[gecode-users] Finalizing TupleSets

[Mikael Zayenz Lagerkvist]

This sounds reasonable, I didn't see a real use for defining TupleSets
that meant direct failure before (I just assumed that that would be a
modeling error).

It won't be in 3.0.0, but it will be added after 3.0.0 is released.

Cheers,
Mikael

On Tue, Mar 10, 2009 at 9:14 AM, Malcolm Ryan <malcolmr at cse.unsw.edu.au> wrote:
> I use a TupleSet to represent the edges of a graph to constrain paths.
> It is certainly possible to have a graph with no edges. When I go
> looking for paths in that graph, I want failure. What I _don't_ want
> is for the code to crash.
>
> Malcolm
>
> On 10/03/2009, at 6:16 PM, Mikael Zayenz Lagerkvist wrote:
>
>> On Tue, Mar 10, 2009 at 2:20 AM, Malcolm Ryan <malcolmr at cse.unsw.edu.au
>> > wrote:
>>> On 09/03/2009, at 8:55 PM, Christian Schulte wrote:
>>>> The attempt to finalize an empty tuple set will also throw an
>>>> exception but
>>>> most likely only in 3.0.1 and not 3.0.0.
>>>
>>> Is that the intended behaviour? Having an empty tuple set seems
>>> perfectly legitimate to me.
>>
>> An empty TupleSet is not a meaningful object to use for a constraint,
>> since it would mean direct failure.
>>
>> Cheers,
>> Mikael
>>
>> --
>> Mikael Zayenz Lagerkvist, http://www.ict.kth.se/~zayenz/
>
>
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-- 
Mikael Zayenz Lagerkvist, http://www.ict.kth.se/~zayenz/