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<a href="#func-members">Functions</a> </div>
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<div class="headertitle"><div class="title">Vector Negate<div class="ingroups"><a class="el" href="group__groupMath.html">Basic Math Functions</a></div></div></div>
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</div><!--header-->
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<div class="contents">
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:gab1a26c4ced6ee0789142f04ec4ef2626"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicNegate.html#gab1a26c4ced6ee0789142f04ec4ef2626">arm_negate_f16</a> (const float16_t *pSrc, float16_t *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memdesc:gab1a26c4ced6ee0789142f04ec4ef2626"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a floating-point vector. <a href="group__BasicNegate.html#gab1a26c4ced6ee0789142f04ec4ef2626">More...</a><br /></td></tr>
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<tr class="separator:gab1a26c4ced6ee0789142f04ec4ef2626"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga7d9cfa32eafae01d3dbdcaf05052f431"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicNegate.html#ga7d9cfa32eafae01d3dbdcaf05052f431">arm_negate_f32</a> (const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pSrc, <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memdesc:ga7d9cfa32eafae01d3dbdcaf05052f431"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a floating-point vector. <a href="group__BasicNegate.html#ga7d9cfa32eafae01d3dbdcaf05052f431">More...</a><br /></td></tr>
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<tr class="separator:ga7d9cfa32eafae01d3dbdcaf05052f431"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaddb127985b486da740f3ec418ff00a80"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicNegate.html#gaddb127985b486da740f3ec418ff00a80">arm_negate_f64</a> (const <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *pSrc, <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memdesc:gaddb127985b486da740f3ec418ff00a80"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a floating-point vector. <a href="group__BasicNegate.html#gaddb127985b486da740f3ec418ff00a80">More...</a><br /></td></tr>
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<tr class="separator:gaddb127985b486da740f3ec418ff00a80"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga55b8bbbcd318d5142925bc221db30186"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicNegate.html#ga55b8bbbcd318d5142925bc221db30186">arm_negate_q15</a> (const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memdesc:ga55b8bbbcd318d5142925bc221db30186"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a Q15 vector. <a href="group__BasicNegate.html#ga55b8bbbcd318d5142925bc221db30186">More...</a><br /></td></tr>
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<tr class="separator:ga55b8bbbcd318d5142925bc221db30186"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gad5054d19c205eebab5f2c6e42d8cbb3c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicNegate.html#gad5054d19c205eebab5f2c6e42d8cbb3c">arm_negate_q31</a> (const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pSrc, <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memdesc:gad5054d19c205eebab5f2c6e42d8cbb3c"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a Q31 vector. <a href="group__BasicNegate.html#gad5054d19c205eebab5f2c6e42d8cbb3c">More...</a><br /></td></tr>
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<tr class="separator:gad5054d19c205eebab5f2c6e42d8cbb3c"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:gaea178c9f486ed4704f8723a2efee271c"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__BasicNegate.html#gaea178c9f486ed4704f8723a2efee271c">arm_negate_q7</a> (const <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pSrc, <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> *pDst, uint32_t <a class="el" href="arm__variance__example__f32_8c.html#ab6558f40a619c2502fbc24c880fd4fb0">blockSize</a>)</td></tr>
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<tr class="memdesc:gaea178c9f486ed4704f8723a2efee271c"><td class="mdescLeft"> </td><td class="mdescRight">Negates the elements of a Q7 vector. <a href="group__BasicNegate.html#gaea178c9f486ed4704f8723a2efee271c">More...</a><br /></td></tr>
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<tr class="separator:gaea178c9f486ed4704f8723a2efee271c"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Description</h2>
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<p >Negates the elements of a vector.</p>
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<pre>
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pDst[n] = -pSrc[n], 0 <= n < blockSize.
