/* @copyright Louis Dionne 2014 Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) */ #include int main() { using namespace boost::hana; using namespace boost::hana::operators; // This would be ambiguous if decltype(list()) is defined in the // `boost::hana::operators` namespace, like it was before. list(); }