irst element of a <code class="computeroutput">std::pair&lt;&gt;</code>.</p>
<div class="refsect2">
<a name="idp135279984"></a><h3>
<a name="idp89317648-bb"></a><code class="computeroutput">first</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Pair<span class="special">&gt;</span> 
  <span class="keyword">t