murder_a2z wrote:
>
> what is pointer and how to use them
>
>
A pointer is a variable that holds the memory address of another
object. For
example, if a variable called p contains the address of another variable
called q,
then p is said to point to q. Therefore if q is at location 100 in
memory, then p
would have the value 100.
To declare a pointer variable, use this general form:
type *var-name; (int *p;)
Here, type is the base type of the pointer. The base type specifies the
type
of the object that the pointer can point to.
C contains two special pointer operators: * and &. The & operator
returns the
address of the variable it precedes. The * operator returns the value
stored at
the address that it precedes.
