Q : What do you mean by a pointer variable? Write a function in ‘C’, using pointers for the array of elements, for sorting the elements.
A pointer is a special type of variable which hold physical address of a non pointer variable.Symbol * is used to make a pointer variable. Programmer can change a variable value from another location with the help of pointer. Call reference is an example of pointer , in which a variable physical address pass to a function and any change made inside of function direct effect actual value of passed variable due to pointer.