projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| b32b8144 | 1 | // Copyright Louis Dionne 2013-2017 |
| 7c673cae FG |
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/erase_key.hpp> | |
| 8 | #include <boost/hana/map.hpp> | |
| 9 | ||
| 10 | #include <laws/base.hpp> | |
| 11 | #include <support/minimal_product.hpp> | |
| 12 | namespace hana = boost::hana; | |
| 13 | ||
| 14 | ||
| 15 | template <int i> | |
| 16 | auto key() { return hana::test::ct_eq<i>{}; } | |
| 17 | ||
| 18 | template <int i> | |
| 19 | auto val() { return hana::test::ct_eq<-i>{}; } | |
| 20 | ||
| 21 | template <int i, int j> | |
| 22 | auto p() { return ::minimal_product(key<i>(), val<j>()); } | |
| 23 | ||
| 24 | struct undefined { }; | |
| 25 | ||
| 26 | int main() { | |
| 27 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 28 | hana::erase_key(hana::make_map(), undefined{}), | |
| 29 | hana::make_map() | |
| 30 | )); | |
| 31 | ||
| 32 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 33 | hana::erase_key(hana::make_map(p<1, 1>()), key<1>()), | |
| 34 | hana::make_map() | |
| 35 | )); | |
| 36 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 37 | hana::erase_key(hana::make_map(p<1, 1>()), key<99>()), | |
| 38 | hana::make_map(p<1, 1>()) | |
| 39 | )); | |
| 40 | ||
| 41 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 42 | hana::erase_key(hana::make_map(p<1, 1>(), p<2, 2>()), key<99>()), | |
| 43 | hana::make_map(p<1, 1>(), p<2, 2>()) | |
| 44 | )); | |
| 45 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 46 | hana::erase_key(hana::make_map(p<1, 1>(), p<2, 2>()), key<1>()), | |
| 47 | hana::make_map(p<2, 2>()) | |
| 48 | )); | |
| 49 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 50 | hana::erase_key(hana::make_map(p<1, 1>(), p<2, 2>()), key<2>()), | |
| 51 | hana::make_map(p<1, 1>()) | |
| 52 | )); | |
| 53 | ||
| 54 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 55 | hana::erase_key(hana::make_map(p<1, 1>(), p<2, 2>(), p<3, 3>()), key<99>()), | |
| 56 | hana::make_map(p<1, 1>(), p<2, 2>(), p<3, 3>()) | |
| 57 | )); | |
| 58 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 59 | hana::erase_key(hana::make_map(p<1, 1>(), p<2, 2>(), p<3, 3>()), key<1>()), | |
| 60 | hana::make_map(p<2, 2>(), p<3, 3>()) | |
| 61 | )); | |
| 62 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 63 | hana::erase_key(hana::make_map(p<1, 1>(), p<2, 2>(), p<3, 3>()), key<2>()), | |
| 64 | hana::make_map(p<1, 1>(), p<3, 3>()) | |
| 65 | )); | |
| 66 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 67 | hana::erase_key(hana::make_map(p<1, 1>(), p<2, 2>(), p<3, 3>()), key<3>()), | |
| 68 | hana::make_map(p<1, 1>(), p<2, 2>()) | |
| 69 | )); | |
| 70 | } |