GRBGenConstr#

classGRBGenConstr#

Gurobi general constraint object. General constraints are alwaysassociated with a particular model. You create a general constraintobject by adding a constraint to a model (using one of theGRBModel::addGenConstr*methods), rather than by using aGRBGenConstr constructor.

The methods on general constraint objects are used to get and setgeneral constraint attributes. For example, general constraint types canbe queried by callingget (GRB_IntAttr_GenConstrType).Note, however, that it is generally more efficient to query attributesfor a set of constraints at once. This is done using the attribute querymethod on theGRBModel object (GRBModel::get).

The full list of attributescan be found in theAttributes section of thisdocument. Examples of how to query and set attributes can also be foundinthis section.

doubleget(GRB_DoubleAttrattr)#

intget(GRB_IntAttrattr)#

stringget(GRB_StringAttrattr)#

Query the value of a general constraint attribute.

Parameters:

attr – The attribute being queried.

Returns:

The current value of the requested attribute.

voidset(GRB_DoubleAttrattr,doublenewvalue)#

voidset(GRB_IntAttrattr,intnewvalue)#

voidset(GRB_StringAttrattr,conststring&newvalue)#

Set the value of a general constraint attribute.

Parameters:

• attr – The attribute being modified.

• newvalue – The desired new value of the attribute.