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<div class="title">reduction_operation.cl File Reference</div> </div>
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<div class="textblock"><code>#include &quot;<a class="el" href="helpers_8h_source.xhtml">helpers.h</a>&quot;</code><br/>
</div>
<p><a href="reduction__operation_8cl_source.xhtml">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a48cc0583beba45dfba6d94fb6dc3c59a"><td class="memItemLeft" align="right" valign="top"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="reduction__operation_8cl.xhtml#a48cc0583beba45dfba6d94fb6dc3c59a">square_sum</a> (__global const <a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *input)</td></tr>
<tr class="memdesc:a48cc0583beba45dfba6d94fb6dc3c59a"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate square sum of a vector. <a href="#a48cc0583beba45dfba6d94fb6dc3c59a">More...</a><br/></td></tr>
<tr class="separator:a48cc0583beba45dfba6d94fb6dc3c59a"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ab0df00f5333da51860deb93deb44a782"><td class="memItemLeft" align="right" valign="top"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="reduction__operation_8cl.xhtml#ab0df00f5333da51860deb93deb44a782">sum</a> (__global const <a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *input)</td></tr>
<tr class="memdesc:ab0df00f5333da51860deb93deb44a782"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate sum of a vector. <a href="#ab0df00f5333da51860deb93deb44a782">More...</a><br/></td></tr>
<tr class="separator:ab0df00f5333da51860deb93deb44a782"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af8f01aa7a1c524a2a9e2674f2cbae54d"><td class="memItemLeft" align="right" valign="top">__kernel void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="reduction__operation_8cl.xhtml#af8f01aa7a1c524a2a9e2674f2cbae54d">reduction_operation</a> (__global uchar *src_ptr, uint src_stride_x, uint src_step_x, uint src_offset_first_element_in_bytes, __global uchar *partial_sum_ptr, uint partial_sum_stride_x, uint partial_sum_step_x, uint partial_sum_offset_first_element_in_bytes, __local <a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *local_sums)</td></tr>
<tr class="memdesc:af8f01aa7a1c524a2a9e2674f2cbae54d"><td class="mdescLeft">&#160;</td><td class="mdescRight">This kernel performs reduction given an operation. <a href="#af8f01aa7a1c524a2a9e2674f2cbae54d">More...</a><br/></td></tr>
<tr class="separator:af8f01aa7a1c524a2a9e2674f2cbae54d"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="af8f01aa7a1c524a2a9e2674f2cbae54d"></a>
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<td class="memname">__kernel void reduction_operation </td>
<td>(</td>
<td class="paramtype">__global uchar *&#160;</td>
<td class="paramname"><em>src_ptr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint&#160;</td>
<td class="paramname"><em>src_stride_x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint&#160;</td>
<td class="paramname"><em>src_step_x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint&#160;</td>
<td class="paramname"><em>src_offset_first_element_in_bytes</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">__global uchar *&#160;</td>
<td class="paramname"><em>partial_sum_ptr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint&#160;</td>
<td class="paramname"><em>partial_sum_stride_x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint&#160;</td>
<td class="paramname"><em>partial_sum_step_x</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint&#160;</td>
<td class="paramname"><em>partial_sum_offset_first_element_in_bytes</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">__local <a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *&#160;</td>
<td class="paramname"><em>local_sums</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>This kernel performs reduction given an operation. </p>
<dl class="section note"><dt>Note</dt><dd>The data type must be passed at compile time using -DDATA_TYPE: e.g. -DDATA_TYPE=float </dd>
<dd>
The data size must be passed at compile time using -DDATA_SIZE e.g. -DDATA_SIZE=32 </dd>
<dd>
The operation we want to perform must be passed at compile time using -DOPERATION e.g. -DOPERATION=square_sum</dd></dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">src_ptr</td><td>Pointer to the source tensor. Supported data types: F32 </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">src_stride_x</td><td>Stride of the source tensor in X dimension (in bytes) </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">src_step_x</td><td>src_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">src_offset_first_element_in_bytes</td><td>The offset of the first element in the source tensor </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">partial_sum_ptr</td><td>The local buffer to hold sumed values. Supported data types: same as <code>src_ptt</code> </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">partial_sum_stride_x</td><td>Stride of the source tensor in X dimension (in bytes) </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">partial_sum_step_x</td><td>partial_sum_stride_x * number of elements along X processed per workitem(in bytes) </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">partial_sum_offset_first_element_in_bytes</td><td>The offset of the first element in the source tensor </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">local_sums</td><td>Local buffer for storing the partioal sum </td></tr>
