Originally posted by: yek_ti1

Hi,

instead of using static model doing
model.add (test==1);
solver.solve();

I'm using something like:
Ilcgoal goal (...){
solver.add (test==1);
retunr 0.
}
solver.solve(goal);

My question is:
is there a difference with the last sample and
this one :
IlcGoal goal(...){
return (test==1);
}
solver.solve(goal);

It seems to me that it should be equivalent but maybe i'm missing something important ?
Thank you by advance.
#CPOptimizer
#DecisionOptimization

Originally posted by: SystemAdmin

Hello.

There's no real difference between the two versions. Note that

return (test==1);

creates a new goal for decision test==1. This goal is executed just after the current goal. Therefore in total, there will be two goals executed. A shortcut is:

solver.solve(IlcGoal(test==1));

This executes only one goal, but otherwise there's no difference.
Note that your search should instantiate all variables, not only variable test.

Best regards, Petr
#CPOptimizer
#DecisionOptimization