// 1. Write a program in C to demonstrate the use of & (address of) and *(value at address) operator.
#include <stdio.h>
void main()
{
int m=300;
float fx = 300.60;
char cht = 'z';
int *pt1;
float *pt2;
char *pt3;
printf("\n\n Pointer : Demonstrate the use of & and * operator :\n");
printf("--------------------------------------------------------\n");
pt1= &m;
pt2=&fx;
pt3=&cht;
printf ( " m = %d\n",m);
printf ( " fx = %f\n",fx);
printf ( " cht = %c\n",cht);
printf("\n Using & operator :\n");
printf("-----------------------\n");
printf ( " address of m = %p\n",&m);
printf ( " address of fx = %p\n",&fx);
printf ( " address of cht = %p\n",&cht);
printf("\n Using & and * operator :\n");
printf("-----------------------------\n");
printf ( " value at address of m = %d\n",*(&m));
printf ( " value at address of fx = %f\n",*(&fx));
printf ( " value at address of cht = %c\n",*(&cht));
printf("\n Using only pointer variable :\n");
printf("----------------------------------\n");
printf ( " address of m = %p\n",pt1);
printf ( " address of fx = %p\n",pt2);
printf ( " address of cht = %p\n",pt3);
printf("\n Using only pointer operator :\n");
printf("----------------------------------\n");
printf ( " value at address of m = %d\n",*pt1);
printf ( " value at address of fx= %f\n",*pt2);
printf ( " value at address of cht= %c\n\n",*pt3);
}
