title: How to "DELETE" a char * variable return by a function?
body: <p>The function prototype:</p>
  
  <pre><code>char * get_something();
  </code></pre>
  
  <p>Now we need to free the memory allocated by "get_something" function.</p>
  
  <p>delete or delete []?</p>
  
  <p>we have no information about the impl of the function -- array of char or single char</p>