Improving Data.Char.isSpace performance

Johan Tibell johan.tibell at
Sun Oct 28 20:21:06 CET 2012

On Sun, Oct 28, 2012 at 12:16 PM, John MacFarlane <jgm at> wrote:
> I'd like to propose that we consider replacing the definition
> of isSpace with isSpace_Alt.


Aside: I've seen a similar optimization in the Beautiful Code book, in
chapter 5.

More information about the Libraries mailing list