Originally posted by: WJvanHoeve

Hi,

I am porting older ILOG Solver 6.4 code to CPO, version 12.3.

The code uses set variables and a custom global constraint on a set variable. I have been able to adapt the code using the information in cpext.h, but during compilation I get the following error:

sumfree.o: In function `IlcSumFreeCstI::propagate()':
sumfree.cpp:(.text+0x49): undefined reference to `IlcCPOIntSetVar::_isInProcess() const'

The code that is referred to is the following (here var is of type IlcIntSetVar):

void IlcSumFreeCstI::propagate() {
if (!var.isInProcess()) // this is not accepted apparently
return;

for (IlcIntSetVarDeltaIterator iter1(var, IlcRequiredIteration); iter1.ok(); ++iter1) {
IlcInt val1 = *iter1;
for (IlcIntSetVarIterator iter2(var, IlcRequiredIteration); iter2.ok(); ++iter2) {
IlcInt val2 = *iter2;
var.removePossible(val1 + val2);
var.removePossible((IlcInt)abs(val1 - val2));
}
}
}

Could you please suggest how isInProcess() should be ported to CPO for IlcIntSetVar?

Thank you,

Willem
#CPOptimizer
#DecisionOptimization

Originally posted by: rdumeur

Dear WJvanHoeve,

Set variables are not supported by CP Optimizer
and as such do not appear in the documentation. The remaining option would be to use arrays of boolean variables or other appropriate integer structures.

Best regards,

Renaud
#CPOptimizer
#DecisionOptimization