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/ext/boost/mpl/vector.hpp> | |
| 6 | ||
| 7 | #include <boost/hana/assert.hpp> | |
| 8 | #include <boost/hana/drop_front_exactly.hpp> | |
| 9 | #include <boost/hana/equal.hpp> | |
| 10 | #include <boost/hana/front.hpp> | |
| 11 | #include <boost/hana/is_empty.hpp> | |
| 12 | #include <boost/hana/not.hpp> | |
| 13 | #include <boost/hana/tuple.hpp> | |
| 14 | #include <boost/hana/type.hpp> | |
| 15 | ||
| 16 | #include <laws/iterable.hpp> | |
| 17 | ||
| 18 | #include <boost/mpl/vector.hpp> | |
| 19 | namespace hana = boost::hana; | |
| 20 | namespace mpl = boost::mpl; | |
| 21 | ||
| 22 | ||
| 23 | struct t1; struct t2; struct t3; struct t4; | |
| 24 | ||
| 25 | int main() { | |
| 26 | // front | |
| 27 | { | |
| 28 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 29 | hana::front(mpl::vector<t1>{}), | |
| 30 | hana::type_c<t1> | |
| 31 | )); | |
| 32 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 33 | hana::front(mpl::vector<t1, t2>{}), | |
| 34 | hana::type_c<t1> | |
| 35 | )); | |
| 36 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 37 | hana::front(mpl::vector<t1, t2, t3>{}), | |
| 38 | hana::type_c<t1> | |
| 39 | )); | |
| 40 | } | |
| 41 | ||
| 42 | // drop_front_exactly | |
| 43 | { | |
| 44 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 45 | hana::drop_front_exactly(mpl::vector<t1>{}), | |
| 46 | mpl::vector<>{} | |
| 47 | )); | |
| 48 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 49 | hana::drop_front_exactly(mpl::vector<t1, t2>{}), | |
| 50 | mpl::vector<t2>{} | |
| 51 | )); | |
| 52 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 53 | hana::drop_front_exactly(mpl::vector<t1, t2, t3>{}), | |
| 54 | mpl::vector<t2, t3>{} | |
| 55 | )); | |
| 56 | ||
| 57 | ||
| 58 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 59 | hana::drop_front_exactly(mpl::vector<t1, t2, t3>{}, hana::size_c<2>), | |
| 60 | mpl::vector<t3>{} | |
| 61 | )); | |
| 62 | ||
| 63 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 64 | hana::drop_front_exactly(mpl::vector<t1, t2, t3, t4>{}, hana::size_c<2>), | |
| 65 | mpl::vector<t3, t4>{} | |
| 66 | )); | |
| 67 | ||
| 68 | BOOST_HANA_CONSTANT_CHECK(hana::equal( | |
| 69 | hana::drop_front_exactly(mpl::vector<t1, t2, t3, t4>{}, hana::size_c<3>), | |
| 70 | mpl::vector<t4>{} | |
| 71 | )); | |
| 72 | } | |
| 73 | ||
| 74 | // is_empty | |
| 75 | { | |
| 76 | BOOST_HANA_CONSTANT_CHECK(hana::is_empty(mpl::vector<>{})); | |
| 77 | BOOST_HANA_CONSTANT_CHECK(hana::is_empty(mpl::vector0<>{})); | |
| 78 | ||
| 79 | BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(mpl::vector<t1>{}))); | |
| 80 | BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(mpl::vector1<t1>{}))); | |
| 81 | ||
| 82 | BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(mpl::vector<t1, t2>{}))); | |
| 83 | BOOST_HANA_CONSTANT_CHECK(hana::not_(hana::is_empty(mpl::vector2<t1, t2>{}))); | |
| 84 | } | |
| 85 | ||
| 86 | // laws | |
| 87 | auto vectors = hana::make_tuple( | |
| 88 | mpl::vector<>{} | |
| 89 | , mpl::vector<t1>{} | |
| 90 | , mpl::vector<t1, t2>{} | |
| 91 | , mpl::vector<t1, t2, t3>{} | |
| 92 | , mpl::vector<t1, t2, t3, t4>{} | |
| 93 | ); | |
| 94 | hana::test::TestIterable<hana::ext::boost::mpl::vector_tag>{vectors}; | |
| 95 | } |