69 lines
1.9 KiB
C++
69 lines
1.9 KiB
C++
/*==============================================================================
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Copyright (c) 2001-2010 Joel de Guzman
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Copyright (c) 2010 Eric Niebler
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#ifndef BOOST_PHOENIX_FUNCTION_FUNCTION_HPP
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#define BOOST_PHOENIX_FUNCTION_FUNCTION_HPP
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#include <boost/config.hpp>
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//#include <boost/phoenix/function/function_handling.hpp>
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#include <boost/phoenix/core/detail/function_eval.hpp>
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#include <boost/preprocessor/facilities/expand.hpp>
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#include <boost/preprocessor/logical/or.hpp>
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#include <boost/utility/result_of.hpp>
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namespace boost { namespace phoenix
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{
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/////////////////////////////////////////////////////////////////////////////
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// Functions
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/////////////////////////////////////////////////////////////////////////////
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namespace expression
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{
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template <typename F, BOOST_PHOENIX_typename_A_void(BOOST_PHOENIX_ACTOR_LIMIT)>
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struct function
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: detail::expression::function_eval<F, BOOST_PHOENIX_A(BOOST_PHOENIX_ACTOR_LIMIT)>
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{};
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}
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// functor which returns our lazy function call extension
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template<typename F>
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struct function
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{
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BOOST_CONSTEXPR function()
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: f()
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{}
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BOOST_CONSTEXPR function(F f_)
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: f(f_)
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{}
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template <typename Sig>
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struct result;
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typename detail::expression::function_eval<F>::type const
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operator()() const
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{
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return detail::expression::function_eval<F>::make(f);
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}
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// Bring in the rest
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#include <boost/phoenix/function/detail/function_operator.hpp>
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F f;
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};
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}
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template<typename F>
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struct result_of<phoenix::function<F>()>
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: phoenix::detail::expression::function_eval<F>
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{};
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}
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#endif
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