C++ Programming: A Practical Approach

Inheritance 227

else

cout<<" Mixed Metal Containing Cuboid "<<CuboidMetal::getMetalType()<<" and

spherical "<<SphericalMetal::getMetalType()<<" is not pure."<<endl;

}

};

int main()

{

FivePercentImpureMixedMetal m("Silver",9,9.5,2.8,2793,10.5, "Silver",21,407484,10.5);

m.DeterminePurity();

}

Output

Compilation error

Program 5.9 produces a compilation error as FivePercentImpureMixedMetal derives Mixed-

Metal in private mode. Hence, all protected and public members of its parent classes, i.e.,

SphericalMetal/CuboidMetal are not accessible to FivePercentImpureMixedMetal. Hence,

it is necessary to derive MixedMetal class in protected mode from SphericalMetal ...