Multiply an Integer with 3.5 using bitwise operation

 the following operation is actually  (2 *data) + data + (data/2).

#include <stdio.h>

int main()

{

  unsigned int data = 10; 

  

  data = (data<<1) + data + (data>>1);; // equivalent to data * 3.5

  

  printf("data = %d\n", data);

  

  return 0;

}