</table>
</dd>
</dl>
<p>Definition at line <a class="el" href="reduction__operation_8cl_source.xhtml#l00080">80</a> of file <a class="el" href="reduction__operation_8cl_source.xhtml">reduction_operation.cl</a>.</p>
<p>References <a class="el" href="helpers_8h_source.xhtml#l00087">CONVERT_TO_VECTOR_STRUCT</a>, <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, and <a class="el" href="helpers_8h_source.xhtml#l00125">Vector::ptr</a>.</p>
<div class="fragment"><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160;{</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <a class="code" href="struct_vector.xhtml">Vector</a> src = <a class="code" href="helpers_8h.xhtml#a527bfdf5eeb306f1cf01c4a8e29f38e0">CONVERT_TO_VECTOR_STRUCT</a>(src);</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160; <a class="code" href="struct_vector.xhtml">Vector</a> partial_sum = <a class="code" href="helpers_8h.xhtml#a527bfdf5eeb306f1cf01c4a8e29f38e0">CONVERT_TO_VECTOR_STRUCT</a>(partial_sum);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lsize = get_local_size(0);</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> lid = get_local_id(0);</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; local_sums[lid] = OPERATION((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)src.<a class="code" href="struct_vector.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a>);</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; barrier(CLK_LOCAL_MEM_FENCE);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; <span class="comment">// Perform parallel reduction</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">for</span>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = lsize &gt;&gt; 1; i &gt; 0; i &gt;&gt;= 1)</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; {</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160; <span class="keywordflow">if</span>(lid &lt; i)</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>&#160; {</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; local_sums[lid] += local_sums[lid + i];</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; }</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; barrier(CLK_LOCAL_MEM_FENCE);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160; }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>&#160;</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; <span class="keywordflow">if</span>(lid == 0)</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; ((__global <a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *)partial_sum.<a class="code" href="struct_vector.xhtml#acf52c23cbd7424606c10a606524e3e32">ptr</a> + get_group_id(0))[0] = local_sums[0];</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160; }</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>&#160;}<div class="ttc" id="struct_vector_xhtml"><div class="ttname"><a href="struct_vector.xhtml">Vector</a></div><div class="ttdoc">Structure to hold Vector information. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00123">helpers.h:123</a></div></div>
<div class="ttc" id="helpers_8h_xhtml_a527bfdf5eeb306f1cf01c4a8e29f38e0"><div class="ttname"><a href="helpers_8h.xhtml#a527bfdf5eeb306f1cf01c4a8e29f38e0">CONVERT_TO_VECTOR_STRUCT</a></div><div class="ttdeci">#define CONVERT_TO_VECTOR_STRUCT(name)</div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00087">helpers.h:87</a></div></div>
<div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
<div class="ttc" id="struct_vector_xhtml_acf52c23cbd7424606c10a606524e3e32"><div class="ttname"><a href="struct_vector.xhtml#acf52c23cbd7424606c10a606524e3e32">Vector::ptr</a></div><div class="ttdeci">__global uchar * ptr</div><div class="ttdoc">Pointer to the starting postion of the buffer. </div><div class="ttdef"><b>Definition:</b> <a href="helpers_8h_source.xhtml#l00125">helpers.h:125</a></div></div>
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<td class="memname"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> square_sum </td>
<td>(</td>
<td class="paramtype">__global const <a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *&#160;</td>
<td class="paramname"><em>input</em></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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</div><div class="memdoc">
<p>Calculate square sum of a vector. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>Pointer to the first pixel.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>square sum of vector. </dd></dl>
