Re: Text.Printf replacement?

On 06/09/13 04:16, Bart Massey wrote:

A final issue has to do with the return type of Text.Printf.printf, which is polymorphic between String and IO a. I'm sure this seemed like a good idea at the time, but it's not so ideal today: GHC gives a warning when printf is used at IO a unless you explicitly ignore the result.

You can probably force the `a` to be `()` by using: instance (a ~ ()) => PrintfType (IO a) where ... But that is of course not standard Haskell. Twan