//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2005-2013.
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/container for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP
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#define BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/container/detail/config_begin.hpp>
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#include <boost/container/detail/workaround.hpp>
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#include <boost/move/detail/type_traits.hpp>
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#include <boost/intrusive/detail/mpl.hpp>
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#include <cstddef>
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namespace boost {
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namespace container {
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namespace dtl {
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using boost::move_detail::integral_constant;
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using boost::move_detail::true_type;
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using boost::move_detail::false_type;
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using boost::move_detail::enable_if_c;
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using boost::move_detail::enable_if;
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using boost::move_detail::enable_if_convertible;
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using boost::move_detail::disable_if_c;
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using boost::move_detail::disable_if;
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using boost::move_detail::disable_if_convertible;
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using boost::move_detail::is_convertible;
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using boost::move_detail::if_c;
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using boost::move_detail::if_;
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using boost::move_detail::identity;
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using boost::move_detail::bool_;
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using boost::move_detail::true_;
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using boost::move_detail::false_;
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using boost::move_detail::yes_type;
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using boost::move_detail::no_type;
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using boost::move_detail::bool_;
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using boost::move_detail::true_;
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using boost::move_detail::false_;
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using boost::move_detail::unvoid_ref;
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using boost::move_detail::and_;
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using boost::move_detail::or_;
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using boost::move_detail::not_;
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using boost::move_detail::enable_if_and;
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using boost::move_detail::disable_if_and;
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using boost::move_detail::enable_if_or;
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using boost::move_detail::disable_if_or;
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using boost::move_detail::remove_const;
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template <class FirstType>
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struct select1st
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{
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typedef FirstType type;
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template<class T>
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BOOST_CONTAINER_FORCEINLINE const type& operator()(const T& x) const
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{ return x.first; }
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template<class T>
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BOOST_CONTAINER_FORCEINLINE type& operator()(T& x)
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{ return const_cast<type&>(x.first); }
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};
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template<typename T>
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struct void_t { typedef void type; };
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template <class T, class=void>
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struct is_transparent_base
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{
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static const bool value = false;
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};
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template <class T>
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struct is_transparent_base<T, typename void_t<typename T::is_transparent>::type>
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{
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static const bool value = true;
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};
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template <class T>
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struct is_transparent
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: is_transparent_base<T>
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{};
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template <typename C, class /*Dummy*/, typename R>
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struct enable_if_transparent
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: boost::move_detail::enable_if_c<dtl::is_transparent<C>::value, R>
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{};
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#ifndef BOOST_CONTAINER_NO_CXX17_CTAD
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// void_t (void_t for C++11)
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template<typename...> using variadic_void_t = void;
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// Trait to detect Allocator-like types.
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template<typename Allocator, typename = void>
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struct is_allocator
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{
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static const bool value = false;
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};
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template <typename T>
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T&& ctad_declval();
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template<typename Allocator>
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struct is_allocator < Allocator,
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variadic_void_t< typename Allocator::value_type
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, decltype(ctad_declval<Allocator&>().allocate(size_t{})) >>
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{
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static const bool value = true;
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};
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template<class T>
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using require_allocator_t = typename enable_if_c<is_allocator<T>::value, T>::type;
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template<class T>
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using require_nonallocator_t = typename enable_if_c<!is_allocator<T>::value, T>::type;
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#endif
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} //namespace dtl {
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} //namespace container {
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} //namespace boost {
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#include <boost/container/detail/config_end.hpp>
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#endif //#ifndef BOOST_CONTAINER_CONTAINER_DETAIL_MPL_HPP
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