A pointer is simply a memory address and its concept is easy to understand.

Let us declare a variable num

int num;

Now let us declare another variable num_ptr

int *num_ptr = &num

num_ptr is declared as a pointer to int. We have initialized it to point to num as shown above.

type * variable name 

Example:

int *ptr; 
float *string;

int * is the notation for a pointer to an int. & is the operator which returns the address of its argument.

The opposite operator, which gives the value at the end of the pointer is *.

 

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