title: How to shift left one specific bit?
body: <p>I want to shift left only one bit in a specific place leaving its position <code>0</code>, so I do not want to shift the whole variable with <code>&lt;&lt;</code> operator, here is an example: say the variable has the value <code>1100 1010</code> and I want to shift the fourth bit then the result should be <code>1101 0010</code>.</p>