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- #ifndef BOOST_TYPE_TRAITS_COPY_CV_HPP_INCLUDED
- #define BOOST_TYPE_TRAITS_COPY_CV_HPP_INCLUDED
- //
- // Copyright 2015 Peter Dimov
- //
- // 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
- //
- #include <boost/type_traits/is_const.hpp>
- #include <boost/type_traits/is_volatile.hpp>
- #include <boost/type_traits/add_const.hpp>
- #include <boost/type_traits/add_volatile.hpp>
- #include <boost/type_traits/conditional.hpp>
- namespace boost
- {
- template<class T, class U> struct copy_cv
- {
- private:
- typedef typename boost::conditional<boost::is_const<U>::value, typename boost::add_const<T>::type, T>::type CT;
- public:
- typedef typename boost::conditional<boost::is_volatile<U>::value, typename boost::add_volatile<CT>::type, CT>::type type;
- };
- #if !defined(BOOST_NO_CXX11_TEMPLATE_ALIASES)
- template <class T, class U> using copy_cv_t = typename copy_cv<T, U>::type;
- #endif
- } // namespace boost
- #endif // #ifndef BOOST_TYPE_TRAITS_COPY_CV_HPP_INCLUDED
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