42ba740aff
Implement the std::atomic_ref class template by reusing atomic_base_impl. Based on the work from https://reviews.llvm.org/D72240
46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// XFAIL: !has-64-bit-atomics
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// XFAIL: !has-1024-bit-atomics
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// operator T() const noexcept;
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#include <atomic>
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#include <cassert>
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#include <type_traits>
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#include "atomic_helpers.h"
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#include "test_helper.h"
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#include "test_macros.h"
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template <typename T>
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struct TestConvert {
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void operator()() const {
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T x(T(1));
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T copy = x;
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std::atomic_ref<T> const a(copy);
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T converted = a;
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assert(converted == x);
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ASSERT_NOEXCEPT(T(a));
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static_assert(std::is_nothrow_convertible_v<std::atomic_ref<T>, T>);
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auto store = [](std::atomic_ref<T> const& y, T, T new_val) { y.store(new_val); };
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auto load = [](std::atomic_ref<T> const& y) { return static_cast<T>(y); };
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test_seq_cst<T>(store, load);
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}
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};
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int main(int, char**) {
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TestEachAtomicType<TestConvert>()();
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return 0;
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}
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