cxx/test/thread/futures/futures.shared_future/default.pass.cpp

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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <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());
}
}