On Mon, Apr 14, 2008 at 10:21:40AM +0200, felix winkelmann wrote: > On Sun, Apr 13, 2008 at 3:43 PM, Peter Bex <[EMAIL PROTECTED]> wrote: > > Hi all, > > > > According to Elf the main Chicken hackers (Felix and Kon) do not > > read the janitors list and few others do. > > > > 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? > > > > Sorry, I don't use trac anymore, as I seldom get any kind > of connection to it.
I thought there were plans to move trac to galinha because of these problems. Mario, Arto, anyone: Will/can this be done soon? The current situation really is unusable. > Can you describe the problem here? Here's a paste of my ticket's text: --- When using ->string on a symbol and calling a destructive string procedure on the result, you mutate the original symbol everywhere it's used. After that, the mutated symbol is not eq? to the same symbol when made afresh. #;1> (define x 'TEST) #;2> (define y 'test) #;3> (define z 'test) #;4> (string-upcase! (->string y)) "TEST" #;5> (eq? x y) #f #;6> (eq? y z) #t #;7> x TEST #;8> y TEST #;9> (eq? x 'test) #f #;10> (eq? x 'TEST) #t #;11> (eq? y 'TEST) #f #;12> (eq? y 'test) #f Not sure what the solution should be. Perhaps ->string should just make a copy, or the destructive procedures should make a copy when invoked on an immutable string, or refuse to operate on immutable strings. --- Cheers, Peter -- http://sjamaan.ath.cx -- "The process of preparing programs for a digital computer is especially attractive, not only because it can be economically and scientifically rewarding, but also because it can be an aesthetic experience much like composing poetry or music." -- Donald Knuth
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