[plt-scheme] Mutable and immutable pairs in PLT Scheme

On Nov 26, 2008, at 12:01 PM, Matthew Flatt wrote:

> I'm asking how many people intent to actually use `(rnrs
> mutable-pairs)' in practice. So far, the answer seems to be zero...  
> but
> it's only been a couple of hours since I asked the question.

I suspect a port of Twobit to R6RS is going to require the use of  
mutable-pairs, at least at first.  I am not planning such a port, but  
Will Clinger might be.

-Felix Klock