C Program for illustrating the pointer as a function
#include<stdio.h>
#include<conio.h>
void swap(int *,int *);
void main()
{
int a,b;
clrscr();
printf("Enter any two numbers for Swapping\n");
scanf("%d %d",&a,&b);
printf("you have Entered\na= %d;\nb= %d;\n",a,b);
swap(&a,&b);
printf("After Swapping the numbers are\na= %d;\nb= %d;\n",a,b);
getche();
}
void swap(int *x,int *y)
{
*x=*x + *y;
*y=*x - *y;
*x=*x - *y;
}
OUTPUT
Enter any two numbers for Swapping12
13
you have Entered
a= 12;
b= 13;
After Swapping the numbers are
a= 13;
b= 12;
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