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f51cf556 | 1 | // Copyright Louis Dionne 2013-2022 |
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/at_key.hpp> | |
7 | #include <boost/hana/equal.hpp> | |
8 | #include <boost/hana/map.hpp> | |
9 | ||
10 | #include <laws/base.hpp> | |
11 | #include <support/minimal_product.hpp> | |
12 | ||
13 | #include <utility> | |
14 | namespace hana = boost::hana; | |
15 | ||
16 | ||
17 | template <int i> | |
18 | auto key() { return hana::test::ct_eq<i>{}; } | |
19 | ||
20 | template <int i> | |
21 | auto val() { return hana::test::ct_eq<-i>{}; } | |
22 | ||
23 | template <int i, int j> | |
24 | auto p() { return ::minimal_product(key<i>(), val<j>()); } | |
25 | ||
26 | int main() { | |
27 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
28 | hana::at_key(hana::make_map(p<0, 0>()), key<0>()), | |
29 | val<0>() | |
30 | )); | |
31 | ||
32 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
33 | hana::at_key(hana::make_map(p<0, 0>(), p<1,1>()), key<0>()), | |
34 | val<0>() | |
35 | )); | |
36 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
37 | hana::at_key(hana::make_map(p<0, 0>(), p<1,1>()), key<1>()), | |
38 | val<1>() | |
39 | )); | |
40 | ||
41 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
42 | hana::at_key(hana::make_map(p<0, 0>(), p<1,1>(), p<2,2>()), key<0>()), | |
43 | val<0>() | |
44 | )); | |
45 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
46 | hana::at_key(hana::make_map(p<0, 0>(), p<1,1>(), p<2,2>()), key<1>()), | |
47 | val<1>() | |
48 | )); | |
49 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
50 | hana::at_key(hana::make_map(p<0, 0>(), p<1,1>(), p<2,2>()), key<2>()), | |
51 | val<2>() | |
52 | )); | |
53 | ||
54 | // check operators | |
55 | auto m = hana::make_map(p<2, 2>(), p<1, 1>()); | |
56 | auto const const_m = hana::make_map(p<2, 2>(), p<1, 1>()); | |
57 | BOOST_HANA_CONSTANT_CHECK(hana::equal(m[key<1>()], val<1>())); | |
58 | BOOST_HANA_CONSTANT_CHECK(hana::equal(const_m[key<1>()], val<1>())); | |
59 | BOOST_HANA_CONSTANT_CHECK(hana::equal(std::move(m)[key<1>()], val<1>())); | |
60 | } |