[gecode-users] Slight modification of examples/money.cc that reveals a bug
Guido Tack
tack at ps.uni-sb.de
Tue Feb 28 17:47:59 CET 2006
Hi.
> I think I've stumbled across a bug that is quite easy to reproduce by doing
> a slight modification of examples/money.cc.
> [...]
> No change - it works like it should. But now let's do a small change, and
> instead post the following constraint:
> post(this, 9 == s);
>
> If we recompile and rerun it now we get no solution, so somethings broken.
> I bet it's a sign error since if we change it to:
> post(this, -9 == s);
> it works!
Thanks a lot! The bug was really easy to find and fix thanks to your excellent
bug report. It seems we have never tested writing ints on the left-hand side
of an equation. Yet another fix for the 1.0.1 release!
Cheers,
Guido
--
Guido Tack
Programming Systems Lab, Saarland University, Germany
http://www.ps.uni-sb.de/~tack
More information about the gecode-users
mailing list