Re: [Haskell-cafe] A handy little consequence of the Cont monad

On Fri, 2008-02-01 at 00:09 -0500, Cale Gibbard wrote:

Hello,

Today on #haskell, resiak was asking about a clean way to write the function which allocates an array of CStrings using withCString and withArray0 to produce a new with* style function. I came up with the following:

nest :: [(r -> a) -> a] -> ([r] -> a) -> a nest xs = runCont (sequence (map Cont xs))

This is what you write after all that time on #haskell? nest = runCont . sequence . map Cont