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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/contains.hpp>
- #include <boost/hana/integral_constant.hpp>
- #include <boost/hana/keys.hpp>
- #include <boost/hana/map.hpp>
- #include <boost/hana/pair.hpp>
- #include <boost/hana/permutations.hpp>
- #include <boost/hana/tuple.hpp>
- #include <boost/hana/type.hpp>
- #include <string>
- namespace hana = boost::hana;
- using namespace std::literals;
- int main() {
- auto m = hana::make_map(
- hana::make_pair(hana::int_c<1>, "foobar"s),
- hana::make_pair(hana::type_c<void>, 1234)
- );
- // The order of the keys is unspecified.
- BOOST_HANA_CONSTANT_CHECK(
- hana::keys(m) ^hana::in^ hana::permutations(hana::make_tuple(hana::int_c<1>, hana::type_c<void>))
- );
- }
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