The document contains two C programming examples demonstrating the use of pointers. The first example declares an integer variable a, assigns its memory address to a pointer variable p, and prints the value of a, address of a, value of p, and address of p. The second example defines a function greater that takes two integer pointers as arguments, dereferences them to compare the values, and prints which one is greater.

1. C- PROGRAMMING
POINTER

2. EXTRA

3. EXTRA

4. EXTRA

5. #include<stdio.h>
#include<conio.h>
void main()
{
int a=5,*p;
p=&a;
clrscr();
printf(“Value of a = %dn” ,a);
printf(“Address of a = %un” ,p);
printf(“Value of *p = %dn” ,*p);
printf(“Address of p = %un” ,&p);
getch();
}
EXTRA

6. EXTRA

7. #include<stdio.h>
#include<conio.h>
void greater(int*, int*);
void main()
{
int a,b;
clrscr();
printf(“Enter the value of a & bn”);
scanf(“%d%d”,&a,&b);
greater(&a,&b);
getch();
}
void greater(int *a, int *b)
{
if(*a>*b)
{
printf(“a is greater then b”);
}
else
{
printf(“b is greater then a”);
}
}
EXTRA