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- // Copyright Louis Dionne 2013-2017
- // 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 <boost/hana/assert.hpp>
- #include <boost/hana/core/make.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/optional.hpp>
- #include <laws/base.hpp>
- namespace hana = boost::hana;
- using hana::test::ct_eq;
- int main() {
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make<hana::optional_tag>(),
- hana::nothing
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make<hana::optional_tag>(ct_eq<3>{}),
- hana::just(ct_eq<3>{})
- ));
- // Check that make_optional == make<optional_tag>
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make_optional(),
- hana::make<hana::optional_tag>()
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make_optional(ct_eq<3>{}),
- hana::make<hana::optional_tag>(ct_eq<3>{})
- ));
- }
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