This question about virtual table tables in C++ spawned a handful of answers that quoted an apparently authoritative or well-regarded source back in 2011. Since then, the source website has gone offline.
One user has pulled the contents from the site out of the Wayback Machine and posted it as a set of answers. The answers are correctly and properly attributed, but with a disclaimer that the original content by the original author is not licensed under the Creative Commons license that SO uses.
I'm not sure if this is OK. The user isn't the original author, so I'm pretty sure that he wouldn't be authorized to publish the contents under a license that the author didn't intend. If the site is no longer available on the internet, but can be found in the Wayback Machine, wouldn't simply updating the other links in the other answers be preferable to wholesale copy/paste?