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40 lines
1.0 KiB
40 lines
1.0 KiB
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#ifndef BOOST_MPL_SET_AUX_AT_IMPL_HPP_INCLUDED |
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#define BOOST_MPL_SET_AUX_AT_IMPL_HPP_INCLUDED |
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// Copyright Aleksey Gurtovoy 2003-2004 |
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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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// |
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// See http://www.boost.org/libs/mpl for documentation. |
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// $Id: at_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
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// $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ |
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// $Revision: 49267 $ |
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#include <boost/mpl/at_fwd.hpp> |
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#include <boost/mpl/set/aux_/has_key_impl.hpp> |
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#include <boost/mpl/set/aux_/tag.hpp> |
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#include <boost/mpl/if.hpp> |
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#include <boost/mpl/void.hpp> |
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namespace boost { namespace mpl { |
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template<> |
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struct at_impl< aux::set_tag > |
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{ |
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template< typename Set, typename T > struct apply |
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{ |
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typedef typename if_< |
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has_key_impl<aux::set_tag>::apply<Set,T> |
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, T |
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, void_ |
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>::type type; |
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}; |
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}; |
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}} |
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#endif // BOOST_MPL_SET_AUX_AT_IMPL_HPP_INCLUDED
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