Chris@16: //  Copyright (c) 2001-2011 Hartmut Kaiser
Chris@16: //
Chris@16: //  Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #if !defined(BOOST_SPIRIT_KARMA_UNUSED_DELIMITER_MAR_15_2009_0923PM)
Chris@16: #define BOOST_SPIRIT_KARMA_UNUSED_DELIMITER_MAR_15_2009_0923PM
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/spirit/home/support/unused.hpp>
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace karma { namespace detail
Chris@16: {
Chris@16:     template <typename Delimiter>
Chris@16:     struct unused_delimiter : unused_type
Chris@16:     {
Chris@16:         unused_delimiter(Delimiter const& delim)
Chris@16:           : delimiter(delim) {}
Chris@16:         Delimiter const& delimiter;
Chris@16: 
Chris@16:     private:
Chris@16:         // silence MSVC warning C4512: assignment operator could not be generated
Chris@16:         unused_delimiter& operator= (unused_delimiter const&);
Chris@16:     };
Chris@16: 
Chris@16:     // If a surrounding verbatim[] directive was specified, the current
Chris@16:     // delimiter is of the type unused_delimiter. In this case we 
Chris@16:     // re-activate the delimiter which was active before the verbatim[]
Chris@16:     // directive.
Chris@16:     template <typename Delimiter, typename Default>
Chris@16:     inline Delimiter const& 
Chris@16:     get_delimiter(unused_delimiter<Delimiter> const& u, Default const&)
Chris@16:     {
Chris@16:         return u.delimiter;
Chris@16:     }
Chris@16: 
Chris@16:     // If no surrounding verbatim[] directive was specified we activate
Chris@16:     // a single space as the delimiter to use.
Chris@16:     template <typename Delimiter, typename Default>
Chris@16:     inline Default const& 
Chris@16:     get_delimiter(Delimiter const&, Default const& d)
Chris@16:     {
Chris@16:         return d;
Chris@16:     }
Chris@16: 
Chris@16: }}}}
Chris@16: 
Chris@16: #endif