Marshall Clow | c5eb696 | 2014-07-31 15:20:48 +0000 | [diff] [blame] | 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 NotTriviallyCopyable { |
Marshall Clow | 38d9005 | 2014-10-18 11:03:33 +0000 | [diff] [blame] | 57 | NotTriviallyCopyable ( int i ) : i_(i) {} |
| 58 | NotTriviallyCopyable ( const NotTriviallyCopyable &rhs) : i_(rhs.i_) {} |
| 59 | int i_; |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 60 | }; |
Marshall Clow | c5eb696 | 2014-07-31 15:20:48 +0000 | [diff] [blame] | 61 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 62 | template <class T> |
Marshall Clow | c5eb696 | 2014-07-31 15:20:48 +0000 | [diff] [blame] | 63 | void test ( T t ) { |
Marshall Clow | 38d9005 | 2014-10-18 11:03:33 +0000 | [diff] [blame] | 64 | std::atomic<T> t0(t); |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 65 | } |
Marshall Clow | c5eb696 | 2014-07-31 15:20:48 +0000 | [diff] [blame] | 66 | |
| 67 | int main() |
| 68 | { |
Marshall Clow | 38d9005 | 2014-10-18 11:03:33 +0000 | [diff] [blame] | 69 | test(NotTriviallyCopyable(42)); |
Marshall Clow | c5eb696 | 2014-07-31 15:20:48 +0000 | [diff] [blame] | 70 | } |