Re: [Haskell-cafe] ST.Lazy vs ST.Strict

On Sun, May 3, 2009 at 11:27 AM, Tobias Olausson wrote:

Hello! I have a program that is using ST.Strict, which works fine. However, the program needs to be extended, and to do that, lazy evaluation is needed. As a result of that, I have switched to ST.Lazy to be able to do stuff like

foo y = do x <- something xs <- foo (y+1) return (x:xs)

As Ryan points out, this will not do what you want. But that is incidental, not essential: foo y = do x <- something fmap (x:) $ foo (y+1) Luke