| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // UNSUPPORTED: libcpp-has-no-threads |
| |
| // <atomic> |
| |
| // template <class Integral> |
| // Integral |
| // atomic_fetch_or_explicit(volatile atomic<Integral>* obj, Integral op); |
| // |
| // template <class Integral> |
| // Integral |
| // atomic_fetch_or_explicit(atomic<Integral>* obj, Integral op); |
| |
| #include <atomic> |
| #include <type_traits> |
| #include <cassert> |
| |
| #include "test_macros.h" |
| #include "atomic_helpers.h" |
| |
| template <class T> |
| struct TestFn { |
| void operator()() const { |
| { |
| typedef std::atomic<T> A; |
| A t; |
| std::atomic_init(&t, T(1)); |
| assert(std::atomic_fetch_or_explicit(&t, T(2), |
| std::memory_order_seq_cst) == T(1)); |
| assert(t == T(3)); |
| } |
| { |
| typedef std::atomic<T> A; |
| volatile A t; |
| std::atomic_init(&t, T(3)); |
| assert(std::atomic_fetch_or_explicit(&t, T(2), |
| std::memory_order_seq_cst) == T(3)); |
| assert(t == T(3)); |
| } |
| } |
| }; |
| |
| int main(int, char**) |
| { |
| TestEachIntegralType<TestFn>()(); |
| |
| return 0; |
| } |