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- #ifndef BOOST_TYPE_TRAITS_IS_LIST_CONSTRUCTIBLE_HPP_INCLUDED
- #define BOOST_TYPE_TRAITS_IS_LIST_CONSTRUCTIBLE_HPP_INCLUDED
- // Copyright 2017 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/config.hpp>
- #include <boost/config/workaround.hpp>
- #include <boost/type_traits/integral_constant.hpp>
- #include <boost/type_traits/declval.hpp>
- #include <boost/type_traits/is_complete.hpp>
- #include <boost/static_assert.hpp>
- namespace boost
- {
- #if defined(BOOST_NO_SFINAE_EXPR) || defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) || defined(BOOST_NO_CXX11_DECLTYPE) \
- || defined(BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX) || defined(BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS)\
- || BOOST_WORKAROUND(BOOST_GCC, < 40700)
- template<class T, class = void, class = void, class = void, class = void, class = void, class = void> struct is_list_constructible: false_type
- {
- BOOST_STATIC_ASSERT_MSG(boost::is_complete<T>::value, "Arguments to is_list_constructible must be complete types");
- };
- #else
- namespace type_traits_detail
- {
- template<class T, class... A, class = decltype( T{declval<A>()...} )> true_type is_list_constructible_impl( int );
- template<class T, class... A> false_type is_list_constructible_impl( ... );
- } // namespace type_traits_detail
- template<class T, class... A> struct is_list_constructible: decltype( type_traits_detail::is_list_constructible_impl<T, A...>(0) )
- {
- BOOST_STATIC_ASSERT_MSG(boost::is_complete<T>::value, "Arguments to is_list_constructible must be complete types");
- };
- #endif
- } // namespace boost
- #endif // #ifndef BOOST_TYPE_TRAITS_IS_LIST_CONSTRUCTIBLE_HPP_INCLUDED
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