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3rdparty/boost_1_81_0/boost/parameter/match.hpp 1.81 KB
0b6a182c   Hu Chunming   添加无鉴权注册和注销
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  // Copyright David Abrahams 2005.
  // Distributed under the Boost Software License, Version 1.0.
  // (See accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt)
  
  #ifndef BOOST_PARAMETER_MATCH_DWA2005714_HPP
  #define BOOST_PARAMETER_MATCH_DWA2005714_HPP
  
  #include <boost/parameter/config.hpp>
  
  #if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564))
  #include <boost/parameter/aux_/void.hpp>
  #include <boost/preprocessor/arithmetic/sub.hpp>
  #include <boost/preprocessor/facilities/intercept.hpp>
  #include <boost/preprocessor/repetition/enum_trailing_params.hpp>
  #include <boost/preprocessor/seq/size.hpp>
  
  #define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)                             \
      BOOST_PP_ENUM_TRAILING_PARAMS(                                           \
          BOOST_PP_SUB(                                                        \
              BOOST_PARAMETER_MAX_ARITY                                        \
            , BOOST_PP_SEQ_SIZE(ArgTypes)                                      \
          )                                                                    \
        , ::boost::parameter::void_ BOOST_PP_INTERCEPT                         \
      )
  /**/
  #else
  #define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)
  #endif 
  
  #include <boost/parameter/aux_/preprocessor/seq_enum.hpp>
  
  //
  // Generates, e.g.
  //
  //    typename dfs_params::match<A1,A2>::type name = dfs_params()
  //
  // with workarounds for Borland compatibility.
  //
  #define BOOST_PARAMETER_MATCH(ParameterSpec, ArgTypes, name)                 \
      typename ParameterSpec::match<                                           \
          BOOST_PARAMETER_SEQ_ENUM(ArgTypes)                                   \
          BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)                             \
      >::type name = ParameterSpec()
  /**/
  
  #endif  // include guard