projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| b32b8144 | 1 | // Copyright Louis Dionne 2013-2017 |
| 7c673cae FG |
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/concept/logical.hpp> | |
| 7 | #include <boost/hana/equal.hpp> | |
| 8 | #include <boost/hana/eval_if.hpp> | |
| 9 | #include <boost/hana/functional/always.hpp> | |
| 10 | #include <boost/hana/not.hpp> | |
| 11 | #include <boost/hana/tuple.hpp> | |
| 12 | #include <boost/hana/while.hpp> | |
| 13 | ||
| 14 | #include <laws/logical.hpp> | |
| 15 | ||
| 16 | #include <vector> | |
| 17 | namespace hana = boost::hana; | |
| 18 | ||
| 19 | ||
| 20 | int main() { | |
| 21 | hana::test::TestLogical<bool>{hana::make_tuple(true, false)}; | |
| 22 | ||
| 23 | // eval_if | |
| 24 | { | |
| 25 | BOOST_HANA_CONSTEXPR_CHECK(hana::equal( | |
| 26 | hana::eval_if(true, hana::always(1), hana::always(2)), | |
| 27 | 1 | |
| 28 | )); | |
| 29 | ||
| 30 | BOOST_HANA_CONSTEXPR_CHECK(hana::equal( | |
| 31 | hana::eval_if(false, hana::always(1), hana::always(2)), | |
| 32 | 2 | |
| 33 | )); | |
| 34 | } | |
| 35 | ||
| 36 | // not_ | |
| 37 | { | |
| 38 | BOOST_HANA_CONSTEXPR_CHECK(hana::equal(hana::not_(true), false)); | |
| 39 | BOOST_HANA_CONSTEXPR_CHECK(hana::equal(hana::not_(false), true)); | |
| 40 | } | |
| 41 | ||
| 42 | // while_ | |
| 43 | { | |
| 44 | auto less_than = [](auto n) { | |
| 45 | return [n](auto v) { return v.size() < n; }; | |
| 46 | }; | |
| 47 | auto f = [](auto v) { | |
| 48 | v.push_back(v.size()); | |
| 49 | return v; | |
| 50 | }; | |
| 51 | ||
| 52 | BOOST_HANA_RUNTIME_CHECK(hana::equal( | |
| 53 | hana::while_(less_than(0u), std::vector<int>{}, f), | |
| 54 | std::vector<int>{} | |
| 55 | )); | |
| 56 | ||
| 57 | BOOST_HANA_RUNTIME_CHECK(hana::equal( | |
| 58 | hana::while_(less_than(1u), std::vector<int>{}, f), | |
| 59 | std::vector<int>{0} | |
| 60 | )); | |
| 61 | ||
| 62 | BOOST_HANA_RUNTIME_CHECK(hana::equal( | |
| 63 | hana::while_(less_than(2u), std::vector<int>{}, f), | |
| 64 | std::vector<int>{0, 1} | |
| 65 | )); | |
| 66 | ||
| 67 | BOOST_HANA_RUNTIME_CHECK(hana::equal( | |
| 68 | hana::while_(less_than(3u), std::vector<int>{}, f), | |
| 69 | std::vector<int>{0, 1, 2} | |
| 70 | )); | |
| 71 | ||
| 72 | BOOST_HANA_RUNTIME_CHECK(hana::equal( | |
| 73 | hana::while_(less_than(4u), std::vector<int>{}, f), | |
| 74 | std::vector<int>{0, 1, 2, 3} | |
| 75 | )); | |
| 76 | ||
| 77 | // Make sure it can be called with an lvalue state: | |
| 78 | std::vector<int> v{}; | |
| 79 | BOOST_HANA_RUNTIME_CHECK(hana::equal( | |
| 80 | hana::while_(less_than(4u), v, f), | |
| 81 | std::vector<int>{0, 1, 2, 3} | |
| 82 | )); | |
| 83 | } | |
| 84 | } |