title: Function of curly bracket without keyword unclear
body: <p>I found in a programm that code fragment </p>
  
  <pre><code>   {
        Aux_U16 =  16;
  
     }
  </code></pre>
  
  <p>so the question is : why there a this curly brackets. No keyword like if or switch are visible.</p>
  
  <p>So what function have curly brakets in the programming language C, if they are written without any keyword</p>