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/integral_constant.hpp>
6 #include <boost/hana/tuple.hpp>
7 #include <boost/hana/value.hpp>
8
9 #include <laws/constant.hpp>
10 namespace hana = boost::hana;
11
12
main()13 int main() {
14 // value
15 static_assert(hana::value(hana::integral_c<int, 0>) == 0, "");
16 static_assert(hana::value(hana::integral_c<int, 1>) == 1, "");
17
18
19 // laws
20 hana::test::TestConstant<hana::integral_constant_tag<int>>{
21 hana::make_tuple(
22 hana::int_c<-10>,
23 hana::int_c<-2>,
24 hana::int_c<0>,
25 hana::int_c<1>,
26 hana::int_c<3>,
27 hana::int_c<4>
28 ),
29 hana::tuple_t<int, long, long long>
30 };
31
32 hana::test::TestConstant<hana::integral_constant_tag<bool>>{
33 hana::make_tuple(
34 hana::true_c, hana::false_c
35 ),
36 hana::tuple_t<bool>
37 };
38 }
39