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 // id get_id() const; 16 17 #include <thread> 18 #include <new> 19 #include <cstdlib> 20 #include <cassert> 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 { 50 G g; 51 std::thread t0 = support::make_test_thread(g); 52 std::thread::id id0 = t0.get_id(); 53 std::thread t1; 54 std::thread::id id1 = t1.get_id(); 55 assert(t0.get_id() == id0); 56 assert(id0 != id1); 57 assert(t1.get_id() == std::thread::id()); 58 t0.join(); 59 } 60 61 return 0; 62 } 63