| ////////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2005-2013. |
| // |
| // 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) |
| // |
| // See http://www.boost.org/libs/container for documentation. |
| // |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| #ifndef BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP |
| #define BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP |
| |
| #ifndef BOOST_CONFIG_HPP |
| # include <boost/config.hpp> |
| #endif |
| |
| #if defined(BOOST_HAS_PRAGMA_ONCE) |
| # pragma once |
| #endif |
| |
| #include <boost/container/detail/config_begin.hpp> |
| #include <boost/container/detail/workaround.hpp> |
| #include <boost/move/detail/type_traits.hpp> |
| #include <boost/intrusive/detail/mpl.hpp> |
| |
| #include <cstddef> |
| |
| namespace boost { |
| namespace container { |
| namespace dtl { |
| |
| using boost::move_detail::integral_constant; |
| using boost::move_detail::true_type; |
| using boost::move_detail::false_type; |
| using boost::move_detail::enable_if_c; |
| using boost::move_detail::enable_if; |
| using boost::move_detail::enable_if_convertible; |
| using boost::move_detail::disable_if_c; |
| using boost::move_detail::disable_if; |
| using boost::move_detail::disable_if_convertible; |
| using boost::move_detail::is_convertible; |
| using boost::move_detail::if_c; |
| using boost::move_detail::if_; |
| using boost::move_detail::identity; |
| using boost::move_detail::bool_; |
| using boost::move_detail::true_; |
| using boost::move_detail::false_; |
| using boost::move_detail::yes_type; |
| using boost::move_detail::no_type; |
| using boost::move_detail::bool_; |
| using boost::move_detail::true_; |
| using boost::move_detail::false_; |
| using boost::move_detail::unvoid_ref; |
| using boost::move_detail::and_; |
| using boost::move_detail::or_; |
| using boost::move_detail::not_; |
| using boost::move_detail::enable_if_and; |
| using boost::move_detail::disable_if_and; |
| using boost::move_detail::enable_if_or; |
| using boost::move_detail::disable_if_or; |
| using boost::move_detail::remove_const; |
| |
| template <class FirstType> |
| struct select1st |
| { |
| typedef FirstType type; |
| |
| template<class T> |
| BOOST_CONTAINER_FORCEINLINE const type& operator()(const T& x) const |
| { return x.first; } |
| |
| template<class T> |
| BOOST_CONTAINER_FORCEINLINE type& operator()(T& x) |
| { return const_cast<type&>(x.first); } |
| }; |
| |
| |
| template<typename T> |
| struct void_t { typedef void type; }; |
| |
| template <class T, class=void> |
| struct is_transparent_base |
| { |
| static const bool value = false; |
| }; |
| |
| template <class T> |
| struct is_transparent_base<T, typename void_t<typename T::is_transparent>::type> |
| { |
| static const bool value = true; |
| }; |
| |
| template <class T> |
| struct is_transparent |
| : is_transparent_base<T> |
| {}; |
| |
| template <typename C, class /*Dummy*/, typename R> |
| struct enable_if_transparent |
| : boost::move_detail::enable_if_c<dtl::is_transparent<C>::value, R> |
| {}; |
| |
| #ifndef BOOST_CONTAINER_NO_CXX17_CTAD |
| |
| // void_t (void_t for C++11) |
| template<typename...> using variadic_void_t = void; |
| |
| // Trait to detect Allocator-like types. |
| template<typename Allocator, typename = void> |
| struct is_allocator |
| { |
| static const bool value = false; |
| }; |
| |
| template <typename T> |
| T&& ctad_declval(); |
| |
| template<typename Allocator> |
| struct is_allocator < Allocator, |
| variadic_void_t< typename Allocator::value_type |
| , decltype(ctad_declval<Allocator&>().allocate(size_t{})) >> |
| { |
| static const bool value = true; |
| }; |
| |
| template<class T> |
| using require_allocator_t = typename enable_if_c<is_allocator<T>::value, T>::type; |
| |
| template<class T> |
| using require_nonallocator_t = typename enable_if_c<!is_allocator<T>::value, T>::type; |
| |
| #endif |
| |
| } //namespace dtl { |
| } //namespace container { |
| } //namespace boost { |
| |
| #include <boost/container/detail/config_end.hpp> |
| |
| #endif //#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP |
| |