title: Using string data type in strlwr()
body: <p>I have a problem when I use <code>string</code> as data type in <code>strlwr</code> for example:
  </p>
  
  <pre><code>string a;
  cout &lt;&lt; "Enter a":; 
  cin &gt;&gt; a;
  strlwr(a);
  </code></pre>
  
  <p>Suddenly I get an error!</p>
  
  <p>"[Error] C:\Users\PC\Documents\C-Free\Temp\Untitled7.cpp:7: E2285 Could not find a match for '_lstrlwr(string)' in function main()"</p>
  
  <p>Who can solve this problem?</p>