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MindSpore Signal+ 使用手册
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<li class="breadcrumb-item active">Triu</li>
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<a href="../../_sources/functionlib/dsplib/triu.rst.txt" rel="nofollow"> 查看页面源码</a>
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<div itemprop="articleBody">
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<section id="triu">
|
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<h1>Triu<a class="headerlink" href="#triu" title="此标题的永久链接"></a></h1>
|
||
<p>返回输入张量的上三角部分，其余部分设置为零</p>
|
||
<p>对于输入形状为 <span class="math notranslate nohighlight">\((*, H, W)\)</span> 的张量，返回每个 <span class="math notranslate nohighlight">\(H \times W\)</span> 矩阵的上三角部分。</p>
|
||
<div class="math notranslate nohighlight">
|
||
\[\begin{split}\text{output}[i,j] = \begin{cases}
|
||
\text{input}[i,j], & \text{if } j \geq i + k \\
|
||
0, & \text{otherwise}
|
||
\end{cases}\end{split}\]</div>
|
||
<dl class="simple">
|
||
<dt>其中 <span class="math notranslate nohighlight">\(k\)</span> 为对角线偏移量：</dt><dd><ul class="simple">
|
||
<li><p><span class="math notranslate nohighlight">\(k = 0\)</span>：主对角线（默认）</p></li>
|
||
<li><p><span class="math notranslate nohighlight">\(k > 0\)</span>：主对角线上方第 k 条对角线</p></li>
|
||
<li><p><span class="math notranslate nohighlight">\(k < 0\)</span>：主对角线下方第 k 条对角线</p></li>
|
||
</ul>
|
||
</dd>
|
||
<dt>输入：</dt><dd><ul class="simple">
|
||
<li><p><strong>src</strong> - 输入数据地址。</p></li>
|
||
<li><p><strong>k</strong> - 对角线偏移量，默认为 0。</p></li>
|
||
<li><p><strong>height</strong> - 矩阵高度。</p></li>
|
||
<li><p><strong>width</strong> - 矩阵宽度。</p></li>
|
||
<li><p><strong>out_elems</strong> - 输出矩阵的数量（批量大小）。</p></li>
|
||
<li><p><strong>core_mask(int, 可选)</strong> - 核掩码（仅适用于共享存储版本）。</p></li>
|
||
</ul>
|
||
</dd>
|
||
<dt>输出：</dt><dd><ul class="simple">
|
||
<li><p><strong>dst</strong> - 计算结果地址。</p></li>
|
||
</ul>
|
||
</dd>
|
||
<dt>支持平台：</dt><dd><p><code class="docutils literal notranslate"><span class="pre">FT78NE</span></code>
|
||
<code class="docutils literal notranslate"><span class="pre">MT7004</span></code></p>
|
||
</dd>
|
||
</dl>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">备注</p>
|
||
<ul class="simple">
|
||
<li><p>FT78NE 支持int8, int16, int32, fp32, fp64, cplx64, cplx128</p></li>
|
||
<li><p>MT7004 支持fp16, fp32, int16, int32, cplx64</p></li>
|
||
</ul>
|
||
</div>
|
||
<p><strong>共享存储版本：</strong></p>
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.i8_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">i8_triu_s</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.i8_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.i16_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">i16_triu_s</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int16_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">int16_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.i16_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.i32_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">i32_triu_s</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.i32_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.hp_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">hp_triu_s</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.hp_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.fp_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">fp_triu_s</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.fp_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.dp_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">dp_triu_s</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.dp_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.c64_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">c64_triu_s</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.c64_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.c128_triu_s">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">c128_triu_s</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n"><span class="pre">core_mask</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.c128_triu_s" title="永久链接至目标"></a><br /></dt>
|
||
<dd><p><strong>C调用示例：</strong></p>
|
||
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="c1">//FT78NE示例</span>
|
||
<span class="linenos"> 2</span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><stdio.h></span>
|
||
<span class="linenos"> 3</span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><triu.h></span>
|
||
<span class="linenos"> 4</span>
|
||
<span class="linenos"> 5</span><span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">argc</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="o">*</span><span class="w"> </span><span class="n">argv</span><span class="p">[])</span><span class="w"> </span><span class="p">{</span>
|
||
<span class="linenos"> 6</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">input</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0xA0000000</span><span class="p">;</span><span class="w"> </span><span class="c1">//input在DDR空间</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">output</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0xB0000000</span><span class="p">;</span><span class="w"> </span><span class="c1">//output在DDR空间</span>
|
||
<span class="linenos"> 8</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">k</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 主对角线</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">height</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span><span class="w"> </span><span class="c1">// 矩阵高度</span>
|
||
<span class="linenos">10</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">width</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span><span class="w"> </span><span class="c1">// 矩阵宽度</span>
|
||
<span class="linenos">11</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">out_elems</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="c1">// 矩阵数量</span>
|
||
<span class="linenos">12</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">core_mask</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mh">0xff</span><span class="p">;</span>
|
||
<span class="hll"><span class="linenos">13</span><span class="w"> </span><span class="n">fp_triu_s</span><span class="p">(</span><span class="n">output</span><span class="p">,</span><span class="w"> </span><span class="n">input</span><span class="p">,</span><span class="w"> </span><span class="n">core_mask</span><span class="p">,</span><span class="w"> </span><span class="n">k</span><span class="p">,</span><span class="w"> </span><span class="n">height</span><span class="p">,</span><span class="w"> </span><span class="n">width</span><span class="p">,</span><span class="w"> </span><span class="n">out_elems</span><span class="p">);</span>
