56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2007 Joel de Guzman
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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 PHOENIX_STATEMENT_SEQUENCE_HPP
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#define PHOENIX_STATEMENT_SEQUENCE_HPP
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#include <boost/spirit/home/phoenix/core/composite.hpp>
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#include <boost/spirit/home/phoenix/core/compose.hpp>
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namespace boost { namespace phoenix
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{
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struct sequence_eval
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{
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template <typename Env, typename A0, typename A1>
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struct result
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{
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typedef void type;
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};
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template <typename RT, typename Env, typename A0, typename A1>
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static void
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eval(Env const& env, A0& a0, A1& a1)
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{
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a0.eval(env);
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a1.eval(env);
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}
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};
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namespace detail
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{
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template <typename BaseT0, typename BaseT1>
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struct comma_result
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{
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typedef actor<
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typename as_composite<
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sequence_eval
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, actor<BaseT0>
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, actor<BaseT1>
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>::type
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> type;
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};
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}
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template <typename BaseT0, typename BaseT1>
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inline typename detail::comma_result<BaseT0, BaseT1>::type
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operator,(actor<BaseT0> const& a0, actor<BaseT1> const& a1)
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{
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return compose<sequence_eval>(a0, a1);
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}
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}}
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#endif
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