| 1 | // Copyright Louis Dionne 2013-2022 |
|---|---|
| 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/duplicate.hpp> |
| 6 | #include <boost/hana/extract.hpp> |
| 7 | #include <boost/hana/lazy.hpp> |
| 8 | namespace hana = boost::hana; |
| 9 | |
| 10 | |
| 11 | int main() { |
| 12 | constexpr auto very_lazy = hana::duplicate(hana::make_lazy(3)); |
| 13 | static_assert(hana::extract(hana::extract(very_lazy)) == 3, ""); |
| 14 | } |
| 15 |