On Sun, Oct 14, 2012 at 12:00 PM, Gábor Lehel <illiss...@gmail.com> wrote: > On Sun, Oct 14, 2012 at 8:47 PM, Dan Burton <danburton.em...@gmail.com> wrote: >> At the risk of useless bikeshedding... might I suggest "r" as a mnemonic for >> "result"? >> >> foldl :: (a -> r -> r) -> r -> [a] -> r >> foldr :: (r -> a -> r) -> r -> [a] -> r >> >> -- Dan Burton > > 'r' is the version I originally used myself (see reddit). But then you > have to change the foldrs too, and quite possibly a lot of other > functions, and get dragged into a big discussion over when is 'r' a > better mnemonic than 'b' and when is it not. > > Simply swapping 'a' and 'b' in the left folds captures most of the > benefit for least cost. > > Same goes for most of the other suggestions I have seen (I don't find > the existing signatures actively confusing, merely suboptimal), but if > sentiment is overwhelmingly in favor of making further changes I can > be swayed. For now I wanted to propose a minimal change with the best > chance of attracting a broad consensus.
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