[racket-dev] Optional equality predicate for assoc and member

From: Eli Barzilay (eli at barzilay.org)
Date: Sun Apr 24 21:01:35 EDT 2011

Four minutes ago, Neil Van Dyke wrote:
> A performance regression in "assq" would adversely impact some
> performance-sensitive legacy code that saw a lot of micro-optimizing
> last year.  Having the old "assq" available as a fallback option
> would be reassuring.

Related to the other thing I said: if you have code that depends on
fast assoc-ing, and you don't have cycles, then rolling your own
version is probably going to be faster anyway.

          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                    http://barzilay.org/                   Maze is Life!

Posted on the dev mailing list.