version_type.hpp - DriveHQ Cloud IT/Storage service

Yes No

Do you want to visit DriveHQ English website?

version_type.hpp - Hosted on DriveHQ Cloud IT Platform

返回上层目录
上传
下载
共享
发布
新建文件夹
新建文件
复制
剪切
删除
粘贴
评论
升级服务

路径: \\game3dprogramming\materials\GameFactory\GameFactoryDemo\references\boost_1_35_0\boost\interprocess\detail\version_type.hpp

旋转

特效

属性

历史版本

//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2005-2008. 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/interprocess for documentation.
//
//////////////////////////////////////////////////////////////////////////////
//
//       This code comes from N1953 document by Howard E. Hinnant
//
//////////////////////////////////////////////////////////////////////////////


#ifndef BOOST_INTERPROCESS_DETAIL_VERSION_TYPE_HPP
#define BOOST_INTERPROCESS_DETAIL_VERSION_TYPE_HPP

#include <boost/interprocess/detail/mpl.hpp>
#include <boost/interprocess/detail/type_traits.hpp>


namespace boost{
namespace interprocess{
namespace detail{

//using namespace boost;

template <class T, unsigned V>
struct version_type
    : public detail::integral_constant<unsigned, V>
{
    typedef T type;

    version_type(const version_type<T, 0>&);
};

namespace impl{

template <class T, 
          bool = detail::is_convertible<version_type<T, 0>, typename T::version>::value>
struct extract_version
{
   static const unsigned value = 1;
};

template <class T>
struct extract_version<T, true>
{
   static const unsigned value = T::version::value;
};

template <class T>
struct has_version
{
   private:
   struct two {char _[2];};
   template <class U> static two test(...);
   template <class U> static char test(const typename U::version*);
   public:
   static const bool value = sizeof(test<T>(0)) == 1;
   void dummy(){}
};

template <class T, bool = has_version<T>::value>
struct version
{
   static const unsigned value = 1;
};

template <class T>
struct version<T, true>
{
   static const unsigned value = extract_version<T>::value;
};

}  //namespace impl

template <class T>
struct version
   : public detail::integral_constant<unsigned, impl::version<T>::value>
{
};

}  //namespace detail{
}  //namespace interprocess{
}  //namespace boost{

#endif   //#define BOOST_INTERPROCESS_DETAIL_VERSION_TYPE_HPP

version_type.hpp

网页地址
文件地址

Would you like to comment?