Unknown cin properties : <p>Try as I might, I cannot find any information on what <code>cin.binary</code> is for.  </p>

<p>similar ones, thinking bases, dec, hex, octal only seem to appear when used with cout - e.g.,</p>

<p><code>cout &lt;&lt; std::hex &lt;&lt; n;</code>.</p>

<p>However <code>cout &lt;&lt; std::binary &lt;&lt; n;</code> isn't valid</p>

<p>Entering <code>cin.</code> produces this intellisense popup</p>

<p><a href="https://i.stack.imgur.com/kURtK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/kURtK.png" alt="intellisense popup for &lt;code&gt;cin.&lt;/code&gt;"></a></p>

<p>I'm left assuming that these are some sort of flags. Sure would be nice to know for sure though.</p>
