Date: Fri, 31 Oct 2008 15:33:05 -0400 From: David St-Hilaire sthilaid@iro.umontreal.ca
I just found out that their are the ##table-foldl and ##table-for-each internal procedure that are actually essential for making a program that use table efficient, but why are these only internals, and not external functions?
I'd wager a guess that they are unsafe, not merely in that they don't check their arguments but also in that they don't behave nicely when the procedures passed to them modify the table.