Pointer to pointer clarification

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Forget for a second about the pointing analogy. What a pointer really contains is a memory address. The & is the “address of” operator – i.e. it returns the address in memory of an object. The * operator gives you the object a pointer refers to, i.e. given a pointer containing an address, it returns the object at that memory address. So when you do *ipp = ip2, what you are doing is *ipp get the object at the address held in ipp which is ip1 and then assign to ip1 the value stored in ip2, which is the address of j.

Simply
& –> Address of
* –> Value at

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