Re: [Chicken-hackers] Symbols and immutability

[John Cowan]

Peter Bex scripsit:

> I just submitted a ticket for a nasty bug, #433
> http://trac.callcc.org/ticket/433
> 
> What are your thoughts on how to solve this issue?

This is the classic modifying-symbol-printname bug.  Most Lisp
specifications including R5RS and ANSI CL say this is undefined behavior
(meaning demons may fly out of your nose if you do it); implementations
typically either ignore the problem (as Chicken does today), make a copy
of the string, or mark the string immutable.  I think the last solution
would be unsuitable for Chicken, and favor the copying strategy.

-- 
When I'm stuck in something boring              John Cowan
where reading would be impossible or            (who loves Asimov too)
rude, I often set up math problems for          address@hidden
myself and solve them as a way to pass          http://www.ccil.org/~cowan
the time.      --John Jenkins