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- // (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_REMOVE_REFERENCE_HPP_INCLUDED
- #define BOOST_TT_REMOVE_REFERENCE_HPP_INCLUDED
- #include <boost/config.hpp>
- #include <boost/detail/workaround.hpp>
- namespace boost {
- namespace detail{
- //
- // We can't filter out rvalue_references at the same level as
- // references or we get ambiguities from msvc:
- //
- template <class T>
- struct remove_rvalue_ref
- {
- typedef T type;
- };
- #ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
- template <class T>
- struct remove_rvalue_ref<T&&>
- {
- typedef T type;
- };
- #endif
- } // namespace detail
- template <class T> struct remove_reference{ typedef typename boost::detail::remove_rvalue_ref<T>::type type; };
- template <class T> struct remove_reference<T&>{ typedef T type; };
- #if defined(BOOST_ILLEGAL_CV_REFERENCES)
- // these are illegal specialisations; cv-qualifies applied to
- // references have no effect according to [8.3.2p1],
- // C++ Builder requires them though as it treats cv-qualified
- // references as distinct types...
- template <class T> struct remove_reference<T&const>{ typedef T type; };
- template <class T> struct remove_reference<T&volatile>{ typedef T type; };
- template <class T> struct remove_reference<T&const volatile>{ typedef T type; };
- #endif
- #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
- template <class T> using remove_reference_t = typename remove_reference<T>::type;
- #endif
- } // namespace boost
- #endif // BOOST_TT_REMOVE_REFERENCE_HPP_INCLUDED
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