Pointers in C

 Pointers in C:

This is available only in C language. Pointer points to the address of any variable, dynamic in nature and used in memory allocation purpose.

 Also, it is better to assign null value to a ptr as their is garbage value.

Syntax: type *var_name;

 

Example 1:

 

//program to show pointer in C

#include<stdio.h>

int main ( )

{

int var = 20;

int *ip;

 ip = &var;

printf ("address: %x\n",&var);

printf ("address stored in ip variable: %d \n",*ip);

return 0;

}

 

Example 2: