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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/at_key.hpp>
- #include <boost/hana/integral_constant.hpp>
- #include <boost/hana/map.hpp>
- #include <boost/hana/pair.hpp>
- #include <boost/hana/type.hpp>
- #include <string>
- namespace hana = boost::hana;
- int main() {
- auto m = hana::make_map(
- hana::make_pair(hana::type<int>{}, std::string{"int"}),
- hana::make_pair(hana::int_<3>{}, std::string{"3"})
- );
- BOOST_HANA_RUNTIME_CHECK(hana::at_key(m, hana::type<int>{}) == "int");
- // usage as operator[]
- BOOST_HANA_RUNTIME_CHECK(m[hana::type<int>{}] == "int");
- BOOST_HANA_RUNTIME_CHECK(m[hana::int_<3>{}] == "3");
- }
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