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</pre><p >The functions support in-place computation allowing the source and destination pointers to reference the same memory buffer. There are separate functions for floating-point, Q7, Q15, and Q31 data types. </p>
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<h2 class="groupheader">Function Documentation</h2>
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<a id="gab1a26c4ced6ee0789142f04ec4ef2626" name="gab1a26c4ced6ee0789142f04ec4ef2626"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gab1a26c4ced6ee0789142f04ec4ef2626">◆ </a></span>arm_negate_f16()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void arm_negate_f16 </td>
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<td>(</td>
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<td class="paramtype">const float16_t * </td>
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<td class="paramname"><em>pSrc</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">float16_t * </td>
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<td class="paramname"><em>pDst</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>blockSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input vector. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output vector. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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</div>
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</div>
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<a id="ga7d9cfa32eafae01d3dbdcaf05052f431" name="ga7d9cfa32eafae01d3dbdcaf05052f431"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga7d9cfa32eafae01d3dbdcaf05052f431">◆ </a></span>arm_negate_f32()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void arm_negate_f32 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
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<td class="paramname"><em>pSrc</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="arm__math__types_8h.html#a4611b605e45ab401f02cab15c5e38715">float32_t</a> * </td>
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<td class="paramname"><em>pDst</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>blockSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input vector. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output vector. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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</div>
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</div>
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<a id="gaddb127985b486da740f3ec418ff00a80" name="gaddb127985b486da740f3ec418ff00a80"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaddb127985b486da740f3ec418ff00a80">◆ </a></span>arm_negate_f64()</h2>
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<div class="memitem">
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<div class="memproto">
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<table class="memname">
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<tr>
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<td class="memname">void arm_negate_f64 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> * </td>
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<td class="paramname"><em>pSrc</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="arm__math__types_8h.html#ac55f3ae81b5bc9053760baacf57e47f4">float64_t</a> * </td>
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<td class="paramname"><em>pDst</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>blockSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to input vector. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to output vector. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>
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</div>
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</div>
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<h2 class="memtitle"><span class="permalink"><a href="#ga55b8bbbcd318d5142925bc221db30186">◆ </a></span>arm_negate_q15()</h2>
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<td class="memname">void arm_negate_q15 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
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<td class="paramname"><em>pSrc</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="arm__math__types_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> * </td>
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<td class="paramname"><em>pDst</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>blockSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to the input vector. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
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<dl class="section user"><dt>Conditions for optimum performance</dt><dd>Input and output buffers should be aligned by 32-bit </dd></dl>
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<dl class="section user"><dt>Scaling and Overflow Behavior</dt><dd>The function uses saturating arithmetic. The Q15 value -1 (0x8000) is saturated to the maximum allowable positive value 0x7FFF. </dd></dl>
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<a id="gad5054d19c205eebab5f2c6e42d8cbb3c" name="gad5054d19c205eebab5f2c6e42d8cbb3c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gad5054d19c205eebab5f2c6e42d8cbb3c">◆ </a></span>arm_negate_q31()</h2>
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<td class="memname">void arm_negate_q31 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
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<td class="paramname"><em>pSrc</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="arm__math__types_8h.html#adc89a3547f5324b7b3b95adec3806bc0">q31_t</a> * </td>
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<td class="paramname"><em>pDst</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>blockSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to the input vector. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
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<dl class="section user"><dt>Scaling and Overflow Behavior</dt><dd>The function uses saturating arithmetic. The Q31 value -1 (0x80000000) is saturated to the maximum allowable positive value 0x7FFFFFFF. </dd></dl>
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</div>
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</div>
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<a id="gaea178c9f486ed4704f8723a2efee271c" name="gaea178c9f486ed4704f8723a2efee271c"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaea178c9f486ed4704f8723a2efee271c">◆ </a></span>arm_negate_q7()</h2>
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<td class="memname">void arm_negate_q7 </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> * </td>
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<td class="paramname"><em>pSrc</em>, </td>
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</tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="arm__math__types_8h.html#ae541b6f232c305361e9b416fc9eed263">q7_t</a> * </td>
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<td class="paramname"><em>pDst</em>, </td>
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</tr>
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<tr>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">uint32_t </td>
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<td class="paramname"><em>blockSize</em> </td>
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</tr>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</tr>
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</table>
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</div><div class="memdoc">
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramdir">[in]</td><td class="paramname">pSrc</td><td>points to the input vector. </td></tr>
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<tr><td class="paramdir">[out]</td><td class="paramname">pDst</td><td>points to the output vector. </td></tr>
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<tr><td class="paramdir">[in]</td><td class="paramname">blockSize</td><td>number of samples in each vector. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd>none</dd></dl>
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<dl class="section user"><dt>Scaling and Overflow Behavior</dt><dd>The function uses saturating arithmetic. The Q7 value -1 (0x80) is saturated to the maximum allowable positive value 0x7F. </dd></dl>
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</div>
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