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- /*=============================================================================
- Copyright (c) 2001-2011 Joel de Guzman
- 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)
- =============================================================================*/
- #if !defined(BOOST_SPIRIT_WHAT_APRIL_21_2007_0732AM)
- #define BOOST_SPIRIT_WHAT_APRIL_21_2007_0732AM
- #if defined(_MSC_VER)
- #pragma once
- #endif
- #include <boost/mpl/assert.hpp>
- #include <boost/spirit/home/support/info.hpp>
- #include <boost/spirit/home/qi/meta_compiler.hpp>
- namespace boost { namespace spirit { namespace qi
- {
- template <typename Expr>
- inline info what(Expr const& expr)
- {
- // Report invalid expression error as early as possible.
- // If you got an error_expr_is_not_convertible_to_a_parser
- // error message here, then the expression (expr) is not a
- // valid spirit qi expression.
- BOOST_SPIRIT_ASSERT_MATCH(qi::domain, Expr);
- return compile<qi::domain>(expr).what(unused);
- }
- }}}
- #endif
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