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boost_mpl/include/boost/mpl/select2nd.hpp
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2004-07-26 00:32:12 +00:00

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//-----------------------------------------------------------------------------
// boost mpl/select2nd.hpp header file
// See http://www.boost.org for updates, documentation, and revision history.
//-----------------------------------------------------------------------------
//
// Copyright (c) 2000-03
// Aleksey Gurtovoy
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_MPL_SELECT2ND_HPP_INCLUDED
#define BOOST_MPL_SELECT2ND_HPP_INCLUDED
#include "boost/mpl/aux_/void_spec.hpp"
#include "boost/mpl/aux_/lambda_support.hpp"
#include "boost/mpl/aux_/config/eti.hpp"
namespace boost {
namespace mpl {
template<
typename BOOST_MPL_AUX_VOID_SPEC_PARAM(Pair)
>
struct select2nd
{
typedef typename Pair::second type;
BOOST_MPL_AUX_LAMBDA_SUPPORT(1,select2nd,(Pair))
};
#if defined(BOOST_MPL_MSVC_60_ETI_BUG)
template<> struct select2nd<int>
{
typedef int type;
};
#endif
BOOST_MPL_AUX_VOID_SPEC(1, select2nd)
} // namespace mpl
} // namespace boost
#endif // BOOST_MPL_SELECT2ND_HPP_INCLUDED