Is the first operation supposed to be faster and if so then Why?
<p>Is the first opeartion faster than the second one ?</p>

<pre><code>  u+= (u &lt;&lt; 3) + (u &lt;&lt; 1) //first operation
  u+= u*10  //second operation 
</code></pre>

<p>Basically both of them does the same thing that is <code>u= u+(10*u)</code>
But i came to knew that first operation is faster than second .
Does the cpu time when operation + different from * . <code>Is multiplication by 10 
actually equivalent to 10 addition operations being performed ?</code></p>
