| ////////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2005-2012. |
| // (C) Copyright Gennaro Prota 2003 - 2004. |
| // |
| // 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. |
| // |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| #ifndef BOOST_INTERPROCESS_DETAIL_POINTER_TYPE_HPP |
| #define BOOST_INTERPROCESS_DETAIL_POINTER_TYPE_HPP |
| |
| #ifndef BOOST_CONFIG_HPP |
| # include <boost/config.hpp> |
| #endif |
| # |
| #if defined(BOOST_HAS_PRAGMA_ONCE) |
| # pragma once |
| #endif |
| |
| #include <boost/interprocess/detail/config_begin.hpp> |
| #include <boost/interprocess/detail/workaround.hpp> |
| #include <boost/interprocess/detail/type_traits.hpp> |
| |
| namespace boost { |
| namespace interprocess { |
| namespace ipcdetail { |
| |
| struct two {char _[2];}; |
| |
| namespace pointer_type_imp { |
| |
| template <class U> static two test(...); |
| template <class U> static char test(typename U::pointer* = 0); |
| |
| } //namespace pointer_type_imp { |
| |
| template <class T> |
| struct has_pointer_type |
| { |
| static const bool value = sizeof(pointer_type_imp::test<T>(0)) == 1; |
| }; |
| |
| namespace pointer_type_imp { |
| |
| template <class T, class D, bool = has_pointer_type<D>::value> |
| struct pointer_type |
| { |
| typedef typename D::pointer type; |
| }; |
| |
| template <class T, class D> |
| struct pointer_type<T, D, false> |
| { |
| typedef T* type; |
| }; |
| |
| } //namespace pointer_type_imp { |
| |
| template <class T, class D> |
| struct pointer_type |
| { |
| typedef typename pointer_type_imp::pointer_type<T, |
| typename remove_reference<D>::type>::type type; |
| }; |
| |
| } //namespace ipcdetail { |
| } //namespace interprocess { |
| } //namespace boost { |
| |
| #include <boost/interprocess/detail/config_end.hpp> |
| |
| #endif //#ifndef BOOST_INTERPROCESS_DETAIL_POINTER_TYPE_HPP |
| |