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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/drop_front_exactly.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/ext/std/integer_sequence.hpp>
- #include <boost/hana/integral_constant.hpp>
- #include <utility>
- namespace hana = boost::hana;
- int main() {
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(std::index_sequence<0>{}),
- std::index_sequence<>{}
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(std::index_sequence<0, 1>{}),
- std::index_sequence<1>{}
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(std::index_sequence<0, 1, 2>{}),
- std::index_sequence<1, 2>{}
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(std::index_sequence<0, 1, 2>{}, hana::size_c<2>),
- std::index_sequence<2>{}
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(std::index_sequence<0, 1, 2, 3>{}, hana::size_c<2>),
- std::index_sequence<2, 3>{}
- ));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::drop_front_exactly(std::index_sequence<0, 1, 2, 3>{}, hana::size_c<3>),
- std::index_sequence<3>{}
- ));
- }
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