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: libcpp-has-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 G()31 G() : alive_(1) {++n_alive;} G(const G & g)32 G(const G& g) : alive_(g.alive_) {++n_alive;} ~G()33 ~G() {alive_ = 0; --n_alive;} 34 operator ()()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 main(int,char **)46int 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