Why null pointer is used?


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More C++ General Interview Questions

What is the size of a vector?

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What are destructors?

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When the constructor of a base class calls a virtual function, why doesn't the override function of the derived class gets called?

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Explain the difference between overloading and overriding?

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write the code that display the format just like 1 2 1 3 2 1 4 3 2 1 5 4 3 2 1 6 5 4 3 2 1

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How does c++ structure differ from c++ class?

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What are the unique features of C++.

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What are the various access specifiers in c++?

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When is the destructor called?

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What is polymorphism & list its types in c++?

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Why c++ is so important?

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How do pointers work?

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