ceph/src/boost/boost/phoenix/core/argument.hpp

   1 /*==============================================================================
   2     Copyright (c) 2001-2010 Joel de Guzman
   3     Copyright (c) 2010 Eric Niebler
   4     Copyright (c) 2010-2011 Thomas Heller
   5
   6     Distributed under the Boost Software License, Version 1.0. (See accompanying
   7     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   8 ==============================================================================*/
   9 #ifndef BOOST_PHOENIX_CORE_ARGUMENT_HPP
  10 #define BOOST_PHOENIX_CORE_ARGUMENT_HPP
  11
  12 #include <boost/phoenix/core/limits.hpp>
  13 #include <boost/phoenix/core/actor.hpp>
  14 #include <boost/phoenix/core/expression.hpp>
  15 #include <boost/phoenix/core/terminal.hpp>
  16 #include <boost/mpl/int.hpp>
  17
  18 namespace boost { namespace phoenix
  19 {
  20     ////////////////////////////////////////////////////////////////////////////
  21     //
  22     //  argument
  23     //
  24     //      function for evaluating argument placeholders like: _1
  25     //
  26     ////////////////////////////////////////////////////////////////////////////
  27
  28     template <int I>
  29     struct argument
  30         //: mpl::int_<I>
  31     {
  32         typedef typename mpl::int_<I>::value_type value_type;
  33         static const value_type value = mpl::int_<I>::value;
  34
  35         bool operator==(argument) const
  36         {
  37             return true;
  38         }
  39
  40         template <int I2>
  41         bool operator==(argument<I2>) const
  42         {
  43             return false;
  44         }
  45     };
  46 }}
  47
  48 namespace boost {
  49     template <int I>
  50     struct is_placeholder<phoenix::argument<I> >
  51         : mpl::int_<I>
  52     {};
  53 }
  54
  55 namespace boost { namespace phoenix
  56 {
  57     namespace expression
  58     {
  59         template <int I>
  60         struct argument
  61             : expression::terminal<phoenix::argument<I> >
  62         {
  63             typedef typename expression::terminal<phoenix::argument<I> >::type type;
  64             static const type make()
  65             {
  66                 type const e = {{{}}};
  67                 return e;
  68             }
  69         };
  70     }
  71
  72 #if !defined(BOOST_PHOENIX_DONT_USE_PREPROCESSED_FILES)
  73
  74 #include <boost/phoenix/core/detail/cpp03/preprocessed/argument.hpp>
  75
  76 #else
  77
  78 #if !defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
  79 #include <boost/phoenix/core/detail/argument.hpp>
  80 #else
  81
  82 #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
  83 #pragma wave option(preserve: 2, line: 0, output: "detail/cpp03/preprocessed/argument_predefined_" BOOST_PHOENIX_LIMIT_STR ".hpp")
  84 #endif
  85 /*==============================================================================
  86     Copyright (c) 2001-2010 Joel de Guzman
  87     Copyright (c) 2010-2011 Thomas Heller
  88
  89     Distributed under the Boost Software License, Version 1.0. (See accompanying
  90     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  91 ==============================================================================*/
  92
  93 #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
  94 #pragma wave option(preserve: 1)
  95 #endif
  96
  97 #ifdef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
  98 #undef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
  99 #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
 100 #endif
 101
 102 #include <boost/phoenix/core/detail/argument.hpp>
 103
 104 #ifndef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
 105 #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
 106 #undef BOOST_PHOENIX_NO_PREDEFINED_TERIMINALS_RESTORE
 107 #endif
 108
 109 #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
 110 #pragma wave option(output: null)
 111 #endif
 112
 113 #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
 114 #pragma wave option(preserve: 2, line: 0, output: "detail/cpp03/preprocessed/argument_no_predefined_" BOOST_PHOENIX_LIMIT_STR ".hpp")
 115 #endif
 116 /*==============================================================================
 117     Copyright (c) 2001-2010 Joel de Guzman
 118     Copyright (c) 2010-2011 Thomas Heller
 119
 120     Distributed under the Boost Software License, Version 1.0. (See accompanying
 121     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 122 ==============================================================================*/
 123
 124 #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
 125 #pragma wave option(preserve: 1)
 126 #endif
 127
 128 #ifndef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
 129 #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
 130 #define BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
 131 #endif
 132
 133 #include <boost/phoenix/core/detail/argument.hpp>
 134
 135 #ifndef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS_RESTORE
 136 #undef BOOST_PHOENIX_NO_PREDEFINED_TERMINALS
 137 #undef BOOST_PHOENIX_NO_PREDEFINED_TERIMINALS_RESTORE
 138 #endif
 139
 140 #if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
 141 #pragma wave option(output: null)
 142 #endif
 143
 144 #endif
 145
 146 #endif
 147
 148 }}
 149
 150 #endif