| #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 |
