2 #ifndef BOOST_MPL_AUX_HAS_KEY_IMPL_HPP_INCLUDED
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3 #define BOOST_MPL_AUX_HAS_KEY_IMPL_HPP_INCLUDED
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5 // Copyright Aleksey Gurtovoy 2002-2004
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6 // Copyright David Abrahams 2003
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8 // Distributed under the Boost Software License, Version 1.0.
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9 // (See accompanying file LICENSE_1_0.txt or copy at
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10 // http://www.boost.org/LICENSE_1_0.txt)
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12 // See http://www.boost.org/libs/mpl for documentation.
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14 // $Id: has_key_impl.hpp 49267 2008-10-11 06:19:02Z agurtovoy $
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15 // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $
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16 // $Revision: 49267 $
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18 #include <boost/mpl/has_key_fwd.hpp>
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19 #include <boost/mpl/aux_/traits_lambda_spec.hpp>
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21 namespace boost { namespace mpl {
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23 // no default implementation; the definition is needed to make MSVC happy
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25 template< typename Tag > struct has_key_impl
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27 template< typename AssociativeSequence, typename Key > struct apply;
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30 BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2,has_key_impl)
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34 #endif // BOOST_MPL_AUX_HAS_KEY_IMPL_HPP_INCLUDED
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