[Solved] What is the difference between assigning a pointer to variable address and explicitly to memory address?

Question

Those are both undefined behavior. You are trying to modify memory that you did not allocate. The second is even less safe, because you are assuming a is going to be allocated to that address every time, which is absolutely not a safe assumption.

Accepted Answer

Those are both undefined behavior. You are trying to modify memory that you did not allocate. The second is even less safe, because you are assuming a is going to be allocated to that address every time, which is absolutely not a safe assumption.