1 /*=============================================================================
2 Copyright (c) 2001-2014 Joel de Guzman
4 Distributed under the Boost Software License, Version 1.0. (See accompanying
5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 =============================================================================*/
7 #if !defined(BOOST_SPIRIT_X3_CALC8_EXPRESSION_HPP)
8 #define BOOST_SPIRIT_X3_CALC8_EXPRESSION_HPP
10 #include <boost/spirit/home/x3.hpp>
15 namespace x3 = boost::spirit::x3;
18 struct expression_class;
19 typedef x3::rule<expression_class, ast::expression> expression_type;
20 typedef expression_type::id expression_id;
21 BOOST_SPIRIT_DECLARE(expression_type);
24 parser::expression_type const& expression();