Searched refs:is_optional_constructible (Results 1 – 1 of 1) sorted by relevance
747 struct is_optional_constructible : boost::is_constructible<T, U> struct757 struct is_optional_constructible : boost::true_type struct821 … ,typename boost::enable_if< optional_detail::is_optional_constructible<T, U const&> >::type* = 0 in optional()838 … ,typename boost::enable_if< optional_detail::is_optional_constructible<T, U> >::type* = 0 in optional()