1 // Copyright Louis Dionne 2013-2017 2 // Distributed under the Boost Software License, Version 1.0. 3 // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) 4 5 #include <boost/hana/core/default.hpp> 6 namespace hana = boost::hana; 7 8 9 template <typename T> 10 struct method_impl : hana::default_ { }; 11 12 template <> 13 struct method_impl<int> { }; 14 15 static_assert(hana::is_default<method_impl<void>>{}, ""); 16 static_assert(!hana::is_default<method_impl<int>>{}, ""); 17 main()18int main() { } 19