<p>Definition at line <a class="el" href="reduction__operation_8cl_source.xhtml#l00032">32</a> of file <a class="el" href="reduction__operation_8cl_source.xhtml">reduction_operation.cl</a>.</p>
<p>References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
<div class="fragment"><div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;{</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; in = vload16(0, input);</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; in *= in;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; in.s01234567 += in.s89ABCDEF;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; in.s0123 += in.s4567;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; in.s01 += in.s23;</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; return (in.s0 + in.s1);</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160;}</div>
<div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
<div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
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<td class="memname"><a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> sum </td>
<td>(</td>
<td class="paramtype">__global const <a class="el" href="convolution9x9_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a> *&#160;</td>
<td class="paramname"><em>input</em></td><td>)</td>
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<p>Calculate sum of a vector. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">input</td><td>Pointer to the first pixel.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>sum of vector. </dd></dl>
<p>Definition at line <a class="el" href="reduction__operation_8cl_source.xhtml#l00052">52</a> of file <a class="el" href="reduction__operation_8cl_source.xhtml">reduction_operation.cl</a>.</p>
<p>References <a class="el" href="convolution3x3_8cl_source.xhtml#l00027">DATA_TYPE</a>, and <a class="el" href="fixed__point_8h_source.xhtml#l00093">VEC_DATA_TYPE</a>.</p>
<p>Referenced by <a class="el" href="l2__normalize_8cl_source.xhtml#l00045">l2_normalize()</a>, <a class="el" href="_c_p_p_2_l2_normalize_8cpp_source.xhtml#l00051">arm_compute::test::validation::reference::l2_normalize()</a>, <a class="el" href="tests_2validation_2_fixed_point_8h_source.xhtml#l00668">functions::log()</a>, <a class="el" href="_helpers_8inl_source.xhtml#l00032">arm_compute::pixel_area_c1u8_clamp()</a>, <a class="el" href="_c_p_p_2_scale_8cpp_source.xhtml#l00039">arm_compute::test::validation::reference::scale()</a>, <a class="el" href="_fixed_point_8inl_source.xhtml#l00356">arm_compute::slog_qs16()</a>, <a class="el" href="_fixed_point_8inl_source.xhtml#l00323">arm_compute::slog_qs8()</a>, <a class="el" href="_c_p_p_2_softmax_layer_8cpp_source.xhtml#l00038">arm_compute::test::validation::reference::softmax_layer()</a>, <a class="el" href="softmax__layer_8cl_source.xhtml#l00250">softmax_layer_norm()</a>, <a class="el" href="softmax__layer_8cl_source.xhtml#l00166">softmax_layer_shift_exp_sum()</a>, <a class="el" href="_fixed_point_8inl_source.xhtml#l00300">arm_compute::sqexp_qs16()</a>, <a class="el" href="_fixed_point_8inl_source.xhtml#l00277">arm_compute::sqexp_qs8()</a>, <a class="el" href="_n_e_fixed_point_8inl_source.xhtml#l01584">arm_compute::vlog_qs16()</a>, <a class="el" href="_n_e_fixed_point_8inl_source.xhtml#l01545">arm_compute::vlog_qs8()</a>, <a class="el" href="_n_e_fixed_point_8inl_source.xhtml#l01662">arm_compute::vlogq_qs16()</a>, and <a class="el" href="_n_e_fixed_point_8inl_source.xhtml#l01623">arm_compute::vlogq_qs8()</a>.</p>
<div class="fragment"><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160;{</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; <a class="code" href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a>(<a class="code" href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a>, 16)</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; in = vload16(0, input);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160; in.s01234567 += in.s89ABCDEF;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160; in.s0123 += in.s4567;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160; in.s01 += in.s23;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160; return (in.s0 + in.s1);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160;}</div>
<div class="ttc" id="convolution3x3_8cl_xhtml_afb8c72ce35c4a1f4a2588d6573e54aa1"><div class="ttname"><a href="convolution3x3_8cl.xhtml#afb8c72ce35c4a1f4a2588d6573e54aa1">DATA_TYPE</a></div><div class="ttdeci">#define DATA_TYPE</div><div class="ttdef"><b>Definition:</b> <a href="convolution3x3_8cl_source.xhtml#l00027">convolution3x3.cl:27</a></div></div>
<div class="ttc" id="fixed__point_8h_xhtml_a36f754c05b6fddf6df0d8d0a74f8159f"><div class="ttname"><a href="fixed__point_8h.xhtml#a36f754c05b6fddf6df0d8d0a74f8159f">VEC_DATA_TYPE</a></div><div class="ttdeci">#define VEC_DATA_TYPE(type, size)</div><div class="ttdef"><b>Definition:</b> <a href="fixed__point_8h_source.xhtml#l00093">fixed_point.h:93</a></div></div>
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