ceph/src/boost/boost/phoenix/operator/if_else.hpp

   1 /*==============================================================================
   2     Copyright (c) 2001-2010 Joel de Guzman
   3     Copyright (c) 2010 Thomas Heller
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ==============================================================================*/
   8 #ifndef BOOST_PHOENIX_OPERATOR_IF_ELSE_HPP
   9 #define BOOST_PHOENIX_OPERATOR_IF_ELSE_HPP
  10
  11 #include <boost/phoenix/core/limits.hpp>
  12 #include <boost/phoenix/core/meta_grammar.hpp>
  13 #include <boost/phoenix/core/expression.hpp>
  14 #include <boost/proto/operators.hpp>
  15
  16 namespace boost { namespace phoenix
  17 {
  18     namespace tag
  19     {
  20         typedef proto::tag::if_else_ if_else_operator;
  21     }
  22
  23     namespace expression
  24     {
  25         template <typename A0, typename A1, typename A2>
  26         struct if_else_operator
  27             : expr<tag::if_else_operator, A0, A1, A2>
  28         {};
  29     }
  30
  31     namespace rule
  32     {
  33         struct if_else_operator
  34             : expression::if_else_operator<
  35                 meta_grammar
  36               , meta_grammar
  37               , meta_grammar
  38             >
  39         {};
  40     }
  41
  42     template <typename Dummy>
  43     struct meta_grammar::case_<tag::if_else_operator, Dummy>
  44         : enable_rule<rule::if_else_operator, Dummy>
  45     {};
  46
  47     using proto::if_else;
  48 }}
  49
  50 #endif