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1 // Copyright Louis Dionne 2013-2017
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/eval_if.hpp>
8 #include <boost/hana/integral_constant.hpp>
9 #include <boost/hana/not.hpp>
10 #include <boost/hana/tuple.hpp>
11 
12 #include <laws/base.hpp>
13 #include <laws/logical.hpp>
14 namespace hana = boost::hana;
15 
16 
main()17 int main() {
18     // eval_if
19     {
20         auto t = [](auto) { return hana::test::ct_eq<3>{}; };
21         auto e = [](auto) { return hana::test::ct_eq<4>{}; };
22 
23         BOOST_HANA_CONSTANT_CHECK(hana::equal(
24             hana::eval_if(hana::true_c, t, e),
25             hana::test::ct_eq<3>{}
26         ));
27 
28         BOOST_HANA_CONSTANT_CHECK(hana::equal(
29             hana::eval_if(hana::false_c, t, e),
30             hana::test::ct_eq<4>{}
31         ));
32     }
33 
34     // not_
35     {
36         BOOST_HANA_CONSTANT_CHECK(hana::equal(
37             hana::not_(hana::true_c),
38             hana::false_c
39         ));
40 
41         BOOST_HANA_CONSTANT_CHECK(hana::equal(
42             hana::not_(hana::false_c),
43             hana::true_c
44         ));
45     }
46 
47     // laws
48     hana::test::TestLogical<hana::integral_constant_tag<int>>{hana::make_tuple(
49         hana::int_c<-2>, hana::int_c<0>, hana::int_c<1>, hana::int_c<3>
50     )};
51 
52     hana::test::TestLogical<hana::integral_constant_tag<bool>>{hana::make_tuple(
53         hana::false_c, hana::true_c
54     )};
55 }
56