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(thread&& t); 16 17 #include <thread> 18 #include <cassert> 19 #include <cstdlib> 20 #include <utility> 21 22 #include "make_test_thread.h" 23 #include "test_macros.h" 24 25 class G 26 { 27 int alive_; 28 public: 29 static int n_alive; 30 static bool op_run; 31 G()32 G() : alive_(1) {++n_alive;} G(const G & g)33 G(const G& g) : alive_(g.alive_) {++n_alive;} ~G()34 ~G() {alive_ = 0; --n_alive;} 35 operator ()()36 void operator()() 37 { 38 assert(alive_ == 1); 39 assert(n_alive >= 1); 40 op_run = true; 41 } 42 }; 43 44 int G::n_alive = 0; 45 bool G::op_run = false; 46 main(int,char **)47int main(int, char**) 48 { 49 assert(G::n_alive == 0); 50 assert(!G::op_run); 51 { 52 G g; 53 assert(G::n_alive == 1); 54 assert(!G::op_run); 55 56 std::thread t0 = support::make_test_thread(g); 57 std::thread::id id = t0.get_id(); 58 59 std::thread 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