ceph/src/boost/boost/parameter/match.hpp

   1 // Copyright David Abrahams 2005.
   2 // Distributed under the Boost Software License, Version 1.0.
   3 // (See accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5
   6 #ifndef BOOST_PARAMETER_MATCH_DWA2005714_HPP
   7 #define BOOST_PARAMETER_MATCH_DWA2005714_HPP
   8
   9 #include <boost/parameter/config.hpp>
  10
  11 #if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
  12 #include <boost/parameter/aux_/void.hpp>
  13 #include <boost/preprocessor/arithmetic/sub.hpp>
  14 #include <boost/preprocessor/facilities/intercept.hpp>
  15 #include <boost/preprocessor/repetition/enum_trailing_params.hpp>
  16 #include <boost/preprocessor/seq/size.hpp>
  17
  18 #define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)                             \
  19     BOOST_PP_ENUM_TRAILING_PARAMS(                                           \
  20         BOOST_PP_SUB(                                                        \
  21             BOOST_PARAMETER_MAX_ARITY                                        \
  22           , BOOST_PP_SEQ_SIZE(ArgTypes)                                      \
  23         )                                                                    \
  24       , ::boost::parameter::void_ BOOST_PP_INTERCEPT                         \
  25     )
  26 /**/
  27 #else
  28 #define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)
  29 #endif
  30
  31 #include <boost/parameter/aux_/preprocessor/seq_enum.hpp>
  32
  33 //
  34 // Generates, e.g.
  35 //
  36 //    typename dfs_params::match<A1,A2>::type name = dfs_params()
  37 //
  38 // with workarounds for Borland compatibility.
  39 //
  40 #define BOOST_PARAMETER_MATCH(ParameterSpec, ArgTypes, name)                 \
  41     typename ParameterSpec::match<                                           \
  42         BOOST_PARAMETER_SEQ_ENUM(ArgTypes)                                   \
  43         BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)                             \
  44     >::type name = ParameterSpec()
  45 /**/
  46
  47 #endif  // include guard
  48