Originally posted by: Jaeyoung

Hi, all

I am using "IloIntVar" as a variable in my c++ program.
I set upper and lower bound with 1 and 0.

The problem is a simple linear function with linear constraints (but hundreds of variables and constraints).
After CPLEX solved, I use "cplex.getValue(X[i])" and CPLEX usually returns correct values.
but at times it returns 0.9999999987, not 1 even though I set the variable as "ILOINT".
It is true that "cplex.getValue" returns "IloNum"(double type), but I'm still expecting 1.00000.

Is that normal? Should I use IloBoolVar? or set any other options?

Any advice?
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: RodrigoLinfati

I use:

IloRound(cplex.getValue(x[i])
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

The returned value may suffer from round-off errors but it will be either almost 0 or almost 1.
The correct way to solve your problem is to use IloRound() or ::round() as suggested in the other post.
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: Jaeyoung

Thank you all of you. It's a great help. :)
#CPLEXOptimizers
#DecisionOptimization