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//===----------------------------------------------------------------------===//
//
// 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
// ... assertion fails line 32
// <atomic>
// template <class T>
// T
// atomic_exchange_explicit(volatile atomic<T>* obj, T desr, memory_order m);
//
// template <class T>
// T
// atomic_exchange_explicit(atomic<T>* obj, T desr, memory_order m);
#include <atomic>
#include <type_traits>
#include <cassert>
#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_exchange_explicit(&t, T(2), std::memory_order_seq_cst)
== T(1));
assert(t == T(2));
volatile A vt;
std::atomic_init(&vt, T(3));
assert(std::atomic_exchange_explicit(&vt, T(4), std::memory_order_seq_cst)
== T(3));
assert(vt == T(4));
}
};
int main()
{
TestEachAtomicType<TestFn>()();
}
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