|
||
</span><span class="linenos">14</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<span class="linenos">15</span><span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<p><strong>私有存储版本：</strong></p>
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.i8_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">i8_triu_p</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">int8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.i8_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.i16_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">i16_triu_p</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int16_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">int16_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.i16_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.i32_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">i32_triu_p</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.i32_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.hp_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">hp_triu_p</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="n"><span class="pre">half</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.hp_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.fp_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">fp_triu_p</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.fp_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.dp_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">dp_triu_p</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span>, <span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.dp_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.c64_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">c64_triu_p</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.c64_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd></dd></dl>
|
||
|
||
<dl class="c function">
|
||
<dt class="sig sig-object c" id="c.c128_triu_p">
|
||
<span class="kt"><span class="pre">void</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">c128_triu_p</span></span></span><span class="sig-paren">(</span><span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">dst</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="p"><span class="pre">(</span></span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">src</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">[</span></span><span class="m"><span class="pre">2</span></span><span class="p"><span class="pre">]</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">k</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">height</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">width</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n"><span class="pre">out_elems</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.c128_triu_p" title="永久链接至目标"></a><br /></dt>
|
||
<dd><p><strong>C调用示例：</strong></p>
|
||
<div class="highlight-c notranslate"><div class="highlight"><pre><span></span><span class="linenos"> 1</span><span class="c1">//FT78NE示例</span>
|
||
<span class="linenos"> 2</span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><stdio.h></span>
|
||
<span class="linenos"> 3</span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><triu.h></span>
|
||
<span class="linenos"> 4</span>
|
||
<span class="linenos"> 5</span><span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">argc</span><span class="p">,</span><span class="w"> </span><span class="kt">char</span><span class="o">*</span><span class="w"> </span><span class="n">argv</span><span class="p">[])</span><span class="w"> </span><span class="p">{</span>
|
||
<span class="linenos"> 6</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">input</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10810000</span><span class="p">;</span><span class="w"> </span><span class="c1">//input在L2空间</span>
|
||
<span class="linenos"> 7</span><span class="w"> </span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="n">output</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">(</span><span class="kt">float</span><span class="w"> </span><span class="o">*</span><span class="p">)</span><span class="mh">0x10850000</span><span class="p">;</span><span class="w"> </span><span class="c1">//output在L2空间</span>
|
||
<span class="linenos"> 8</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">k</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 主对角线</span>
|
||
<span class="linenos"> 9</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">height</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span><span class="w"> </span><span class="c1">// 矩阵高度</span>
|
||
<span class="linenos">10</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">width</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">4</span><span class="p">;</span><span class="w"> </span><span class="c1">// 矩阵宽度</span>
|
||
<span class="linenos">11</span><span class="w"> </span><span class="kt">int64_t</span><span class="w"> </span><span class="n">out_elems</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="c1">// 矩阵数量</span>
|
||
<span class="hll"><span class="linenos">12</span><span class="w"> </span><span class="n">fp_triu_p</span><span class="p">(</span><span class="n">output</span><span class="p">,</span><span class="w"> </span><span class="n">input</span><span class="p">,</span><span class="w"> </span><span class="n">k</span><span class="p">,</span><span class="w"> </span><span class="n">height</span><span class="p">,</span><span class="w"> </span><span class="n">width</span><span class="p">,</span><span class="w"> </span><span class="n">out_elems</span><span class="p">);</span>
|
||
</span><span class="linenos">13</span><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
||
<span class="linenos">14</span><span class="p">}</span>
|
||
</pre></div>
|
||
</div>
|
||
</dd></dl>
|
||
|
||
<p><strong>示例说明：</strong></p>
|
||
<p>对于 4x4 矩阵，k=0 时的上三角输出示例:</p>
|
||
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>输入矩阵： 输出矩阵：
|
||
1 2 3 4 1 2 3 4
|
||
5 6 7 8 => 0 6 7 8
|
||
9 10 11 12 0 0 11 12
|
||
13 14 15 16 0 0 0 16
|
||
</pre></div>
|
||
</div>
|
||
<p>k=1 时（上移一条对角线）:</p>
|
||
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>输入矩阵： 输出矩阵：
|
||
1 2 3 4 0 2 3 4
|
||
5 6 7 8 => 0 0 7 8
|
||
9 10 11 12 0 0 0 12
|
||
13 14 15 16 0 0 0 0
|
||
</pre></div>
|
||
</div>
|
||
<p>k=-1 时（下移一条对角线）:</p>
|
||
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span>输入矩阵： 输出矩阵：
|
||
1 2 3 4 1 2 3 4
|
||
5 6 7 8 => 5 6 7 8
|
||
9 10 11 12 0 10 11 12
|
||
13 14 15 16 0 0 15 16
|
||
</pre></div>
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