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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 future<R>
// future& operator=(const future&) = delete;
#include <future>
#include <cassert>
int main()
{
#ifdef _LIBCPP_MOVE
{
typedef int T;
std::promise<T> p;
std::future<T> f0 = p.get_future();
std::future<T> f;
f = f0;
assert(!f0.valid());
assert(f.valid());
}
{
typedef int T;
std::future<T> f0;
std::future<T> f;
f = f0;
assert(!f0.valid());
assert(!f.valid());
}
{
typedef int& T;
std::promise<T> p;
std::future<T> f0 = p.get_future();
std::future<T> f;
f = f0;
assert(!f0.valid());
assert(f.valid());
}
{
typedef int& T;
std::future<T> f0;
std::future<T> f;
f = f0;
assert(!f0.valid());
assert(!f.valid());
}
{
typedef void T;
std::promise<T> p;
std::future<T> f0 = p.get_future();
std::future<T> f;
f = f0;
assert(!f0.valid());
assert(f.valid());
}
{
typedef void T;
std::future<T> f0;
std::future<T> f;
f = f0;
assert(!f0.valid());
assert(!f.valid());
}
#endif // _LIBCPP_MOVE
}
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