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镜像来自 https://github.com/g-truc/glm.git


			
				
					
						
						
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<div class="title">GLM_GTX_bit<div class="ingroups"><a class="el" href="a00161.html">GTX Extensions (Experimental)</a></div></div>  </div>
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Functions</h2></td></tr>
<tr class="memitem:ga0dcc8fe7c3d3ad60dea409281efa3d05"><td class="memTemplParams" colspan="2">template&lt;typename genIUType &gt; </td></tr>
<tr class="memitem:ga0dcc8fe7c3d3ad60dea409281efa3d05"><td class="memTemplItemLeft" align="right" valign="top">GLM_FUNC_DECL genIUType&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00186.html#ga0dcc8fe7c3d3ad60dea409281efa3d05">highestBitValue</a> (genIUType Value)</td></tr>
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<tr class="memitem:ga5eea3a4d429040af13d39a7d7cd84d73"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P, template&lt; typename, precision &gt; class vecType&gt; </td></tr>
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<tr class="memitem:ga8cda2459871f574a0aecbe702ac93291"><td class="memTemplParams" colspan="2">template&lt;typename genIUType &gt; </td></tr>
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<tr class="memitem:gafe08808a50226b75b50e640a08b32ddc"><td class="memTemplItemLeft" align="right" valign="top">GLM_DEPRECATED GLM_FUNC_DECL vecType&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00186.html#gafe08808a50226b75b50e640a08b32ddc">powerOfTwoAbove</a> (vecType&lt; T, P &gt; const &amp;value)</td></tr>
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<tr class="memitem:ga3de7df63c589325101a2817a56f8e29d"><td class="memTemplParams" colspan="2">template&lt;typename genIUType &gt; </td></tr>
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<tr class="memitem:gae33bb1ca2b55846b23a0f0796a679195"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P, template&lt; typename, precision &gt; class vecType&gt; </td></tr>
<tr class="memitem:gae33bb1ca2b55846b23a0f0796a679195"><td class="memTemplItemLeft" align="right" valign="top">GLM_DEPRECATED GLM_FUNC_DECL vecType&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00186.html#gae33bb1ca2b55846b23a0f0796a679195">powerOfTwoBelow</a> (vecType&lt; T, P &gt; const &amp;value)</td></tr>
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<tr class="memitem:ga5f65973a5d2ea38c719e6a663149ead9"><td class="memTemplParams" colspan="2">template&lt;typename genIUType &gt; </td></tr>
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<tr class="memitem:ga2d7e85995d097518b8d70cd409bda39e"><td class="memTemplParams" colspan="2">template&lt;typename T , precision P, template&lt; typename, precision &gt; class vecType&gt; </td></tr>
<tr class="memitem:ga2d7e85995d097518b8d70cd409bda39e"><td class="memTemplItemLeft" align="right" valign="top">GLM_DEPRECATED GLM_FUNC_DECL vecType&lt; T, P &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00186.html#ga2d7e85995d097518b8d70cd409bda39e">powerOfTwoNearest</a> (vecType&lt; T, P &gt; const &amp;value)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>Allow to perform bit operations on integer values. </p>
<p>&lt;<a class="el" href="a00008.html" title="OpenGL Mathematics (glm.g-truc.net) ">glm/gtx/bit.hpp</a>&gt; need to be included to use these functionalities. </p>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="ga0dcc8fe7c3d3ad60dea409281efa3d05"></a>
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          <td class="memname">GLM_FUNC_DECL genIUType glm::highestBitValue </td>
          <td>(</td>
          <td class="paramtype">genIUType&#160;</td>
          <td class="paramname"><em>Value</em></td><td>)</td>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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<a class="anchor" id="ga5eea3a4d429040af13d39a7d7cd84d73"></a>
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          <td>(</td>
          <td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
          <td class="paramname"><em>value</em></td><td>)</td>
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<p>Find the highest bit set to 1 in a integer variable and return its value. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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          <td class="memname">GLM_DEPRECATED GLM_FUNC_DECL genIUType glm::powerOfTwoAbove </td>
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          <td class="paramtype">genIUType&#160;</td>
          <td class="paramname"><em>Value</em></td><td>)</td>
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<p>Return the power of two number which value is just higher the input value. </p>
<p>Deprecated, use ceilPowerOfTwo from GTC_round instead</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00180.html" title="rounding value to specific boundings ">GLM_GTC_round</a> </dd>
<dd>
<a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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          <td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
          <td class="paramname"><em>value</em></td><td>)</td>
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<p>Return the power of two number which value is just higher the input value. </p>
<p>Deprecated, use ceilPowerOfTwo from GTC_round instead</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00180.html" title="rounding value to specific boundings ">GLM_GTC_round</a> </dd>
<dd>
<a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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          <td>(</td>
          <td class="paramtype">genIUType&#160;</td>
          <td class="paramname"><em>Value</em></td><td>)</td>
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<p>Return the power of two number which value is just lower the input value. </p>
<p>Deprecated, use floorPowerOfTwo from GTC_round instead</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00180.html" title="rounding value to specific boundings ">GLM_GTC_round</a> </dd>
<dd>
<a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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          <td>(</td>
          <td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
          <td class="paramname"><em>value</em></td><td>)</td>
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<p>Return the power of two number which value is just lower the input value. </p>
<p>Deprecated, use floorPowerOfTwo from GTC_round instead</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00180.html" title="rounding value to specific boundings ">GLM_GTC_round</a> </dd>
<dd>
<a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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          <td>(</td>
          <td class="paramtype">genIUType&#160;</td>
          <td class="paramname"><em>Value</em></td><td>)</td>
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<p>Return the power of two number which value is the closet to the input value. </p>
<p>Deprecated, use roundPowerOfTwo from GTC_round instead</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00180.html" title="rounding value to specific boundings ">GLM_GTC_round</a> </dd>
<dd>
<a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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</div>
<a class="anchor" id="ga2d7e85995d097518b8d70cd409bda39e"></a>
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          <td>(</td>
          <td class="paramtype">vecType&lt; T, P &gt; const &amp;&#160;</td>
          <td class="paramname"><em>value</em></td><td>)</td>
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<p>Return the power of two number which value is the closet to the input value. </p>
<p>Deprecated, use roundPowerOfTwo from GTC_round instead</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="a00180.html" title="rounding value to specific boundings ">GLM_GTC_round</a> </dd>
<dd>
<a class="el" href="a00186.html" title="Allow to perform bit operations on integer values. ">GLM_GTX_bit</a> </dd></dl>

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