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