What is the difference between nullptr and 0 in C++?
An example of an AI chatbot conversation about nullptr and 0 in C++.
What is the difference between nullptr and 0 in C++?
In C++, nullptr is a keyword representing a null pointer, while 0 is an integer literal that can also be used as a null pointer.
Can you explain why nullptr is preferred over 0?
Sure! nullptr provides type safety, ensuring that it can only be used in pointer contexts, reducing ambiguity.
Are there any scenarios where using 0 is still acceptable?
Yes, in legacy code or when working with older C++ standards, using 0 as a null pointer is still common.
What about using NULL? Is it different from nullptr and 0?
Yes, NULL is typically defined as 0, but it can lead to ambiguity in function overloading, which nullptr avoids.
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