This page is part of the web mail archives of SRFI 44 from before July 7th, 2015. The new archives for SRFI 44 contain all messages, not just those from before July 7th, 2015.
Sorry for the delay in responding to so much commentary. I think Oleg has an excellent case for enumerators as the primary collection traversal mechanism. Oleg: I'd prefer a separate fold operator (collection-foldl, for example). This would give implementors the opportunity for more under-the-hood work on efficient folding for collections. Also, I do feel that the current spec inhibits the creation of functional or partially functional (linear updating) datastructure operations. I'd like to hear some proposals, but initially, my thought is to specify both purely functional and linear updating versions of the operations that were previously destructive. Thoughts? Scott --
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