Prelude.catch vs. Exception.catch

I notice that Prelude.catch and Exception.catch behave differently, even though they both have the same type signature (and name). Exception.catch catches exceptions that Prelude.catch does not. For instance, it is possible to bind pure functional exceptions into the IO monad using

Re: composeList

See comments below. On Sun, May 12, 2002, David Feuer wrote: On Sun, May 12, 2002, Emre Tezel wrote: Hi all, I recently bought Simon Thompson's Haskell book. I have been doing the exercises while I read on. There are couple questions that I can not solve. Any help would be greatly

Replacing the Prelude

I have recently been experimenting writing code that replaces large chunks of the Prelude, compiling with -fno-implicit-prelude. I notice that I can happily redefine numeric literals simply by creating functions called 'fromInteger' and 'fromRational': GHC will use whatever is in scope for