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pointer (what is it, declaration of).

To put it in simple terms, a pointer is a memory address. The first thing you must do with a pointer, is to declare a pointer variable. Set it to point somewhere, and finally manipulate the value that it points to.

A simple pointer declaration can be:

int *ip;

The asterisk used means that the “ip”, the variable that you are declaring, is not of the “int” type, but a type of “pointer to an int” type.

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