1234567891011121314151617181920212223242526272829303132333435363738394041 |
- // 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/equal.hpp>
- #include <boost/hana/type.hpp>
- namespace hana = boost::hana;
- struct T { };
- int main() {
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make<hana::type_tag>(T{}),
- hana::decltype_(T{})
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make<hana::type_tag>(hana::type_c<T>),
- hana::decltype_(hana::type_c<T>)
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make_type(T{}),
- hana::make<hana::type_tag>(T{})
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::make_type(hana::type_c<T>),
- hana::make<hana::type_tag>(hana::type_c<T>)
- ));
- // make sure we don't read from non-constexpr variables
- {
- auto t = hana::type_c<T>;
- auto x = 1;
- constexpr auto r1 = hana::make<hana::type_tag>(t); (void)r1;
- constexpr auto r2 = hana::make<hana::type_tag>(x); (void)r2;
- }
- }
|