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- // Copyright (c) 2001-2011 Hartmut Kaiser
- //
- // 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_KARMA_UNUSED_DELIMITER_MAR_15_2009_0923PM)
- #define BOOST_SPIRIT_KARMA_UNUSED_DELIMITER_MAR_15_2009_0923PM
- #if defined(_MSC_VER)
- #pragma once
- #endif
- #include <boost/spirit/home/support/unused.hpp>
- namespace boost { namespace spirit { namespace karma { namespace detail
- {
- template <typename Delimiter>
- struct unused_delimiter : unused_type
- {
- unused_delimiter(Delimiter const& delim)
- : delimiter(delim) {}
- Delimiter const& delimiter;
- // silence MSVC warning C4512: assignment operator could not be generated
- BOOST_DELETED_FUNCTION(unused_delimiter& operator= (unused_delimiter const&))
- };
- // If a surrounding verbatim[] directive was specified, the current
- // delimiter is of the type unused_delimiter. In this case we
- // re-activate the delimiter which was active before the verbatim[]
- // directive.
- template <typename Delimiter, typename Default>
- inline Delimiter const&
- get_delimiter(unused_delimiter<Delimiter> const& u, Default const&)
- {
- return u.delimiter;
- }
- // If no surrounding verbatim[] directive was specified we activate
- // a single space as the delimiter to use.
- template <typename Delimiter, typename Default>
- inline Default const&
- get_delimiter(Delimiter const&, Default const& d)
- {
- return d;
- }
- }}}}
- #endif
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