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// bool joinable() 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
25class G
26{
27 int alive_;
28public:
29 static int n_alive;
30 static bool op_run;
31
32 G() : alive_(1) {++n_alive;}
33 G(const G& g) : alive_(g.alive_) {++n_alive;}
34 ~G() {alive_ = 0; --n_alive;}
35
36 void operator()()
37 {
38 assert(alive_ == 1);
39 assert(n_alive >= 1);
40 op_run = true;
41 }
42};
43
44int G::n_alive = 0;
45bool G::op_run = false;
46
47int main(int, char**)
48{
49 {
50 G g;
51 std::thread t0 = support::make_test_thread(g);
52 assert(t0.joinable());
53 t0.join();
54 assert(!t0.joinable());
55 }
56
57 return 0;
58}
59

source code of libcxx/test/std/thread/thread.threads/thread.thread.class/thread.thread.member/joinable.pass.cpp