| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <atomic> |
| |
| // template <class T> |
| // struct atomic |
| // { |
| // bool is_lock_free() const volatile noexcept; |
| // bool is_lock_free() const noexcept; |
| // void store(T desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| // void store(T desr, memory_order m = memory_order_seq_cst) noexcept; |
| // T load(memory_order m = memory_order_seq_cst) const volatile noexcept; |
| // T load(memory_order m = memory_order_seq_cst) const noexcept; |
| // operator T() const volatile noexcept; |
| // operator T() const noexcept; |
| // T exchange(T desr, memory_order m = memory_order_seq_cst) volatile noexcept; |
| // T exchange(T desr, memory_order m = memory_order_seq_cst) noexcept; |
| // bool compare_exchange_weak(T& expc, T desr, |
| // memory_order s, memory_order f) volatile noexcept; |
| // bool compare_exchange_weak(T& expc, T desr, memory_order s, memory_order f) noexcept; |
| // bool compare_exchange_strong(T& expc, T desr, |
| // memory_order s, memory_order f) volatile noexcept; |
| // bool compare_exchange_strong(T& expc, T desr, |
| // memory_order s, memory_order f) noexcept; |
| // bool compare_exchange_weak(T& expc, T desr, |
| // memory_order m = memory_order_seq_cst) volatile noexcept; |
| // bool compare_exchange_weak(T& expc, T desr, |
| // memory_order m = memory_order_seq_cst) noexcept; |
| // bool compare_exchange_strong(T& expc, T desr, |
| // memory_order m = memory_order_seq_cst) volatile noexcept; |
| // bool compare_exchange_strong(T& expc, T desr, |
| // memory_order m = memory_order_seq_cst) noexcept; |
| // |
| // atomic() noexcept = default; |
| // constexpr atomic(T desr) noexcept; |
| // atomic(const atomic&) = delete; |
| // atomic& operator=(const atomic&) = delete; |
| // atomic& operator=(const atomic&) volatile = delete; |
| // T operator=(T) volatile noexcept; |
| // T operator=(T) noexcept; |
| // }; |
| |
| #include <atomic> |
| #include <new> |
| #include <cassert> |
| #include <thread> // for thread_id |
| #include <chrono> // for nanoseconds |
| |
| struct NotTriviallyCopyable { |
| NotTriviallyCopyable ( int i ) : i_(i) {} |
| NotTriviallyCopyable ( const NotTriviallyCopyable &rhs) : i_(rhs.i_) {} |
| int i_; |
| }; |
| |
| template <class T, class > |
| void test ( T t ) { |
| std::atomic<T> t0(t); |
| } |
| |
| int main(int, char**) |
| { |
| test(NotTriviallyCopyable(42)); |
| |
| return 0; |
| } |