Multiply given number by 4 using bitwise operators

 /*    Write a c program to multiply given number by 4     *
  *    using bitwise operators                             */
 #include <stdio.h>
 void main()
 {
	long number, tempnum;
	printf("Enter an integer\n");
	scanf("%ld",&number);
	tempnum = number;
	number = number << 2;   /*left shift by two bits*/
	printf("%ld x 4 = %ld\n", tempnum,number);
}
/*------------------------------
Output
Enter an integer
15
15 x 4 = 60
RUN2
Enter an integer
262
262 x 4 = 1048
---------------------------------*/