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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
// <future>
// class future<R>
// future();
#include <future>
#include <cassert>
int main()
{
{
std::future<int> f;
assert(!f.valid());
}
{
std::future<int&> f;
assert(!f.valid());
}
{
std::future<void> f;
assert(!f.valid());
}
}
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