</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno">   39</span>    <span class="keyword">auto</span> h1 = std::hash&lt;T1&gt;{}(p.first);</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno">   40</span>    <span class="keyword">auto</span> h2 = std::hash&lt;T2&gt;{}(p.second);</div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno">   41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno">   42</spa