I have a base class name Elec, and 3 derived class.....capacitor, resistor, and series_circuits. I also used composition on class series_circuit to use capacitor and resistor object. In series circuit, i have declare an elec pointer to object.....Elec* *component. in the implementation, somewhere i wrote down component=new Elec*[10];..in another method, i write component= new Resistor(resName,resValue);....I got an error doing tht. They saying, unable to allocate an object of abstract type"REsistor" Can somebody have an idea to how to solve this issue??
davye_l 0 Newbie Poster
Ancient Dragon 5,243 Achieved Level 70 Team Colleague Featured Poster
From the error description I think the Elec class contains one or more pure virtual functions. If that is true then you can only allocate derived classes.
>>Can somebody have an idea to how to solve this issue??
allocate componment to be one of the derived classes.
davye_l 0 Newbie Poster
i do have two pure functions in class Elec but like i said, class resistance is derived from class elec, so i would expect to be able to allocate the memory
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