| 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/map.hpp> |
| 6 | |
| 7 | #include <laws/base.hpp> |
| 8 | #include <support/minimal_product.hpp> |
| 9 | #include <type_traits> |
| 10 | #include <utility> |
| 11 | namespace hana = boost::hana; |
| 12 | |
| 13 | |
| 14 | template <typename ...Pairs> |
| 15 | struct check_map { |
| 16 | static_assert(std::is_same< |
| 17 | hana::map<Pairs...>, |
| 18 | decltype(hana::make_map(std::declval<Pairs>()...)) |
| 19 | >{}, "" ); |
| 20 | }; |
| 21 | |
| 22 | template <int i> |
| 23 | using pair = ::product_t<hana::test::ct_eq<i>, hana::test::ct_eq<-i>>; |
| 24 | |
| 25 | template struct check_map<>; |
| 26 | template struct check_map<pair<1>>; |
| 27 | template struct check_map<pair<1>, pair<2>>; |
| 28 | template struct check_map<pair<1>, pair<2>, pair<3>>; |
| 29 | template struct check_map<pair<1>, pair<2>, pair<3>, pair<4>>; |
| 30 | template struct check_map<pair<1>, pair<2>, pair<3>, pair<4>, pair<5>>; |
| 31 | template struct check_map<pair<1>, pair<2>, pair<3>, pair<4>, pair<5>, pair<6>>; |
| 32 | |
| 33 | int main() { } |
| 34 | |