| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // UNSUPPORTED: no-threads |
| 10 | |
| 11 | // <thread> |
| 12 | |
| 13 | // class thread |
| 14 | |
| 15 | // thread& operator=(thread&& t); |
| 16 | |
| 17 | #include <thread> |
| 18 | #include <cassert> |
| 19 | #include <utility> |
| 20 | |
| 21 | #include "make_test_thread.h" |
| 22 | #include "test_macros.h" |
| 23 | |
| 24 | class G |
| 25 | { |
| 26 | int alive_; |
| 27 | public: |
| 28 | static int n_alive; |
| 29 | static bool op_run; |
| 30 | |
| 31 | G() : alive_(1) {++n_alive;} |
| 32 | G(const G& g) : alive_(g.alive_) {++n_alive;} |
| 33 | ~G() {alive_ = 0; --n_alive;} |
| 34 | |
| 35 | void operator()() |
| 36 | { |
| 37 | assert(alive_ == 1); |
| 38 | assert(n_alive >= 1); |
| 39 | op_run = true; |
| 40 | } |
| 41 | }; |
| 42 | |
| 43 | int G::n_alive = 0; |
| 44 | bool G::op_run = false; |
| 45 | |
| 46 | int main(int, char**) |
| 47 | { |
| 48 | assert(G::n_alive == 0); |
| 49 | assert(!G::op_run); |
| 50 | { |
| 51 | G g; |
| 52 | assert(G::n_alive == 1); |
| 53 | assert(!G::op_run); |
| 54 | |
| 55 | std::thread t0 = support::make_test_thread(g); |
| 56 | std::thread::id id = t0.get_id(); |
| 57 | |
| 58 | std::thread t1; |
| 59 | t1 = std::move(t0); |
| 60 | assert(t1.get_id() == id); |
| 61 | assert(t0.get_id() == std::thread::id()); |
| 62 | |
| 63 | t1.join(); |
| 64 | assert(G::n_alive == 1); |
| 65 | assert(G::op_run); |
| 66 | } |
| 67 | assert(G::n_alive == 0); |
| 68 | assert(G::op_run); |
| 69 | |
| 70 | return 0; |
| 71 | } |
| 72 |