title: Dereference a pointer inside a structure pointer
body: <p>I have a structure:</p>
  
  <pre><code>struct mystruct
  {
      int* pointer;
  };
  
  structure mystruct* struct_inst;
  </code></pre>
  
  <p>Now I want to change the value pointed to by <code>struct_inst-&gt;pointer</code>. How can I do that?</p>
  
  <p><strong>EDIT</strong></p>
  
  <p>I didn't write it, but <code>pointer</code> already points to an area of memory allocated with <code>malloc</code>.</p>