| 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/assert.hpp> |
| 6 | #include <boost/hana/equal.hpp> |
| 7 | #include <boost/hana/optional.hpp> |
| 8 | #include <boost/hana/transform.hpp> |
| 9 | |
| 10 | #include <laws/base.hpp> |
| 11 | namespace hana = boost::hana; |
| 12 | using hana::test::ct_eq; |
| 13 | |
| 14 | |
| 15 | struct undefined { }; |
| 16 | |
| 17 | int main() { |
| 18 | hana::test::_injection<0> f{}; |
| 19 | |
| 20 | BOOST_HANA_CONSTANT_CHECK(hana::equal( |
| 21 | hana::transform(hana::nothing, undefined{}), |
| 22 | hana::nothing |
| 23 | )); |
| 24 | |
| 25 | BOOST_HANA_CONSTANT_CHECK(hana::equal( |
| 26 | hana::transform(hana::just(ct_eq<3>{}), f), |
| 27 | hana::just(f(ct_eq<3>{})) |
| 28 | )); |
| 29 | } |
| 30 |