rinted is date is invalid. </li>
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<pre class="literallayout"><span class="keyword">static</span> <span class="keyword">const</span> <span class="keyword">wchar_t</span> <span class="special">*</span> <a name="idp28788256-bb"></a><span class="identifier">pos_infinity</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>String used to for positive infinity value. </li>
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<pre class="literallayout"><span class="keyword">s