ILOG CPLEX 11.0 User's Manual

Table 30.2Callback MacrosCallback Macro Classpresolve ILOPRESOLVECALLBACKn IloCplex::PresolveCallbackIcontinuous ILOCONTINUOUSCALLBACKn IloCplex::ContinuousCallbackIsimplex ILOSIMPLEXCALLBACKn IloCplex::SimplexCallbackIbarrier ILOBARRIERCALLBACKn IloCplex::BarrierCallbackIcrossover ILOCROSSOVERCALLBACKn IloCplex::CrossoverCallbackInetwork ILONETWORKCALLBACKn IloCplex::NetworkCallbackIMIP info ILOMIPINFOCALLBACKn IloCplex::MIPInfoCallbackIMIP ILOMIPCALLBACKn IloCplex::MIPCallbackIprobing info ILOPROBINGINFOCALLBACKn IloCplex::ProbingCallbackIprobing ILOPROBINGCALLBACKn IloCplex::ProbingCallbackIfractional cut info ILOFRACTIONALCUTINFOCALLBACKn IloCplex::FractionalCutCallbackIfractional cut ILOFRACTIONALCUTCALLBACKn IloCplex::FractionalCutCallbackIdisjunctive cut info ILODISJUNCTIVECUTINFOCALLBACKn IloCplex::DisjunctiveCutCallbackIdisjunctive cut ILODISJUNCTIVECUTCALLBACKn IloCplex::DisjunctiveCutCallbackIflow MIR cut info ILOFLOMIRCUTINFOCALLBACKn IloCplex::FlowMIRCutInfoCallbackIflow MIR cut ILOFLOMIRCUTCALLBACKn IloCplex::FlowMIRCutCallbackIThe protected methods of the corresponding class and its base classes specify the functionsthat can be called for implementing your callback. See the ILOG CPLEX Reference Manualwith respect to these classes for details of which functions can be called.Here is an example of how to implement a simplex callback with the name MyCallbackthat takes one argument:ILOSIMPLEXCALLBACK1(MyCallback, IloInt, num) {if ( getNiterations() == num ) abort();}This callback aborts the simplex algorithm at the iteration indicated by the number num. Itqueries the current iteration number by calling the function getNiterations, a protectedmethod of the class IloCplex::ContinuousCallbackI.To use this callback with an IloCplex object cplex, simply call:456 ILOG CPLEX 11.0 — USER’ S MANUAL