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/tuple.hpp> | |
| 7 | namespace hana = boost::hana; | |
| 8 | ||
| 9 | ||
| 10 | struct A { | |
| 11 | int id_; | |
| 12 | constexpr A(int i) : id_(i) {} | |
| 13 | friend constexpr bool operator==(const A& x, const A& y) | |
| 14 | { return x.id_ == y.id_; } | |
| 15 | }; | |
| 16 | ||
| 17 | struct B { | |
| 18 | int id_; | |
| 19 | explicit B(int i) : id_(i) {} | |
| 20 | }; | |
| 21 | ||
| 22 | struct C { | |
| 23 | int id_; | |
| 24 | constexpr explicit C(int i) : id_(i) {} | |
| 25 | friend constexpr bool operator==(const C& x, const C& y) | |
| 26 | { return x.id_ == y.id_; } | |
| 27 | }; | |
| 28 | ||
| 29 | struct D : B { | |
| 30 | explicit D(int i) : B(i) {} | |
| 31 | }; | |
| 32 | ||
| 33 | ||
| 34 | int main() { | |
| 35 | { | |
| 36 | using T0 = hana::tuple<double>; | |
| 37 | using T1 = hana::tuple<int>; | |
| 38 | T0 t0(2.5); | |
| 39 | T1 t1 = t0; | |
| 40 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<0>(t1) == 2); | |
| 41 | } | |
| 42 | { | |
| 43 | using T0 = hana::tuple<double>; | |
| 44 | using T1 = hana::tuple<A>; | |
| 45 | constexpr T0 t0(2.5); | |
| 46 | constexpr T1 t1 = t0; | |
| 47 | static_assert(hana::at_c<0>(t1) == 2, ""); | |
| 48 | } | |
| 49 | { | |
| 50 | using T0 = hana::tuple<int>; | |
| 51 | using T1 = hana::tuple<C>; | |
| 52 | constexpr T0 t0(2); | |
| 53 | constexpr T1 t1{t0}; | |
| 54 | static_assert(hana::at_c<0>(t1) == C(2), ""); | |
| 55 | } | |
| 56 | { | |
| 57 | using T0 = hana::tuple<double, char>; | |
| 58 | using T1 = hana::tuple<int, int>; | |
| 59 | T0 t0(2.5, 'a'); | |
| 60 | T1 t1 = t0; | |
| 61 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<0>(t1) == 2); | |
| 62 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<1>(t1) == int('a')); | |
| 63 | } | |
| 64 | { | |
| 65 | using T0 = hana::tuple<double, char, D>; | |
| 66 | using T1 = hana::tuple<int, int, B>; | |
| 67 | T0 t0(2.5, 'a', D(3)); | |
| 68 | T1 t1 = t0; | |
| 69 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<0>(t1) == 2); | |
| 70 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<1>(t1) == int('a')); | |
| 71 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<2>(t1).id_ == 3); | |
| 72 | } | |
| 73 | { | |
| 74 | D d(3); | |
| 75 | using T0 = hana::tuple<double, char, D&>; | |
| 76 | using T1 = hana::tuple<int, int, B&>; | |
| 77 | T0 t0(2.5, 'a', d); | |
| 78 | T1 t1 = t0; | |
| 79 | d.id_ = 2; | |
| 80 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<0>(t1) == 2); | |
| 81 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<1>(t1) == int('a')); | |
| 82 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<2>(t1).id_ == 2); | |
| 83 | } | |
| 84 | { | |
| 85 | using T0 = hana::tuple<double, char, int>; | |
| 86 | using T1 = hana::tuple<int, int, B>; | |
| 87 | T0 t0(2.5, 'a', 3); | |
| 88 | T1 t1(t0); | |
| 89 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<0>(t1) == 2); | |
| 90 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<1>(t1) == int('a')); | |
| 91 | BOOST_HANA_RUNTIME_CHECK(hana::at_c<2>(t1).id_ == 3); | |
| 92 | } | |
| 93 | } |