</span><span class="special">;</span></pre>
<p>Default constructor </p>
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<pre class="literallayout"><span class="keyword">explicit</span> <a name="idm24720-bb"></a><span class="identifier">basic_clock</span><span class="special">(</span><a class="link" href="cast_source.html" title="Class cast_source">cast_source</a> <span class="keyword">const</span> <span class="special">&amp;</span> source<span class="special">)</span><span class="special">;</span></pre>
<p>Constructor for cast