51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
// 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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// silence MSVC warning C4512: assignment operator could not be generated
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BOOST_DELETED_FUNCTION(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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