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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/equal.hpp>
- #include <boost/hana/front.hpp>
- #include <boost/hana/integral_constant.hpp>
- #include <boost/hana/tuple.hpp>
- #include <boost/hana/type.hpp>
- namespace hana = boost::hana;
- struct x0;
- struct x1;
- struct x2;
- int main() {
- // tuple_t
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::front(hana::tuple_t<x0>),
- hana::type_c<x0>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::front(hana::tuple_t<x0, x1>),
- hana::type_c<x0>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::front(hana::tuple_t<x0, x1, x2>),
- hana::type_c<x0>
- ));
- // tuple_c
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::front(hana::tuple_c<int, 0>),
- hana::int_c<0>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::front(hana::tuple_c<int, 0, 1>),
- hana::int_c<0>
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::front(hana::tuple_c<int, 0, 1, 2>),
- hana::int_c<0>
- ));
- }
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