title: How to install C++ API documentation in Ubuntu 10.04?
body: <p>I have already installed gcc.</p>
  
  <p>for <code>man 2 cout</code></p>
  
  <pre><code>root@kota-laptop:/# man 2 cout
  No manual entry for cout in section 2
  
  root@kota-laptop:/# man 2 printf
  No manual entry for printf in section 2
  See 'man 7 undocumented' for help when manual pages are not available.
  </code></pre>