Re: Weak hash tables are too strong?

[Michael Livshin]

Thien-Thi Nguyen <address@hidden> writes:

>    From: Neil Jerram <address@hidden>
>    Date: 16 Jan 2002 07:20:49 +0000
> 
>    guile> (define b (make-doubly-weak-hash-table 7))
> 
> this works as you'd expect:
> 
>   (let ((b (make-doubly-weak-hash-table 7)))
>     (hash-set! b 2 (vector 2 3 4))
>     3
>     b
>     (gc)
>     (gc)
>     b)
> 
> however, if the first lone `b' is replaced w/ `(display b) (newline)'
> you get the previous behavior.  hmmm.

my (admittedly vague) recollection of the problem is that
recently-printed things tend to stick in memory.  you print more
stuff, they go away.

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