| 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/fold_right.hpp> |
| 6 | #include <boost/hana/optional.hpp> |
| 7 | #include <boost/hana/plus.hpp> |
| 8 | namespace hana = boost::hana; |
| 9 | |
| 10 | |
| 11 | static_assert(hana::fold_right(hana::nothing, 1, hana::plus) == 1, ""); |
| 12 | static_assert(hana::fold_right(hana::just(4), 1, hana::plus) == 5, ""); |
| 13 | |
| 14 | int main() { } |
| 15 |