er.t</a> -&gt; ('a, <a href="Buffer.html#TYPEt">Buffer.t</a>, unit, 'd) <a href="Pervasives.html#TYPEformat4">format4</a> -&gt; 'a</code></pre><div class="info ">
Same as <code class="code">bprintf</code>, but instead of returning immediately,
   passes the buffer to its first argument at the end of printing.<br>
<b>Since</b> 3.10.0<br>
</div>
<br>
Deprecated<br>

<pre><span id="VALkprintf"><span class="keyword">val</span> kprintf</span> : <code class="type">(string -&gt; 'b) -&gt; ('a, unit, string, 'b) <a