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- // Copyright Louis Dionne 2013-2017
- // Distributed under the Boost Software License, Version 1.0.
- // (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
- #include <boost/hana/ext/std/integral_constant.hpp>
- #include <boost/hana/tuple.hpp>
- #include <boost/hana/value.hpp>
- #include <laws/constant.hpp>
- #include <type_traits>
- namespace hana = boost::hana;
- int main() {
- // value
- static_assert(hana::value(std::integral_constant<int, 0>{}) == 0, "");
- static_assert(hana::value(std::integral_constant<int, 1>{}) == 1, "");
- static_assert(hana::value(std::integral_constant<int, 3>{}) == 3, "");
- // laws
- hana::test::TestConstant<hana::ext::std::integral_constant_tag<int>>{
- hana::make_tuple(
- std::integral_constant<int, -10>{},
- std::integral_constant<int, -2>{},
- std::integral_constant<int, 0>{},
- std::integral_constant<int, 1>{},
- std::integral_constant<int, 3>{}
- ),
- hana::tuple_t<int, long, long long>
- };
- }
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