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3rdparty/boost_1_81_0/boost/flyweight/intermodule_holder.hpp 1.29 KB
63e88f80   Hu Chunming   提交三方库
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  /* Copyright 2006-2011 Joaquin M Lopez Munoz.
   * 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)
   *
   * See http://www.boost.org/libs/flyweight for library home page.
   */
  
  #ifndef BOOST_FLYWEIGHT_INTERMODULE_HOLDER_HPP
  #define BOOST_FLYWEIGHT_INTERMODULE_HOLDER_HPP
  
  #if defined(_MSC_VER)
  #pragma once
  #endif
  
  #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
  #include <boost/flyweight/holder_tag.hpp>
  #include <boost/flyweight/intermodule_holder_fwd.hpp>
  #include <boost/interprocess/detail/intermodule_singleton.hpp>
  #include <boost/mpl/aux_/lambda_support.hpp>
  
  /* intermodule_holder_class guarantees a unique instance across all dynamic
   * modules of a program.
   */
  
  namespace boost{
  
  namespace flyweights{
  
  template<typename C>
  struct intermodule_holder_class:
    interprocess::ipcdetail::intermodule_singleton<C,true>,
    holder_marker
  {
    typedef intermodule_holder_class type;
    BOOST_MPL_AUX_LAMBDA_SUPPORT(1,intermodule_holder_class,(C))
  };
  
  /* intermodule_holder_class specifier */
  
  struct intermodule_holder:holder_marker
  {
    template<typename C>
    struct apply
    {
      typedef intermodule_holder_class<C> type;
    };
  };
  
  } /* namespace flyweights */
  
  } /* namespace boost */
  
  #endif