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/detail/canonical_constant.hpp>
6#include <boost/hana/tuple.hpp>
7
8#include <laws/comparable.hpp>
9#include <laws/constant.hpp>
10#include <laws/euclidean_ring.hpp>
11#include <laws/group.hpp>
12#include <laws/logical.hpp>
13#include <laws/monoid.hpp>
14#include <laws/orderable.hpp>
15#include <laws/ring.hpp>
16namespace hana = boost::hana;
17
18
19template <typename T, T v>
20struct canonical {
21 static constexpr T value = v;
22 using hana_tag = hana::detail::CanonicalConstant<T>;
23};
24
25int main() {
26 auto ints = hana::make_tuple(
27 canonical<int, -10>{}, canonical<int, -2>{}, canonical<int, 0>{},
28 canonical<int, 1>{}, canonical<int, 3>{}, canonical<int, 4>{}
29 );
30
31 auto bools = hana::make_tuple(canonical<bool, true>{}, canonical<bool, false>{});
32
33 // Constant
34 hana::test::TestConstant<hana::detail::CanonicalConstant<int>>{ints, hana::tuple_t<int, long, long long>};
35 hana::test::TestConstant<hana::detail::CanonicalConstant<bool>>{bools, hana::tuple_t<bool>};
36
37 // Monoid, Group, Ring, EuclideanRing
38 hana::test::TestMonoid<hana::detail::CanonicalConstant<int>>{ints};
39 hana::test::TestGroup<hana::detail::CanonicalConstant<int>>{ints};
40 hana::test::TestRing<hana::detail::CanonicalConstant<int>>{ints};
41 hana::test::TestEuclideanRing<hana::detail::CanonicalConstant<int>>{ints};
42
43 // Logical
44 {
45 auto ints = hana::make_tuple(
46 canonical<int, -2>{}, canonical<int, 0>{},
47 canonical<int, 1>{}, canonical<int, 3>{}
48 );
49 hana::test::TestLogical<hana::detail::CanonicalConstant<int>>{ints};
50 hana::test::TestLogical<hana::detail::CanonicalConstant<bool>>{bools};
51 }
52
53 // Comparable and Orderable
54 hana::test::TestComparable<hana::detail::CanonicalConstant<int>>{ints};
55 hana::test::TestOrderable<hana::detail::CanonicalConstant<int>>{ints};
56}
57

source code of boost/libs/hana/test/detail/canonical_constant/laws.cpp