> -&gt; int -&gt; bytes -&gt; int -&gt; int -&gt; unit</code></pre><div class="info ">
<code class="code"><span class="constructor">Buffer</span>.blit src srcoff dst dstoff len</code> copies <code class="code">len</code> characters from
   the current contents of the buffer <code class="code">src</code>, starting at offset <code class="code">srcoff</code>
   to <code class="code">dst</code>, starting at character <code class="code">dstoff</code>.
<p>

   Raise <code class="code"><span class="constructor">In