GRBModel::addGenConstrOr()

Add a new general constraint of type GRB_GENCONSTR_OR to a model.

An OR constraint <span>$</span>r = \mbox{or}\{x_1,\ldots,x_n\}<span>$</span> states that the binary resultant variable <span>$</span>r<span>$</span> should be <span>$</span>1<span>$</span> if and only if any of the operand variables <span>$</span>x_1,\ldots,x_n<span>$</span> is equal to <span>$</span>1<span>$</span>. If all operand variables are <span>$</span>0<span>$</span>, then the resultant should be <span>$</span>0<span>$</span> as well.

Note that all variables participating in such a constraint will be forced to be binary, independent of how they were created.

GRBGenConstr addGenConstrOr ( GRBVar resvar,
    const GRBVar* vars,
    int len,
    string name="" )

Arguments:

resvar: The resultant binary variable of the new constraint.

vars: Array of binary variables that are the operands of the new constraint.

len: Number of operands in the new constraint (length of vars array).

name (optional): Name for the new general constraint.

Return value:

New general constraint.


Try Gurobi for Free

Choose the evaluation license that fits you best, and start working with our Expert Team for technical guidance and support.

Evaluation License
Get a free, full-featured license of the Gurobi Optimizer to experience the performance, support, benchmarking and tuning services we provide as part of our product offering.
Academic License
Gurobi supports the teaching and use of optimization within academic institutions. We offer free, full-featured copies of Gurobi for use in class, and for research.
Cloud Trial

Request free trial hours, so you can see how quickly and easily a model can be solved on the cloud.

Search