Repeated calloc over the same pointer

Question

What happens when I use different succesive calloc functions over the same pointer?

int *ptr;
ptr = (int *) calloc(X, sizeof(int));
ptr = (int *) calloc(Y, sizeof(int));
ptr = (int *) calloc(Z, sizeof(int));

Where X,Y,Z are three distinct values.

Answer 1

You will lose the connection to the previously allocated memory and you will no longer be able to free it - a memory leak