Essential Books

Address-of Operator

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For any object (i.e, variable, array, union, struct, pointer or function) the unary address operator can be used to access the address of that object.

Suppose that 

int i = 1;              
int *p = NULL;

So then a statement p = &i;, copies the address of the variable i to the pointer p.

It’s expressed as p points to i.

printf("%d\n", *p); prints 1, which is the value of i.

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Pointers:
* Pointers
* Allocating Memory
* Introduction
* Freeing Memory
* Common errors
* Reallocating Memory
* Dereferencing a Pointer
* Dereferencing a Pointer to a struct
* Const Pointers
* Function pointers
* Polymorphic behaviour with void pointers
* Initializing Pointers
* Address-of Operator
* void pointers as arguments and return values to standard functions
* Pointer Arithmetic
* Same Asterisk Different Meanings
* Pointer to Pointer
Table Of Contents