Pure Virtual Function in C++
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- April 16, 2019 at 10:38 am #55875
A class is made abstract by declaring at least one of its functions as a pure virtual function.
We cannot create objects of abstract classes. A pure virtual function or abstract function in C++ is a virtual function for which we don’t have an implementation, we only declare it.
A virtual function with no function body and assigned with a value zero is called a pure virtual function.
Pure virtual functions must be implemented by derived classes before the class can be instantiated.
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