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Taylor R Campbell wrote:
Date: Fri, 18 Sep 2009 15:51:57 -0400 From: David Van Horn <dvanhorn@xxxxxxxxxxxxxxx>In a system that uses random-access lists everywhere, you would not need conversions. In a system that doesn't, these are easy to portably define. So now I'm not sure what your concern is.I want to be able to write portable programs that can take advantage of systems with only random-access lists, but that can run on other systems as well by converting between sequential lists and random- access lists. `Take advantage' here means using identity conversions. Of course I can define copying conversions portably and use those, but that wouldn't take advantage of systems whose lists are all random-access.
I see; I will add these operations in the next iteration. Thanks. David