In what cases do I use malloc vs new?

Question

I see in C++ there are multiple ways to allocate and free data and I understand that when you call `malloc` you should call `free` and when you use the `new` operator you should pair with `delete` and it is a mistake to mix the two (e.g. Calling `free()` on something that was created with the `new` operator), but I'm not clear on when I should use `malloc`/ `free` and when I should use `new`/ `delete` in my real world programs. If you're a C++ expert, please let me know any rules of thumb or conventions you follow in this regard.

Answer 1

new is an operator in C++ and it calls the constructor. malloc is a function and does not. new returns an object of that type, malloc returns a void pointer. If malloc fails, it returns 0; if new fails, it throws an error. As an operator, new can be overridden, same as any other operator. Lastly, operators are faster than functions.

I basically always use new.