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<td >Qt 5.9</td><td ><a href="qtcore-index.html">Qt Core</a></td><td ><QFloat16></td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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<h1 class="title"><QFloat16></h1>
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<p>This documentation was introduced in Qt 5.9.</p>
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<a name="Functions"></a>
<h2 id="Functions">Functions</h2>
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<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfloat16.html#qFuzzyCompare">qFuzzyCompare</a></b>(qfloat16 <i>p1</i>, qfloat16 <i>p2</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfloat16.html#qIsFinite">qIsFinite</a></b>(qfloat16 <i>f</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfloat16.html#qIsInf">qIsInf</a></b>(qfloat16 <i>f</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="qfloat16.html#qIsNaN">qIsNaN</a></b>(qfloat16 <i>f</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> qint64 </td><td class="memItemRight bottomAlign"><b><a href="qfloat16.html#qRound64">qRound64</a></b>(qfloat16 <i>value</i>)</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> int </td><td class="memItemRight bottomAlign"><b><a href="qfloat16.html#qRound">qRound</a></b>(qfloat16 <i>value</i>)</td></tr>
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<p>This header file provides support for half-precision (16-bit) floating point data with the class <code>qfloat16</code>. It is fully compliant with IEEE 754 as a storage type. This implies that any arithmetic operation on a <code>qfloat16</code> instance results in the value first being converted to a <code>float</code>. This conversion to and from <code>float</code> is performed by hardware when possible, but on processors that do not natively support half-precision, the conversion is performed through a sequence of lookup table operations.</p>
<p><code>qfloat16</code> should be treated as if it were a POD (plain old data) type. Consequently, none of the supported operations need any elaboration beyond stating that it supports all arithmetic operators incident to floating point types.</p>
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<h2>Function Documentation</h2>
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<h3 class="fn" id="qFuzzyCompare"><a name="qFuzzyCompare"></a><span class="type">bool</span> <span class="name">qFuzzyCompare</span>(<span class="type">qfloat16</span> <i>p1</i>, <span class="type">qfloat16</span> <i>p2</i>)</h3>
<p>Compares the floating point value <i>p1</i> and <i>p2</i> and returns <code>true</code> if they are considered equal, otherwise <code>false</code>.</p>
<p>The two numbers are compared in a relative way, where the exactness is stronger the smaller the numbers are.</p>
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<h3 class="fn" id="qIsFinite"><a name="qIsFinite"></a><span class="type">bool</span> <span class="name">qIsFinite</span>(<span class="type">qfloat16</span> <i>f</i>)</h3>
<p>Returns true if the <code>qfloat16</code> <i>f</i> is a finite number.</p>
<p><b>See also </b>qIsFinite.</p>
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<h3 class="fn" id="qIsInf"><a name="qIsInf"></a><span class="type">bool</span> <span class="name">qIsInf</span>(<span class="type">qfloat16</span> <i>f</i>)</h3>
<p>Returns true if the <code>qfloat16</code> <i>f</i> is equivalent to infinity.</p>
<p><b>See also </b>qIsInf.</p>
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<h3 class="fn" id="qIsNaN"><a name="qIsNaN"></a><span class="type">bool</span> <span class="name">qIsNaN</span>(<span class="type">qfloat16</span> <i>f</i>)</h3>
<p>Returns true if the <code>qfloat16</code> <i>f</i> is not a number (NaN).</p>
<p><b>See also </b>qIsNaN.</p>
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<h3 class="fn" id="qRound64"><a name="qRound64"></a><span class="type"><a href="qtglobal.html#qint64-typedef">qint64</a></span> <span class="name">qRound64</span>(<span class="type">qfloat16</span> <i>value</i>)</h3>
<p>Rounds <i>value</i> to the nearest 64-bit integer.</p>
<p><b>See also </b>qRound64.</p>
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<h3 class="fn" id="qRound"><a name="qRound"></a><span class="type">int</span> <span class="name">qRound</span>(<span class="type">qfloat16</span> <i>value</i>)</h3>
<p>Rounds <i>value</i> to the nearest integer.</p>
<p><b>See also </b>qRound.</p>
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