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Pure Virtual Function in C++

This thread contains 1 reply, has 2 voices, and was last updated by  Test 5 months ago.

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  • #55833

    What is a Pure Virtual Function in C++?


  •  Test
    #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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