boost/type_traits/remove_volatile.hpp
// (C) Copyright Dave Abrahams, 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_REMOVE_VOLATILE_HPP_INCLUDED
#define BOOST_TT_REMOVE_VOLATILE_HPP_INCLUDED
#include <boost/type_traits/is_const.hpp>
#include <boost/type_traits/broken_compiler_spec.hpp>
#include <boost/type_traits/detail/cv_traits_impl.hpp>
#include <boost/config.hpp>
#include <boost/detail/workaround.hpp>
#include <cstddef>
#if BOOST_WORKAROUND(BOOST_MSVC,<=1300)
#include <boost/type_traits/msvc/remove_volatile.hpp>
#endif
// should be the last #include
#include <boost/type_traits/detail/type_trait_def.hpp>
namespace boost {
#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
namespace detail {
template <typename T, bool is_const>
struct remove_volatile_helper
{
typedef T type;
};
template <typename T>
struct remove_volatile_helper<T,true>
{
typedef T const type;
};
template <typename T>
struct remove_volatile_impl
{
typedef typename remove_volatile_helper<
typename cv_traits_imp<T*>::unqualified_type
, ::boost::is_const<T>::value
>::type type;
};
//
// We can't filter out rvalue_references at the same level as
// references or we get ambiguities from msvc:
//
#ifndef BOOST_NO_RVALUE_REFERENCES
template <typename T>
struct remove_volatile_impl<T&&>
{
typedef T&& type;
};
#endif
} // namespace detail
// * convert a type T to a non-volatile type - remove_volatile<T>
BOOST_TT_AUX_TYPE_TRAIT_DEF1(remove_volatile,T,typename boost::detail::remove_volatile_impl<T>::type)
BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_1(typename T,remove_volatile,T&,T&)
#if !defined(BOOST_NO_ARRAY_TYPE_SPECIALIZATIONS)
BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_2(typename T,std::size_t N,remove_volatile,T volatile[N],T type[N])
BOOST_TT_AUX_TYPE_TRAIT_PARTIAL_SPEC1_2(typename T,std::size_t N,remove_volatile,T const volatile[N],T const type[N])
#endif
#elif !BOOST_WORKAROUND(BOOST_MSVC,<=1300)
BOOST_TT_AUX_TYPE_TRAIT_DEF1(remove_volatile,T,typename boost::detail::remove_volatile_impl<T>::type)
#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
} // namespace boost
#include <boost/type_traits/detail/type_trait_undef.hpp>
#endif // BOOST_TT_REMOVE_VOLATILE_HPP_INCLUDED