><span id="EXCEPTIONScan_failure"><span class="keyword">exception</span> Scan_failure</span> <span class="keyword">of</span> <code class="type">string</code></pre>
<div class="info ">
<div class="info-desc">
<p>When the input can not be read according to the format string
    specification, formatted input functions typically raise exception
    <code class="code"><span class="constructor">Scan_failure</span></code>.</p>
</div>
</div>
<h2 id="1_Thegeneralformattedinputfunction">The general formatted input f