| 1 | // Copyright Louis Dionne 2013-2022 |
| 2 | // Distributed under the Boost Software License, Version 1.0. |
| 3 | // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) |
| 4 | |
| 5 | #include <boost/hana/assert.hpp> |
| 6 | #include <boost/hana/equal.hpp> |
| 7 | #include <boost/hana/intersection.hpp> |
| 8 | #include <boost/hana/map.hpp> |
| 9 | #include <boost/hana/string.hpp> |
| 10 | |
| 11 | #include <string> |
| 12 | namespace hana = boost::hana; |
| 13 | using namespace hana::literals; |
| 14 | |
| 15 | |
| 16 | static auto m1 = hana::make_map( |
| 17 | hana::make_pair(BOOST_HANA_STRING("key1" ), hana::type_c<std::string>), |
| 18 | hana::make_pair(BOOST_HANA_STRING("key2" ), hana::type_c<std::string>) |
| 19 | ); |
| 20 | |
| 21 | static auto m2 = hana::make_map( |
| 22 | hana::make_pair(BOOST_HANA_STRING("key3" ), hana::type_c<std::string>), |
| 23 | hana::make_pair(BOOST_HANA_STRING("key4" ), hana::type_c<std::string>), |
| 24 | hana::make_pair(BOOST_HANA_STRING("key5" ), hana::type_c<std::string>) |
| 25 | ); |
| 26 | |
| 27 | BOOST_HANA_CONSTANT_CHECK(hana::intersection(m1, m2) == hana::make_map()); |
| 28 | |
| 29 | static auto m3 = hana::make_map( |
| 30 | hana::make_pair(hana::type_c<int>, hana::int_c<1>), |
| 31 | hana::make_pair(hana::type_c<bool>, hana::bool_c<true>), |
| 32 | hana::make_pair(hana::type_c<std::string>, BOOST_HANA_STRING("hana" )), |
| 33 | hana::make_pair(hana::type_c<float>, hana::int_c<100>) |
| 34 | ); |
| 35 | |
| 36 | static auto m4 = hana::make_map( |
| 37 | hana::make_pair(hana::type_c<char>, hana::char_c<'c'>), |
| 38 | hana::make_pair(hana::type_c<bool>, hana::bool_c<false>), |
| 39 | hana::make_pair(hana::type_c<std::string>, BOOST_HANA_STRING("boost" )) |
| 40 | ); |
| 41 | |
| 42 | BOOST_HANA_CONSTANT_CHECK(hana::intersection(m3, m4) == hana::make_map( |
| 43 | hana::make_pair(hana::type_c<bool>, hana::bool_c<true>), |
| 44 | hana::make_pair(hana::type_c<std::string>, BOOST_HANA_STRING("hana" )) |
| 45 | )); |
| 46 | |
| 47 | int main() { } |
| 48 | |