string to binary
<p>I convert a character to binary using <code>std::bitset&lt;CHAR_BIT&gt; binary('c');</code>
but this doesn't work for a string,</p>

<pre><code>std::string str = "MyString";
std::bitset&lt;SIZE_OF_STRING_IN_BITS&gt; binary(str); //Error Exception
</code></pre>

<p>what should be the alternative?</p>
