72 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8//9// UNSUPPORTED: no-threads10 11// <thread>12 13// class thread14 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 24class G25{26 int alive_;27public: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 43int G::n_alive = 0;44bool G::op_run = false;45 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