ceph/src/boost/libs/spirit/include/boost/spirit/home/karma/detail/generate_to.hpp

   1 //  Copyright (c) 2001-2011 Hartmut Kaiser
   2 //
   3 //  Distributed under the Boost Software License, Version 1.0. (See accompanying
   4 //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #if !defined(BOOST_SPIRIT_KARMA_DETAIL_GENERATE_TO_FEB_20_2007_0417PM)
   7 #define BOOST_SPIRIT_KARMA_DETAIL_GENERATE_TO_FEB_20_2007_0417PM
   8
   9 #if defined(_MSC_VER)
  10 #pragma once
  11 #endif
  12
  13 #include <boost/spirit/home/support/unused.hpp>
  14 #include <boost/spirit/home/support/char_class.hpp>
  15 #include <boost/spirit/home/karma/detail/output_iterator.hpp>
  16
  17 namespace boost { namespace spirit { namespace karma { namespace detail
  18 {
  19     ///////////////////////////////////////////////////////////////////////////
  20     //  These utility functions insert the given parameter into the supplied
  21     //  output iterator.
  22     //  If the attribute is spirit's unused_type, this is a no_op.
  23     ///////////////////////////////////////////////////////////////////////////
  24     template <
  25         typename OutputIterator, typename Attribute, typename CharEncoding
  26       , typename Tag>
  27     inline bool
  28     generate_to(OutputIterator& sink, Attribute const& p, CharEncoding, Tag)
  29     {
  30         *sink = spirit::char_class::convert<CharEncoding>::to(Tag(), p);
  31         ++sink;
  32         return detail::sink_is_good(sink);
  33     }
  34
  35     template <typename OutputIterator, typename Attribute>
  36     inline bool
  37     generate_to(OutputIterator& sink, Attribute const& p, unused_type, unused_type)
  38     {
  39         *sink = p;
  40         ++sink;
  41         return detail::sink_is_good(sink);
  42     }
  43
  44     template <typename OutputIterator, typename CharEncoding, typename Tag>
  45     inline bool generate_to(OutputIterator&, unused_type, CharEncoding, Tag)
  46     {
  47         return true;
  48     }
  49
  50     template <typename OutputIterator, typename Attribute>
  51     inline bool
  52     generate_to(OutputIterator& sink, Attribute const& p)
  53     {
  54         *sink = p;
  55         ++sink;
  56         return detail::sink_is_good(sink);
  57     }
  58
  59     template <typename OutputIterator>
  60     inline bool generate_to(OutputIterator&, unused_type)
  61     {
  62         return true;
  63     }
  64
  65 }}}}   // namespace boost::spirit::karma::detail
  66
  67 #endif  // KARMA_CORE_DETAIL_INSERT_TO_HPP