[gecode-users] nroot for negative integers
Christian Schulte
cschulte at kth.se
Thu Aug 29 16:06:25 CEST 2013
Fixed in the trunk! That was a pain in the back... Christian
--
Christian Schulte, www.ict.kth.se/~cschulte/
> -----Original Message-----
> From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On
> Behalf Of Kish Shen
> Sent: Monday, July 22, 2013 11:27 PM
> To: users at gecode.org
> Subject: [gecode-users] nroot for negative integers
>
> Hi,
>
> I have just added support for pow and nroot to expressions in the ECLiPSe
> interface to Gecode, and on testing it, I get failures with negative
numbers, for
> example (in ECLiPSe syntax):
>
> A #= rootn(-8,3)
>
> fails, while
>
> A #= rootn(8, 3)
>
> succeeds, with A = 2.
>
> Should the first case set A to -2?
>
> The above expressions are passed to MiniModel and parsed as IntExpr. I
used
> Gecode 4.2.0 for the above tests.
>
> Cheers,
>
> Kish
>
>
>
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