09e3a36058
This patch adds a large number of missing includes in the libc++ headers and the test suite. Those were found as part of the effort to move towards a mostly monolithic top-level std module.
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
//
|
|
// 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: c++03, c++11, c++14, c++17
|
|
// XFAIL: !has-64-bit-atomics
|
|
|
|
// integral-type fetch_or(integral-type, memory_order = memory_order::seq_cst) const noexcept;
|
|
|
|
#include <atomic>
|
|
#include <cassert>
|
|
#include <concepts>
|
|
#include <type_traits>
|
|
#include <utility>
|
|
|
|
#include "atomic_helpers.h"
|
|
#include "test_macros.h"
|
|
|
|
template <typename T>
|
|
concept has_fetch_or = requires {
|
|
std::declval<T const>().fetch_or(std::declval<T>());
|
|
std::declval<T const>().fetch_or(std::declval<T>(), std::declval<std::memory_order>());
|
|
};
|
|
|
|
template <typename T>
|
|
struct TestDoesNotHaveFetchOr {
|
|
void operator()() const { static_assert(!has_fetch_or<std::atomic_ref<T>>); }
|
|
};
|
|
|
|
template <typename T>
|
|
struct TestFetchOr {
|
|
void operator()() const {
|
|
static_assert(std::is_integral_v<T>);
|
|
|
|
T x(T(1));
|
|
std::atomic_ref<T> const a(x);
|
|
|
|
{
|
|
std::same_as<T> decltype(auto) y = a.fetch_or(T(2));
|
|
assert(y == T(1));
|
|
assert(x == T(3));
|
|
ASSERT_NOEXCEPT(a.fetch_or(T(0)));
|
|
}
|
|
|
|
{
|
|
std::same_as<T> decltype(auto) y = a.fetch_or(T(2), std::memory_order_relaxed);
|
|
assert(y == T(3));
|
|
assert(x == T(3));
|
|
ASSERT_NOEXCEPT(a.fetch_or(T(0), std::memory_order_relaxed));
|
|
}
|
|
}
|
|
};
|
|
|
|
int main(int, char**) {
|
|
TestEachIntegralType<TestFetchOr>()();
|
|
|
|
TestEachFloatingPointType<TestDoesNotHaveFetchOr>()();
|
|
|
|
TestEachPointerType<TestDoesNotHaveFetchOr>()();
|
|
|
|
TestDoesNotHaveFetchOr<bool>()();
|
|
TestDoesNotHaveFetchOr<UserAtomicType>()();
|
|
TestDoesNotHaveFetchOr<LargeUserAtomicType>()();
|
|
|
|
return 0;
|
|
}
|