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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// UNSUPPORTED: libcpp-has-no-threads
// <future>
// class shared_future<R>
// shared_future();
#include <future>
#include <cassert>
int main()
{
{
std::shared_future<int> f;
assert(!f.valid());
}
{
std::shared_future<int&> f;
assert(!f.valid());
}
{
std::shared_future<void> f;
assert(!f.valid());
}
}
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