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<!DOCTYPE html>
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<title>arrayfire.array — ArrayFire Python documentation</title>
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<h1>Source code for arrayfire.array</h1><div class="highlight"><pre>
<span></span><span class="c1">#######################################################</span>
<span class="c1"># Copyright (c) 2015, ArrayFire</span>
<span class="c1"># All rights reserved.</span>
<span class="c1">#</span>
<span class="c1"># This file is distributed under 3-clause BSD license.</span>
<span class="c1"># The complete license agreement can be obtained at:</span>
<span class="c1"># http://arrayfire.com/licenses/BSD-3-Clause</span>
<span class="c1">########################################################</span>
<span class="sd">"""</span>
<span class="sd">Array class and helper functions.</span>
<span class="sd">"""</span>
<span class="kn">import</span> <span class="nn">inspect</span>
<span class="kn">import</span> <span class="nn">os</span>
<span class="kn">from</span> <span class="nn">.library</span> <span class="kn">import</span> <span class="o">*</span>
<span class="kn">from</span> <span class="nn">.util</span> <span class="kn">import</span> <span class="o">*</span>
<span class="kn">from</span> <span class="nn">.util</span> <span class="kn">import</span> <span class="n">_is_number</span>
<span class="kn">from</span> <span class="nn">.bcast</span> <span class="kn">import</span> <span class="n">_bcast_var</span>
<span class="kn">from</span> <span class="nn">.base</span> <span class="kn">import</span> <span class="o">*</span>
<span class="kn">from</span> <span class="nn">.index</span> <span class="kn">import</span> <span class="o">*</span>
<span class="kn">from</span> <span class="nn">.index</span> <span class="kn">import</span> <span class="n">_Index4</span>
<span class="n">_is_running_in_py_charm</span> <span class="o">=</span> <span class="s2">"PYCHARM_HOSTED"</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">environ</span>
<span class="n">_display_dims_limit</span> <span class="o">=</span> <span class="kc">None</span>
<div class="viewcode-block" id="set_display_dims_limit"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.set_display_dims_limit">[docs]</a><span class="k">def</span> <span class="nf">set_display_dims_limit</span><span class="p">(</span><span class="o">*</span><span class="n">dims</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Sets the dimension limit after which array's data won't get</span>
<span class="sd"> presented to the result of str(arr).</span>
<span class="sd"> Default is None, which means there is no limit.</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> *dims : dimension limit args</span>
<span class="sd"> Example</span>
<span class="sd"> -------</span>
<span class="sd"> set_display_dims_limit(10, 10, 10, 10)</span>
<span class="sd"> """</span>
<span class="k">global</span> <span class="n">_display_dims_limit</span>
<span class="n">_display_dims_limit</span> <span class="o">=</span> <span class="n">dims</span></div>
<div class="viewcode-block" id="get_display_dims_limit"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.get_display_dims_limit">[docs]</a><span class="k">def</span> <span class="nf">get_display_dims_limit</span><span class="p">():</span>
<span class="sd">"""</span>
<span class="sd"> Gets the dimension limit after which array's data won't get</span>
<span class="sd"> presented to the result of str(arr).</span>
<span class="sd"> Default is None, which means there is no limit.</span>
<span class="sd"> Returns</span>
<span class="sd"> -----------</span>
<span class="sd"> - tuple of the current limit</span>
<span class="sd"> - None is there is no limit</span>
<span class="sd"> Example</span>
<span class="sd"> -------</span>
<span class="sd"> get_display_dims_limit()</span>
<span class="sd"> # None</span>
<span class="sd"> set_display_dims_limit(10, 10, 10, 10)</span>
<span class="sd"> get_display_dims_limit()</span>
<span class="sd"> # (10, 10, 10, 10)</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_display_dims_limit</span></div>
<span class="k">def</span> <span class="nf">_in_display_dims_limit</span><span class="p">(</span><span class="n">dims</span><span class="p">):</span>
<span class="k">if</span> <span class="n">_is_running_in_py_charm</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">if</span> <span class="n">_display_dims_limit</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">limit_len</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">_display_dims_limit</span><span class="p">)</span>
<span class="n">dim_len</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">dims</span><span class="p">)</span>
<span class="k">if</span> <span class="n">dim_len</span> <span class="o">></span> <span class="n">limit_len</span><span class="p">:</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">dim_len</span><span class="p">):</span>
<span class="k">if</span> <span class="n">dims</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">></span> <span class="n">_display_dims_limit</span><span class="p">[</span><span class="n">i</span><span class="p">]:</span>
<span class="k">return</span> <span class="kc">False</span>
<span class="k">return</span> <span class="kc">True</span>
<span class="k">def</span> <span class="nf">_create_array</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span><span class="p">,</span> <span class="n">dtype</span><span class="p">,</span> <span class="n">is_device</span><span class="p">):</span>
<span class="n">out_arr</span> <span class="o">=</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">c_dims</span> <span class="o">=</span> <span class="n">dim4</span><span class="p">(</span><span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
<span class="k">if</span> <span class="p">(</span><span class="ow">not</span> <span class="n">is_device</span><span class="p">):</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_create_array</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out_arr</span><span class="p">),</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="n">buf</span><span class="p">),</span>
