[plt-scheme] Is there a set data-type?

For small amounts of data one can use a list and the lset procedures
from SRFI-1.
A hash table makes a good set impl., with hash-has-key? and
hash-set/hash-set! being the minimal interface
set.plt on Planet, or the galore package on Planet.

N.

On Fri, Feb 5, 2010 at 1:29 PM, Todd O'Bryan <toddobryan at gmail.com> wrote:
> What do people use for a set data-type? If there isn't one built-in,
> we're going to use a hash-table with #t as all the values.
>
> Todd
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