title: Warning: C4013 in C lang
body: <pre><code>#include &lt;stdio.h&gt;
  #include &lt;string.h&gt;
  
  
  void prints(char *menu)
  {
   int p = 0;
  
   p = navigation(p, menu);
  
  }
  
  int navigation(int p, char *menu)
  {
  
   return p;
  }
  
  void main(void)
  {
   char *menu[] = {"data", "coming", "here"};
  
   prints(*menu);
  
   printf("\n");
  
  }
  </code></pre>
  
  <p>How can i fix this the warning is:</p>
  
  <blockquote>
    <p>Warning 1 warning C4013: 'navigation'
    undefined; assuming extern returning
    int i:*\testingzone\index.c 9</p>
  </blockquote>