Re: [Chicken-users] Printing recursive objects

[Jason Felice]

guile knows how to handle this:

scheme@(guile-user)> (define v (vector 0))

scheme@(guile-user)> (vector-set! v 0 v)

scheme@(guile-user)> v

$2 = #(#0#)

It can even read the self-referencing syntax, IIRC.

I know there's discussion of using Tortoise and Hare to break cycles in this situation, but what guile does seems more sophisticated.

On Wed, Sep 24, 2014 at 5:34 PM, Richard <address@hidden> wrote:

Hello Chickens,

If I have an object that references itself, like for example...

(define v (vector 0))
(vector-set! v 0 v)

and I print it, chicken goes -understandably- into an infinite loop.

Is there a way to prevent this, or is there something like
define-record-printer for non-record objects.

thank you,
Richard

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