Re: List.sortBy shows wrong result

The negation of -21474836848 in 32-bit two's complement arithmetic is
-21474836848. There is no positive value corresponding to the negative of
the minimal value in two's complement arithmetic.

On Wed, Feb 24, 2016, 11:56 PM Chris <[email protected]> wrote:

> Hi all,
>
>
> List.sortBy show a strange behaviour:
>
> val l = List(Int.MinValue, Int.MinValue+1)
> l.sortBy(I => I)  // List(-2147483648, -2147483647)
> l.sortBy(I => -I) // List(-2147483648, -2147483647)
>
>
> If I use other values anything seems ok
>
> val l = List(Int.MinValue+2, Int.MinValue+1)
> l.sortBy(I => I)  // List(-2147483647, -2147483646)
> l.sortBy(I => -I) // List(-2147483646, -2147483647)
>
>
> What's wrong here?
> Can anyone help? Thanks in advance.
>
> Chris
>
>
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