boost/type_traits/add_pointer.hpp
// (C) Copyright Steve Cleary, Beman Dawes, Howard Hinnant & John Maddock 2000.
// Use, modification and distribution are subject to 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/type_traits for most recent version including documentation.
#ifndef BOOST_TT_ADD_POINTER_HPP_INCLUDED
#define BOOST_TT_ADD_POINTER_HPP_INCLUDED
#include <boost/type_traits/remove_reference.hpp>
// should be the last #include
#include <boost/type_traits/detail/type_trait_def.hpp>
namespace boost {
namespace detail {
#if defined(__BORLANDC__) && (__BORLANDC__ < 0x5A0)
//
// For some reason this implementation stops Borlands compiler
// from dropping cv-qualifiers, it still fails with references
// to arrays for some reason though (shrug...) (JM 20021104)
//
template <typename T>
struct add_pointer_impl
{
typedef T* type;
};
template <typename T>
struct add_pointer_impl<T&>
{
typedef T* type;
};
template <typename T>
struct add_pointer_impl<T&const>
{
typedef T* type;
};
template <typename T>
struct add_pointer_impl<T&volatile>
{
typedef T* type;
};
template <typename T>
struct add_pointer_impl<T&const volatile>
{
typedef T* type;
};
#else
template <typename T>
struct add_pointer_impl
{
typedef typename remove_reference<T>::type no_ref_type;
typedef no_ref_type* type;
};
#endif
} // namespace detail
BOOST_TT_AUX_TYPE_TRAIT_DEF1(add_pointer,T,typename boost::detail::add_pointer_impl<T>::type)
} // namespace boost
#include <boost/type_traits/detail/type_trait_undef.hpp>
#endif // BOOST_TT_ADD_POINTER_HPP_INCLUDED