| /*============================================================================= | |
| 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 |