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 // <atomic>
11
12 // template <class T>
13 // struct atomic
14 // {
15 // bool is_lock_free() const volatile noexcept;
16 // bool is_lock_free() const noexcept;
17 // void store(T desr, memory_order m = memory_order_seq_cst) volatile noexcept;
18 // void store(T desr, memory_order m = memory_order_seq_cst) noexcept;
19 // T load(memory_order m = memory_order_seq_cst) const volatile noexcept;
20 // T load(memory_order m = memory_order_seq_cst) const noexcept;
21 // operator T() const volatile noexcept;
22 // operator T() const noexcept;
23 // T exchange(T desr, memory_order m = memory_order_seq_cst) volatile noexcept;
24 // T exchange(T desr, memory_order m = memory_order_seq_cst) noexcept;
25 // bool compare_exchange_weak(T& expc, T desr,
26 // memory_order s, memory_order f) volatile noexcept;
27 // bool compare_exchange_weak(T& expc, T desr, memory_order s, memory_order f) noexcept;
28 // bool compare_exchange_strong(T& expc, T desr,
29 // memory_order s, memory_order f) volatile noexcept;
30 // bool compare_exchange_strong(T& expc, T desr,
31 // memory_order s, memory_order f) noexcept;
32 // bool compare_exchange_weak(T& expc, T desr,
33 // memory_order m = memory_order_seq_cst) volatile noexcept;
34 // bool compare_exchange_weak(T& expc, T desr,
35 // memory_order m = memory_order_seq_cst) noexcept;
36 // bool compare_exchange_strong(T& expc, T desr,
37 // memory_order m = memory_order_seq_cst) volatile noexcept;
38 // bool compare_exchange_strong(T& expc, T desr,
39 // memory_order m = memory_order_seq_cst) noexcept;
40 //
41 // atomic() noexcept = default;
42 // constexpr atomic(T desr) noexcept;
43 // atomic(const atomic&) = delete;
44 // atomic& operator=(const atomic&) = delete;
45 // atomic& operator=(const atomic&) volatile = delete;
46 // T operator=(T) volatile noexcept;
47 // T operator=(T) noexcept;
48 // };
49
50 #include <atomic>
51 #include <new>
52 #include <cassert>
53 #include <thread> // for thread_id
54 #include <chrono> // for nanoseconds
55
56 struct TriviallyCopyable {
TriviallyCopyableTriviallyCopyable57 TriviallyCopyable ( int i ) : i_(i) {}
58 int i_;
59 };
60
61 template <class T>
test(T t)62 void test ( T t ) {
63 std::atomic<T> t0(t);
64 }
65
main()66 int main()
67 {
68 test(TriviallyCopyable(42));
69 test(std::this_thread::get_id());
70 test(std::chrono::nanoseconds(2));
71 }
72