ceph/src/boost/libs/hana/test/detail/canonical_constant/laws.cpp

   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/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>
  16 namespace hana = boost::hana;
  17
  18
  19 template <typename T, T v>
  20 struct canonical {
  21     static constexpr T value = v;
  22     using hana_tag = hana::detail::CanonicalConstant<T>;
  23 };
  24
  25 int 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 }