Oct 3, 2011

C Program to multiply given number by 4 using bitwise operators

C Program to multiply given number by 4 using bitwise operators. Bitwise operators allows to cahnge or edit the specific bits within an integer. Program will multiply a given number by 4 using left shift(<<) bitwise operator. Read more about C Programming Language .


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/*    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);
}
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