cause it does not require any data buffer at application module. The file pointer of the file object increases in number of bytes forwarded. In case of <tt class="arg">*bf</tt> is less than <tt class="arg">btf</tt> without error, it means the requested bytes could not be transferred due to end of file or stream goes busy during data transfer.</p>
</div>


<div class="para comp">
<h4>QuickInfo</h4>
<p>Available when <tt>_USE_FORWARD == 1</tt> and <tt>_FS_TINY == 1</tt>.</p>
</div>


<div class="para use">
<h