Add a new general constraint of type GRB_GENCONSTR_OR to a model.
An OR constraint states that the binary resultant variable should be if and only if any of the operand variables is equal to . If all operand variables are , then the resultant should be as well.
Note that all variables participating in such a constraint will be forced to be binary; independently of how they were created.
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.
New general constraint.