What happens if I use malloc twice on the same pointer (C)?

Question

Say for instance I created a pointer newPtr and I use malloc(some size) and then later I use malloc(some size) again with the same pointer. What happens? Am i then creating

Answer 1

Your program will have a memory leak. The first value of newPtr will be lost and you will not be able to free it.

Am i then creating a second block of memory the same size of the first one?

Yes. You are allocating a second object, distinct from the first one.

Does newPtr point to the same address?

No. The objects are distinct, so their address are distinct.