title: How to declare a function identifier
body: <p>If i have a sample code like this:</p>
  
  <pre><code>void func_1 {
  .......
  func_2;
  }
  func_2{
  .......
  }
  </code></pre>
  
  <p>I need to declare a function identifier for <code>func_2</code> so that the code could run how do i do that?</p>