A namespace for modeling assistance.

This namespace provides the modeling assistance callback interface (see IloModelingAssistance::Callback). For each invocation of the callback, a modeling information ID and warning string are provided (see the IloModelingAssistance::Callback#invoke method).

This namespace also exposes modeling information IDs as defined by the CPLEX Callable Library. These constants define symbolic names for the integer modeling information IDs returned by the Callable Library (C API). The names to which the modeling information IDs are assigned are the same names used in the Callable Library except that the leading CPXMI characters have been left out. For example, the IloModelingAssistance::BIGM_COEF constant corresponds with the CPXMI_BIGM_COEF macro in the Callable Library. The modeling information IDs are accessible through the modeling assistance callback. These symbolic names can be used to test if a particular modeling issue has been detected.

Interface for modeling assistance callbacks.

Any class to be used as a modeling assistance callback must implement this interface.

Invoked by the modeling assistance callback.

If an object is registered with CPLEX by means of the method IloCplex::use(IloModelingAssistance::Callback*), then CPLEX will invoke this function of the registered object for each modeling assistance warning. These warnings will not be displayed in the engine log as they are by default when no callback is registered. For values of issueid, see the constants in the IloModelingAssistance namespace.