Red black trees

[Walter Bright]

clayasaurus wrote:
>> If this is based on "Original code and author" at 
>> http://eternallyconfuzzled.com/tuts/redblack.html then that needs to 
>> be public domain, too. The page, at the bottom, says it's copyrighted.
> 
> I emailed the author about it, and the author said to me...
> 
> "All of the code is PD unless otherwise stated. I believe each tutorial 
> mentions this at the start, and including it in the code snippets would 
> be redundant and waste space."

That's a little frustrating, because the page itself says it's 
copyrighted, so it's a tad ambiguous. I could assume from his email that 
the code is pd and the copyright only refers to the text, but I'd really 
rather have an *explicit* statement that the code on that page is pd.

> His email is ' happyfrosty at hotmail.com ' if you want to double check.
> I told him that the words public domain never appear on the red black tree page
 > and that he should add it.

Yes. This merry-go-round is important, otherwise at some arbitrary 
future date we could get the rug pulled out from under us.