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3rdparty/boost_1_81_0/boost/phoenix/object/delete.hpp 1.31 KB
0b6a182c   Hu Chunming   添加无鉴权注册和注销
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  /*==============================================================================
      Copyright (c) 2001-2010 Joel de Guzman
      Copyright (c) 2010 Thomas Heller
  
      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_PHOENIX_OBJECT_DELETE_HPP
  #define BOOST_PHOENIX_OBJECT_DELETE_HPP
  
  #include <boost/phoenix/core/limits.hpp>
  #include <boost/phoenix/core/expression.hpp>
  #include <boost/phoenix/core/meta_grammar.hpp>
  #include <boost/phoenix/core/call.hpp>
  
  BOOST_PHOENIX_DEFINE_EXPRESSION(
      (boost)(phoenix)(delete_)
    , (meta_grammar)
  )
  
  namespace boost { namespace phoenix
  {
      struct delete_eval
      {
          typedef void result_type;
  
          template <typename P, typename Context>
          result_type
          operator()(P const& p, Context const &ctx) const
          {
              delete boost::phoenix::eval(p, ctx);
          }
      };
  
      template <typename Dummy>
      struct default_actions::when<rule::delete_, Dummy>
          : call<delete_eval>
      {};
  
      template <typename P>
      inline
      typename expression::delete_<P>::type const
      delete_(P const& p)
      {
          return expression::delete_<P>::make(p);
      }
  
  }}
  
  #endif