (c) 2008-2009: Joachim Faulhaber
- +------------------------------------------------------------------------------+
- Distributed under the Boost Software License, Version 1.0.
- (See accompanying file LICENCE.txt or copy at
- http://www.boost.org/LICENSE_1_0.txt)
- +-----------------------------------------------------------------------------*/
- #ifndef BOOST_ICL_TYPE_TRAITS_REP_TYPE_OF_HPP_JOFA_110329
- #define BOOST_ICL_TYPE_TRAITS_REP_TYPE_OF_HPP_JOFA_110329
- #include <boost/config.hpp> // For macro BOOST_STATIC_CONSTANT
- #include <boost/mpl/has_xxx.hpp>
- #include <boost/mpl/or.hpp>
- #include <boost/mpl/and.hpp>
- #include <boost/mpl/not.hpp>
- #include <boost/type_traits/is_same.hpp>
- #include <boost/icl/type_traits/no_type.hpp>
- namespace boost{ namespace icl
- {
- namespace detail
- {
- BOOST_MPL_HAS_XXX_TRAIT_DEF(rep)
- }
- //--------------------------------------------------------------------------
- template <class Type>
- struct has_rep_type
- : mpl::bool_<detail::has_rep<Type>::value>
- {};
- template <class Rep, class Type>
- struct represents // Rep represents Type; Type is_wrapper_of Rep
- : mpl::bool_<detail::has_rep<Type>::value>
- {
- typedef represents type;
- BOOST_STATIC_CONSTANT(bool,
- value = (mpl::and_< has_rep_type<Type>
- , boost::is_same<typename Type::rep, Rep> >::value)
- );
- };
- //--------------------------------------------------------------------------
- template <class Type, bool has_rep>
- struct get_rep_type;
- template <class Type>
- struct get_rep_type<Type, false>
- {
- typedef no_type type;
- };
- template <class Type>
- struct get_rep_type<Type, true>
- {
- typedef typename Type::rep type;
- };
- //--------------------------------------------------------------------------
- template<class Type>
- struct rep_type_of
- {
- typedef typename
- get_rep_type<Type, has_rep_type<Type>::value>::type type;
- };
- }} // namespace boost icl
- #endif
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