[Haskell-cafe] Announcing containers 0.5.8.1

[Henning Thielemann]

On Wed, 31 Aug 2016, David Feuer wrote:

> Use BangPatterns throughout to reduce noise. This extension is now
> required to compile containers.

Btw. there is no strong need for BangPatterns. Instead of

f !x !y = ...

you can write

f = strict2 $ \x y -> ...

{-# INLINE strict2 #-}
strict2 :: (a -> b -> x) -> a -> b -> x
strict2 f a b = (f $! a) $! b


Sometimes I hope that availability of portable libraries would help 
non-mainstream compilers to gain ground.