title: How to get string value of Tcl_Interp
body: <p>I have structure of <code>Tcl_Interp</code> for which I don't know what is holding. I tried to print a string value of <code>interp.result</code> but it's not returning anything. I am using this function:</p>
  
  <pre><code>void debug_state(char *state);
  </code></pre>
  
  <p>like this:</p>
  
  <pre><code>debug_state(Tcl_GetStringResult(g_game.tcl_interp));
  </code></pre>
  
  <p>but it isn't returning anything. Is there other way to see string value of <code>tcl_interp</code> other than <code>char *Tcl_GetStringResult(interp)</code></p>