Rafael Martinez Torres writes: | Hi: | | Given the classes IArray,Marray | | instance IArray Array.Array | instance Marray IOArray e IO | | I'm searching for some think like | | MLists ( Stands for Mutable-Lists ) | | Is there some thing so ? | | | I need it to implement a MQueue ... (Mutable Queue ) Here's one that someone prepared earlier. http://www.haskell.org/ghc/docs/latest/html/base/Control.Concurrent.Chan.htm...