[plt-scheme] symbol<=?

From: Shriram Krishnamurthi (sk at cs.brown.edu)
Date: Tue Jul 17 21:57:06 EDT 2007

Symbols are meant to support only one operation, which is a
constant-time check for equality.  In return, you surrender operations
such as ordering.  If you want an ordered set, use strings in the
first place!  (Or create a data structure that caches the string in a
corresponding symbol, so you can have it both ways.)


Posted on the users mailing list.