[/ Copyright 2015 John Maddock. 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). ] [section:is_default_constructible is_default_constructible] template struct is_default_constructible : public __tof {}; __inherit If `T` can be default-constructed then inherits from __true_type, otherwise inherits from __false_type. Type `T` must be a complete type. __compat This trait requires the C++11 feature `decltype` support for full support. While there is some fallback code for cases where this is not the case, the trait should really be considered broken in that case. __header ` #include ` or ` #include ` [endsect]