What are the differences between streampos and pos_type, streamoff and off_type?
<p>What are the differences between <code>streampos</code> and <code>pos_type</code>, <code>streamoff</code> and <code>off_type</code>, except they are defined differently. What should I use with the <code>basic_stream&lt;&gt;::seek</code>'s functions?</p>
