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/equal.hpp> | |
| 7 | #include <boost/hana/ext/std/integer_sequence.hpp> | |
| 8 | #include <boost/hana/ext/std/integral_constant.hpp> | |
| 9 | #include <boost/hana/find_if.hpp> | |
| 10 | #include <boost/hana/optional.hpp> | |
| 11 | ||
| 12 | #include <cstddef> | |
| 13 | #include <type_traits> | |
| 14 | #include <utility> | |
| 15 | namespace hana = boost::hana; | |
| 16 | ||
| 17 | ||
| 18 | struct undefined { }; | |
| 19 | ||
| 20 | ||
| 21 | int main() { | |
| 22 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 23 | hana::find_if(std::index_sequence<>{}, | |
| 24 | hana::equal.to(undefined{})), | |
| 25 | hana::nothing | |
| 26 | )); | |
| 27 | ||
| 28 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 29 | hana::find_if(std::index_sequence<0>{}, | |
| 30 | hana::equal.to(std::integral_constant<std::size_t, 0>{})), | |
| 31 | hana::just(std::integral_constant<std::size_t, 0>{}) | |
| 32 | )); | |
| 33 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 34 | hana::find_if(std::index_sequence<0>{}, | |
| 35 | hana::equal.to(std::integral_constant<std::size_t, 1>{})), | |
| 36 | hana::nothing | |
| 37 | )); | |
| 38 | ||
| 39 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 40 | hana::find_if(std::index_sequence<0, 1>{}, | |
| 41 | hana::equal.to(std::integral_constant<std::size_t, 0>{})), | |
| 42 | hana::just(std::integral_constant<std::size_t, 0>{}) | |
| 43 | )); | |
| 44 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 45 | hana::find_if(std::index_sequence<0, 1>{}, | |
| 46 | hana::equal.to(std::integral_constant<std::size_t, 1>{})), | |
| 47 | hana::just(std::integral_constant<std::size_t, 1>{}) | |
| 48 | )); | |
| 49 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 50 | hana::find_if(std::index_sequence<0, 1>{}, | |
| 51 | hana::equal.to(std::integral_constant<std::size_t, 2>{})), | |
| 52 | hana::nothing | |
| 53 | )); | |
| 54 | ||
| 55 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 56 | hana::find_if(std::index_sequence<0, 1, 2>{}, | |
| 57 | hana::equal.to(std::integral_constant<std::size_t, 0>{})), | |
| 58 | hana::just(std::integral_constant<std::size_t, 0>{}) | |
| 59 | )); | |
| 60 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 61 | hana::find_if(std::index_sequence<0, 1, 2>{}, | |
| 62 | hana::equal.to(std::integral_constant<std::size_t, 1>{})), | |
| 63 | hana::just(std::integral_constant<std::size_t, 1>{}) | |
| 64 | )); | |
| 65 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 66 | hana::find_if(std::index_sequence<0, 1, 2>{}, | |
| 67 | hana::equal.to(std::integral_constant<std::size_t, 2>{})), | |
| 68 | hana::just(std::integral_constant<std::size_t, 2>{}) | |
| 69 | )); | |
| 70 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 71 | hana::find_if(std::index_sequence<0, 1, 2>{}, | |
| 72 | hana::equal.to(std::integral_constant<std::size_t, 3>{})), | |
| 73 | hana::nothing | |
| 74 | )); | |
| 75 | ||
| 76 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 77 | hana::find_if(std::index_sequence<0, 1, 2, 3>{}, | |
| 78 | hana::equal.to(std::integral_constant<std::size_t, 0>{})), | |
| 79 | hana::just(std::integral_constant<std::size_t, 0>{}) | |
| 80 | )); | |
| 81 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 82 | hana::find_if(std::index_sequence<0, 1, 2, 3>{}, | |
| 83 | hana::equal.to(std::integral_constant<std::size_t, 1>{})), | |
| 84 | hana::just(std::integral_constant<std::size_t, 1>{}) | |
| 85 | )); | |
| 86 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 87 | hana::find_if(std::index_sequence<0, 1, 2, 3>{}, | |
| 88 | hana::equal.to(std::integral_constant<std::size_t, 2>{})), | |
| 89 | hana::just(std::integral_constant<std::size_t, 2>{}) | |
| 90 | )); | |
| 91 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 92 | hana::find_if(std::index_sequence<0, 1, 2, 3>{}, | |
| 93 | hana::equal.to(std::integral_constant<std::size_t, 3>{})), | |
| 94 | hana::just(std::integral_constant<std::size_t, 3>{}) | |
| 95 | )); | |
| 96 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 97 | hana::find_if(std::index_sequence<0, 1, 2, 3>{}, | |
| 98 | hana::equal.to(std::integral_constant<std::size_t, 4>{})), | |
| 99 | hana::nothing | |
| 100 | )); | |
| 101 | } |