[plt-scheme] equal? and shared structure

For R6 compatibility, it should always terminate. I'm not sure if its
there yet, tho.

Kent Dybvig gave a nice lecture at Indiana explaining how to implement
this efficiently. (I didn't get to see the lecture, but he gave me the
synopsis aftewards.)

Robby

On Dec 18, 2007 9:19 PM, Prabhakar Ragde <plragde at uwaterloo.ca> wrote:
> Under what circumstances will equal? terminate with the right answer
> when given cons-structures with sharing (and possibly cycles)? The two I
> concocted for homework seem not to break it, but others do. Thanks. --PR
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