[racket] Problem writing and reading sets

Wayne,

You cannot read in a set.  If you read in the result of print, you get
'(set 1 2 3), which is a list beginning with the symbol 'set, not a set.
Sets are a derived datatype using structs, not a primitive on recognized by
read and write.  You can use the functions serialize and deserialize to
store sets, if you need to.

--Carl

On Fri, Jul 5, 2013 at 3:41 PM, Wayne Iba <iba at westmont.edu> wrote:

> If I evaluate (write myset) for myset as (set 1 2 3), the format of the
> output is "#<set: 1 2 3>", whereas (print myset) produces "(set 1 2 3)".
> Naturally, I can read in the latter but not the former.  From the docs, I
> believe the expectation is that we can rely on the output of write for
> reading, but not necessarily that of print.
>
> Am I missing something here or is this a problem with how racket is
> writing sets?  (I'm using v5.3.5)
>
> Thanks,
> --Wayne
>
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