How do we best make sure {Int,Word,Float,Double} to {Int,Word,Float,Double} conversions stay efficient

Ian Lynagh igloo at
Fri Dec 14 22:47:23 CET 2012

Hi Carter,

On Fri, Dec 14, 2012 at 04:34:29PM -0500, Carter Schonwald wrote:
> A related question I have is that I've some code that will map the
> singleton Nats to Ints, and last time I looked into this/ had a chat on the
> ghc-users list, it sounded like sometimes having Integer values constructed
> in between are unavoidable.  Is that still the case with post 7.6.1 ghc?
> (And or, how might I be able to help?)

I don't know what a singleton Nat is, but if you mean Word then that's
what Johan's been working on.


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