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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/detail/unpack_flatten.hpp>
- #include <boost/hana/equal.hpp>
- #include <boost/hana/tuple.hpp>
- #include <laws/base.hpp>
- namespace hana = boost::hana;
- using hana::test::ct_eq;
- int main() {
- constexpr auto f = hana::test::_injection<0>{};
- {
- auto tuples = hana::make_tuple();
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f()
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple());
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f()
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(), hana::make_tuple());
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f()
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(),
- hana::make_tuple(),
- hana::make_tuple());
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f()
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f(ct_eq<0>{})
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f(ct_eq<0>{}, ct_eq<1>{})
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(),
- hana::make_tuple(ct_eq<0>{}));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f(ct_eq<0>{})
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(),
- hana::make_tuple(ct_eq<0>{}, ct_eq<1>{}));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f(ct_eq<0>{}, ct_eq<1>{})
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}),
- hana::make_tuple(ct_eq<1>{}));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f(ct_eq<0>{}, ct_eq<1>{})
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}),
- hana::make_tuple(ct_eq<1>{}),
- hana::make_tuple(ct_eq<2>{}));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{})
- ));
- }
- {
- auto tuples = hana::make_tuple(hana::make_tuple(ct_eq<0>{}),
- hana::make_tuple(ct_eq<1>{}),
- hana::make_tuple(ct_eq<2>{}, ct_eq<3>{}));
- BOOST_HANA_CONSTANT_CHECK(hana::equal(
- hana::detail::unpack_flatten(tuples, f),
- f(ct_eq<0>{}, ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
- ));
- }
- }
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