[racket] Futures and shared data structure

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Mon Dec 20 16:51:42 EST 2010

On Mon, Dec 20, 2010 at 3:48 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> and, sure enough, looking at the expansion of the loop:
>  (for ([i (in-vector some-data)]) i)
> I see that it uses multiple values which, I believe are not safe for futures.
> I believe that this is a recent change and hopefully whoever did it
> will fix it (I'll post separately about this).

Whoops, no 5.0.2 also had this use of multiple values in it, and so
'for'+'in-vector' was not safe then either.

The expanded code doens't look very good, imo, tho, so perhaps whoever
recently was working on this can clean this part up too.


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