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/* Copyright 2016 Joaquin M Lopez Munoz.
* 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/poly_collection for library home page.
*/
#ifndef BOOST_POLY_COLLECTION_DETAIL_IS_ACCEPTABLE_HPP
#define BOOST_POLY_COLLECTION_DETAIL_IS_ACCEPTABLE_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <type_traits>
namespace boost{
namespace poly_collection{
namespace detail{
/* This can be further specialized by Model when the std type trait classes
* fail to give the right info (as it can happen with class templates whose
* nominally existing operators do not compile for certain instantiations).
*/
template<typename T,typename Model,typename=void>
struct is_acceptable:std::integral_constant<
bool,
Model::template is_subtype<T>::value&&
std::is_move_constructible<typename std::decay<T>::type>::value&&
(std::is_move_assignable<typename std::decay<T>::type>::value||
std::is_nothrow_move_constructible<typename std::decay<T>::type>::value)
>{};
} /* namespace poly_collection::detail */
} /* namespace poly_collection */
} /* namespace boost */
#endif
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