[Haskell-cafe] quotRem and divMod

[Artyom Kazak]

Shachaf Ben-Kiki <shachaf at gmail.com> писал(а) в своём письме Tue, 29 Jan  
2013 09:09:37 +0300:

> That code is from base 4.5. Here's base 4.6:
>
>     quotRem x@(I32# x#) y@(I32# y#)
>         | y == 0                     = divZeroError
>           -- Note [Order of tests]
>         | y == (-1) && x == minBound = (overflowError, 0)
>         | otherwise                  = case x# `quotRemInt#` y# of
>                                        (# q, r #) ->
>                                            (I32# (narrow32Int# q),
>                                             I32# (narrow32Int# r))
>
> So it looks like it was improved in GHC 7.6. In particular, by this
> commit:  
> http://www.haskell.org/pipermail/cvs-libraries/2012-February/014880.html
>
>     Shacha

Well, I’m glad to know that it has been fixed in the newer GHC (I’m still  
on 7.4). Thanks!