| 1 | // |
|---|
| 2 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 3 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 4 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 5 | // |
|---|
| 6 | //===----------------------------------------------------------------------===// |
|---|
| 7 | |
|---|
| 8 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
|---|
| 9 | // XFAIL: !has-64-bit-atomics |
|---|
| 10 | // XFAIL: !has-1024-bit-atomics |
|---|
| 11 | |
|---|
| 12 | // operator T() const noexcept; |
|---|
| 13 | |
|---|
| 14 | #include <atomic> |
|---|
| 15 | #include <cassert> |
|---|
| 16 | #include <type_traits> |
|---|
| 17 | |
|---|
| 18 | #include "atomic_helpers.h" |
|---|
| 19 | #include "test_helper.h" |
|---|
| 20 | #include "test_macros.h" |
|---|
| 21 | |
|---|
| 22 | template <typename T> |
|---|
| 23 | struct TestConvert { |
|---|
| 24 | void operator()() const { |
|---|
| 25 | T x(T(1)); |
|---|
| 26 | |
|---|
| 27 | T copy = x; |
|---|
| 28 | std::atomic_ref<T> const a(copy); |
|---|
| 29 | |
|---|
| 30 | T converted = a; |
|---|
| 31 | assert(converted == x); |
|---|
| 32 | |
|---|
| 33 | ASSERT_NOEXCEPT(T(a)); |
|---|
| 34 | static_assert(std::is_nothrow_convertible_v<std::atomic_ref<T>, T>); |
|---|
| 35 | |
|---|
| 36 | auto store = [](std::atomic_ref<T> const& y, T, T new_val) { y.store(new_val); }; |
|---|
| 37 | auto load = [](std::atomic_ref<T> const& y) { return static_cast<T>(y); }; |
|---|
| 38 | test_seq_cst<T>(store, load); |
|---|
| 39 | } |
|---|
| 40 | }; |
|---|
| 41 | |
|---|
| 42 | int main(int, char**) { |
|---|
| 43 | TestEachAtomicType<TestConvert>()(); |
|---|
| 44 | return 0; |
|---|
| 45 | } |
|---|
| 46 | |
|---|
