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Ah, pointers. Nothing strikes more fear into the heart of novice C programmers, or developers who aren’t used to them. Add to that the notion of double pointers (**) and address-of operators (&) and you are pretty much guaranteed to scare them away. But they are really not that hard, as long as you understand 3 things: A pointer contains a memory address value A pointer has a memory address of its own All parameters, including pointers, are copied with