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