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File: increment_actor.hpp
/*============================================================================= Copyright (c) 2003 Jonathan de Halleux (dehalleux@pelikhan.com) http://spirit.sourceforge.net/ 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_SPIRIT_ACTOR_INCREMENT_ACTOR_HPP #define BOOST_SPIRIT_ACTOR_INCREMENT_ACTOR_HPP #include <boost/spirit/home/classic/namespace.hpp> #include <boost/spirit/home/classic/actor/ref_actor.hpp> namespace boost { namespace spirit { BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN /////////////////////////////////////////////////////////////////////////// // Summary: // A semantic action policy that calls the ++ operator on a reference. // (This doc uses convention available in actors.hpp) // // Actions: // ++ref; // // Policy name: // increment_action // // Policy holder, corresponding helper method: // ref_actor, increment_a( ref ); // // () operators: both. // // See also ref_actor for more details. /////////////////////////////////////////////////////////////////////////// struct increment_action { template< typename T > void act(T& ref_) const { ++ref_; } }; /////////////////////////////////////////////////////////////////////////// // helper method that creates a increment_actor. /////////////////////////////////////////////////////////////////////////// template<typename T> inline ref_actor<T,increment_action> increment_a(T& ref_) { return ref_actor<T,increment_action>(ref_); } BOOST_SPIRIT_CLASSIC_NAMESPACE_END }} #endif