1 //===----------------------------------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 
10 // <thread>
11 
12 // class thread
13 
14 // thread& operator=(thread&& t);
15 
16 #include <thread>
17 #include <new>
18 #include <cstdlib>
19 #include <cassert>
20 
21 class G
22 {
23     int alive_;
24 public:
25     static int n_alive;
26     static bool op_run;
27 
G()28     G() : alive_(1) {++n_alive;}
G(const G & g)29     G(const G& g) : alive_(g.alive_) {++n_alive;}
~G()30     ~G() {alive_ = 0; --n_alive;}
31 
operator ()()32     void operator()()
33     {
34         assert(alive_ == 1);
35         assert(n_alive >= 1);
36         op_run = true;
37     }
38 
operator ()(int i,double j)39     void operator()(int i, double j)
40     {
41         assert(alive_ == 1);
42         assert(n_alive >= 1);
43         assert(i == 5);
44         assert(j == 5.5);
45         op_run = true;
46     }
47 };
48 
49 int G::n_alive = 0;
50 bool G::op_run = false;
51 
f1()52 void f1()
53 {
54     std::exit(0);
55 }
56 
main()57 int main()
58 {
59 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
60     std::set_terminate(f1);
61     {
62         assert(G::n_alive == 0);
63         assert(!G::op_run);
64         std::thread t0(G(), 5, 5.5);
65         std::thread::id id = t0.get_id();
66         std::thread t1;
67         t1 = std::move(t0);
68         assert(t1.get_id() == id);
69         assert(t0.get_id() == std::thread::id());
70         t1.join();
71         assert(G::n_alive == 0);
72         assert(G::op_run);
73     }
74     {
75         std::thread t0(G(), 5, 5.5);
76         std::thread::id id = t0.get_id();
77         std::thread t1;
78         t0 = std::move(t1);
79         assert(false);
80     }
81 #endif  // _LIBCPP_HAS_NO_RVALUE_REFERENCES
82 }
83