I'm sorry, I spoke too quickly. On the other hand, it would actually have worked: every OS I'm aware of (Windows, Linux, OpenBSD) limits 32-bit applications to

I'm sorry, I spoke too quickly. On the other hand, it would actually have worked: every OS I'm aware of (Windows, Linux, OpenBSD) limits 32-bit applications to 2GB of memory, and 64-bit applications to some ridiculously large number well short of 2^64. In neither case could this actually overflow. But that's system-specific; it's not defined to fix this, so sorry for spreading the misinformation.