/*-----------------------------------------------------------------------------+
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Copyright (c) 2010-2010: Joachim Faulhaber
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+------------------------------------------------------------------------------+
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENCE.txt or copy at
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http://www.boost.org/LICENSE_1_0.txt)
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+-----------------------------------------------------------------------------*/
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#ifndef BOOST_ICL_TYPE_TRAITS_INTERVAL_TYPE_OF_HPP_JOFA_100910
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#define BOOST_ICL_TYPE_TRAITS_INTERVAL_TYPE_OF_HPP_JOFA_100910
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#include <boost/mpl/has_xxx.hpp>
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#include <boost/mpl/bool.hpp>
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#include <boost/icl/type_traits/no_type.hpp>
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namespace boost{ namespace icl
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{
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namespace detail
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{
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BOOST_MPL_HAS_XXX_TRAIT_DEF(interval_type)
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}
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template <class Type>
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struct has_interval_type
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: mpl::bool_<detail::has_interval_type<Type>::value>
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{};
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template <class Type, bool has_interval_type>
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struct get_interval_type;
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template <class Type>
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struct get_interval_type<Type, false>
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{
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typedef no_type type;
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};
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template <class Type>
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struct get_interval_type<Type, true>
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{
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typedef typename Type::interval_type type;
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};
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template <class Type>
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struct interval_type_of
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{
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typedef typename
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get_interval_type<Type, has_interval_type<Type>::value>::type type;
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};
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}} // namespace boost icl
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#endif
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