html#VALstdin"><code class="code">stdin</code></a> as
    expected.</p>

<p>If the format <code class="code">fmt</code> has some <code class="code">%r</code> indications, the corresponding
    formatted input functions must be provided <em>before</em> receiver function
    <code class="code">f</code>. For instance, if <code class="code">read_elem</code> is an input function for values of type
    <code class="code">t</code>, then <code class="code">bscanf&nbsp;ic&nbsp;<span class="string">"%r;"</span>&nbsp;