45 lines
1.1 KiB
C++
45 lines
1.1 KiB
C++
//-----------------------------------------------------------------------------
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// boost mpl/always.hpp header file
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// See http://www.boost.org for updates, documentation, and revision history.
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//-----------------------------------------------------------------------------
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//
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// Copyright (c) 2001-02
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// Aleksey Gurtovoy
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// 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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#ifndef BOOST_MPL_ALWAYS_HPP_INCLUDED
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#define BOOST_MPL_ALWAYS_HPP_INCLUDED
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#include "boost/mpl/aux_/preprocessor/def_params_tail.hpp"
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#include "boost/mpl/void.hpp"
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#include "boost/mpl/aux_/arity_spec.hpp"
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#include "boost/mpl/aux_/lambda_spec.hpp"
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namespace boost {
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namespace mpl {
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template< typename Value >
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struct always
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{
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template<
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typename T
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BOOST_MPL_PP_NESTED_DEF_PARAMS_TAIL(1, typename T, void_)
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>
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struct apply
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{
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typedef Value type;
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};
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};
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BOOST_MPL_AUX_ARITY_SPEC(1,always)
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BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(1,always)
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} // namespace mpl
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} // namespace boost
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#endif // BOOST_MPL_ALWAYS_HPP_INCLUDED
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