85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
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// Boost.Bimap
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//
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// Copyright (c) 2006-2007 Matias Capeletto
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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/// \file detail/manage_bimap_key.hpp
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/// \brief Utility class to manage the set types of a bimap.
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#ifndef BOOST_BIMAP_DETAIL_MANAGE_BIMAP_KEY_HPP
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#define BOOST_BIMAP_DETAIL_MANAGE_BIMAP_KEY_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/config.hpp>
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#include <boost/mpl/eval_if.hpp>
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#include <boost/mpl/identity.hpp>
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#include <boost/bimap/detail/is_set_type_of.hpp>
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#include <boost/bimap/set_of.hpp>
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namespace boost {
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namespace bimaps {
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namespace detail {
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/** \struct boost::bimaps::detail::manage_bimap_key
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\brief Metafunction to manage the set types of a bimap.
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\code
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template< class Type >
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struct manage_bimap_key
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{
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typedef -SetType- type;
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}
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\endcode
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See also bimap, bimap_core.
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**/
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#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
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template< class Type >
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struct manage_bimap_key
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{
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typedef BOOST_DEDUCED_TYPENAME
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mpl::eval_if< BOOST_DEDUCED_TYPENAME is_set_type_of< Type >::type,
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// {
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mpl::identity< Type >,
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// }
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// else
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// {
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// Default it to a set
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mpl::identity< set_of< Type > >
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// }
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>::type set_type;
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// Returns set_type and evaluate the concept_checked_type
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typedef BOOST_DEDUCED_TYPENAME mpl::if_c< true, set_type,
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BOOST_DEDUCED_TYPENAME set_type::lazy_concept_checked::type
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>::type type;
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};
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#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES
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} // namespace detail
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} // namespace bimaps
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} // namespace boost
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#endif // BOOST_BIMAP_DETAIL_MANAGE_BIMAP_KEY_HPP
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