[gecode-users] algorithm used in sequence constraint

[Kish Shen]

David Rijsman wrote:
> Hi Kish,
> 
> it is indeed possible to remove the IntSet s argument in the sequence constraint for boolean variables but we choose to explicitly state what value we are counting and use the IntSet for the following reason, I quote from Christian:
> 
> "we never use the C++ type bool for Boolean values as Boolean variables also take integer values. And also  choosing a set makes it easier to interface and just forget about the fact whether one is using IntVar or BoolVar."
> 
> David
> 
Hi David,

So I assume the IntSet s can only take the values 0 and 1 for the 
BoolVar case, and is really only useful if it has either 1 or 0 only? 
[If it has both 0 and 1, then all variables must take those values]

In the ECLiPSe version, there seems to be a more fundamental reason why 
the 0/1 (ECLiPSe 'boolean' version) version counts 1 -- the algorithm is 
implemented using this version, i.e. the more general version is 
actually mapped onto the 0/1 version. Is this also the case in your 
version?

Thanks and cheers,

Kish
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