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C C++ interview questions
!!! C C++ interview questions !!!
What is pure virtual function? or what is abstract class?
When you define only function prototype in a base class without and do the complete implementation in derived class. This base class is called abstract class and client won't able to instantiate an object using this base class.
You can make a pure virtual function or abstract class this way..
void foo() = 0;
Boo MyBoo; // compilation error
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