Outdated/mixed course ?

Question

I saw the part when initializing a pointer, pointing to nothing. In C++, since C++11, it should be `void *ptr = nullptr;` instead.
It's in C that we use NULL.

Answer 1

You're right. Nowadays in C++ we should use nullptr instead.

Answer 2

We can use NULl in c++ too

Answer 3

By convention it should be avoided. Like we can use C headers in c++ too