Originally posted by: SystemAdmin

[zhzhang said:]

Based on Example: Controlling Cuts iloadmipex5.cpp, I implement my CutCallback class as follows:

class polycutI:public IloCplex::CutCallbackI{
        IloIntArray      cita;
        IloNumVarArray x;
        IloNumVar        z;
public:
        IloCplex::CallbackI* duplicateCallback() const{
                return (new(getEnv()) polycutI(*this));
        }
       
        polycutI(IloIntArray cita1,IloNumVarArray x1,IloNumVar z1):cita(cita1), x(x1), z(z1){}
        void main();
};

IloCplex::Callback polycut(IloEnv env,
                                IloIntArray cita1,
                                IloNumVarArray x1,
                                IloNumVar      z1)
{
        return (IloCplex::Callback(new (env) polycutI(cita1,x1,z1)));
}

void polycutI::main()
{...}

However, it cannot be compiled correctly. Error message:
g++ -c -g -fpic -fexceptions -DNDEBUG -DIL_STD -I/usr/local/cplex110/include -I/usr/local/concert25/include test.cpp
test.cpp: In constructor `polycutI::polycutI(IloIntArray, IloNumVarArray, IloNumVar)':
test.cpp:31: error: no matching function for call to `IloCplex::CutCallbackI::CutCallbackI()'
test.cpp:28: note: candidates are: IloCplex::CutCallbackI::CutCallbackI(const IloCplex::CutCallbackI&)
/usr/local/cplex110/include/ilcplex/ilocplexi.h:2175: note:                IloCplex::CutCallbackI::CutCallbackI(IloEnv)


I don't know how to revise my code because it is almost same as the example.


#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[MMorin01 said:]

Hello,
You have probably found a solution now, but I will make a guess just in case:

You need to call the constructor of the base class... So you have to replace the following line
  polycutI(IloIntArray cita1,IloNumVarArray x1,IloNumVar z1):cita(cita1), x(x1), z(z1){}
by something like that
  polycutI(IloEnv env, IloIntArray cita1,IloNumVarArray x1,IloNumVar z1):CutCallBackI(env), cita(cita1), x(x1), z(z1){}

It might be totally wrong... but it's my guess. The fact is that there is no default constructor for the class CutCallBackI.

M.
#CPLEXOptimizers
#DecisionOptimization