On Mar 27, Ryan Culpepper wrote: > > The docs say 'hash-ref' accepts a third value, which if a procedure > is applied to get the default value and which otherwise is > interpreted as the default value. That's what I meant by "the normal > hash value/thunk convention".
I know. A popular use case is allocating something to put in the table. -- ((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay: http://www.barzilay.org/ Maze is Life! _________________________________________________ For list-related administrative tasks: http://list.cs.brown.edu/mailman/listinfo/plt-dev