////////////////////////////////////////////////////////////////////////////// | |
// | |
// (C) Copyright Ion Gaztanaga 2005-2009. | |
// (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 | |
#if (defined _MSC_VER) && (_MSC_VER >= 1200) | |
# 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 detail { | |
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 detail::remove_reference<D>::type>::type type; | |
}; | |
} //namespace detail { | |
} //namespace interprocess { | |
} //namespace boost { | |
#include <boost/interprocess/detail/config_end.hpp> | |
#endif //#ifndef BOOST_INTERPROCESS_DETAIL_POINTER_TYPE_HPP | |