title: Semicolon after double slash in C
body: <p>I have a question about comments in C language. 
  When we write for example</p>
  
  <pre><code>//this is the first step
  </code></pre>
  
  <p>This means a comment.</p>
  
  <p>But when we write</p>
  
  <pre><code>//this is the first step;
  </code></pre>
  
  <p>Does this also mean a comment? I mean when we add semicolon after double slash, does this mean a comment or main part of the program?</p>