85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
// Copyright Louis Dionne 2013-2017
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
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#include <boost/hana/assert.hpp>
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#include <boost/hana/contains.hpp>
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#include <boost/hana/core/to.hpp>
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#include <boost/hana/equal.hpp>
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#include <boost/hana/permutations.hpp>
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#include <boost/hana/set.hpp>
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#include <laws/base.hpp>
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#include <support/seq.hpp>
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namespace hana = boost::hana;
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using hana::test::ct_eq;
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int main() {
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auto sequence = ::seq;
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auto foldable = ::seq;
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using S = ::Seq;
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// Set -> Sequence
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{
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auto check = [=](auto ...xs) {
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BOOST_HANA_CONSTANT_CHECK(hana::contains(
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hana::permutations(sequence(xs...)),
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hana::to<S>(hana::make_set(xs...))
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));
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};
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check();
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check(ct_eq<1>{});
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check(ct_eq<1>{}, ct_eq<2>{});
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check(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{});
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check(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<4>{});
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}
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// Foldable -> Set
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{
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable()),
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hana::make_set()
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable(ct_eq<1>{})),
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hana::make_set(ct_eq<1>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable(ct_eq<1>{}, ct_eq<1>{})),
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hana::make_set(ct_eq<1>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable(ct_eq<1>{}, ct_eq<2>{})),
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hana::make_set(ct_eq<1>{}, ct_eq<2>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable(ct_eq<1>{}, ct_eq<2>{}, ct_eq<1>{})),
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hana::make_set(ct_eq<1>{}, ct_eq<2>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable(ct_eq<1>{}, ct_eq<2>{}, ct_eq<2>{})),
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hana::make_set(ct_eq<1>{}, ct_eq<2>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})),
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hana::make_set(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
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));
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to<hana::set_tag>(foldable(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<2>{}, ct_eq<1>{})),
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hana::make_set(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{})
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));
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}
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// to_set == to<set_tag>
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{
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BOOST_HANA_CONSTANT_CHECK(hana::equal(
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hana::to_set(foldable(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<2>{}, ct_eq<1>{})),
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hana::to<hana::set_tag>(foldable(ct_eq<1>{}, ct_eq<2>{}, ct_eq<3>{}, ct_eq<2>{}, ct_eq<1>{}))
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));
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}
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}
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