<span class="n">numdims</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">c_dims</span><span class="p">),</span> <span class="n">dtype</span><span class="o">.</span><span class="n">value</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_device_array</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out_arr</span><span class="p">),</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="n">buf</span><span class="p">),</span>
<span class="n">numdims</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">c_dims</span><span class="p">),</span> <span class="n">dtype</span><span class="o">.</span><span class="n">value</span><span class="p">))</span>
<span class="k">return</span> <span class="n">out_arr</span>
<span class="k">def</span> <span class="nf">_create_strided_array</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span><span class="p">,</span> <span class="n">dtype</span><span class="p">,</span> <span class="n">is_device</span><span class="p">,</span> <span class="n">offset</span><span class="p">,</span> <span class="n">strides</span><span class="p">):</span>
<span class="n">out_arr</span> <span class="o">=</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">c_dims</span> <span class="o">=</span> <span class="n">dim4</span><span class="p">(</span><span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
<span class="k">if</span> <span class="n">offset</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">offset</span> <span class="o">=</span> <span class="mi">0</span>
<span class="n">offset</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="n">offset</span><span class="p">)</span>
<span class="k">if</span> <span class="n">strides</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">strides</span> <span class="o">=</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">*</span><span class="n">idims</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span><span class="o">*</span><span class="n">idims</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">*</span><span class="n">idims</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="k">while</span> <span class="nb">len</span><span class="p">(</span><span class="n">strides</span><span class="p">)</span> <span class="o"><</span> <span class="mi">4</span><span class="p">:</span>
<span class="n">strides</span> <span class="o">=</span> <span class="n">strides</span> <span class="o">+</span> <span class="p">(</span><span class="n">strides</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">],)</span>
<span class="n">strides</span> <span class="o">=</span> <span class="n">dim4</span><span class="p">(</span><span class="n">strides</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">strides</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">strides</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="n">strides</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
<span class="k">if</span> <span class="n">is_device</span><span class="p">:</span>
<span class="n">location</span> <span class="o">=</span> <span class="n">Source</span><span class="o">.</span><span class="n">device</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">location</span> <span class="o">=</span> <span class="n">Source</span><span class="o">.</span><span class="n">host</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_create_strided_array</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out_arr</span><span class="p">),</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="n">buf</span><span class="p">),</span>
<span class="n">offset</span><span class="p">,</span> <span class="n">numdims</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">c_dims</span><span class="p">),</span>
<span class="n">c_pointer</span><span class="p">(</span><span class="n">strides</span><span class="p">),</span> <span class="n">dtype</span><span class="o">.</span><span class="n">value</span><span class="p">,</span>
<span class="n">location</span><span class="o">.</span><span class="n">value</span><span class="p">))</span>
<span class="k">return</span> <span class="n">out_arr</span>
<span class="k">def</span> <span class="nf">_create_empty_array</span><span class="p">(</span><span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span><span class="p">,</span> <span class="n">dtype</span><span class="p">):</span>
<span class="n">out_arr</span> <span class="o">=</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="k">if</span> <span class="n">numdims</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span> <span class="k">return</span> <span class="n">out_arr</span>
<span class="n">c_dims</span> <span class="o">=</span> <span class="n">dim4</span><span class="p">(</span><span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_create_handle</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out_arr</span><span class="p">),</span>
<span class="n">numdims</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">c_dims</span><span class="p">),</span> <span class="n">dtype</span><span class="o">.</span><span class="n">value</span><span class="p">))</span>
<span class="k">return</span> <span class="n">out_arr</span>
<div class="viewcode-block" id="constant_array"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.constant_array">[docs]</a><span class="k">def</span> <span class="nf">constant_array</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="n">d0</span><span class="p">,</span> <span class="n">d1</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">d2</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">d3</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="n">Dtype</span><span class="o">.</span><span class="n">f32</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Internal function to create a C array. Should not be used externall.</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dtype</span><span class="p">,</span> <span class="n">c_int_t</span><span class="p">):</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dtype</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span>
<span class="n">dtype</span> <span class="o">=</span> <span class="n">c_int_t</span><span class="p">(</span><span class="n">dtype</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dtype</span><span class="p">,</span> <span class="n">Dtype</span><span class="p">):</span>
<span class="n">dtype</span> <span class="o">=</span> <span class="n">c_int_t</span><span class="p">(</span><span class="n">dtype</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"Invalid dtype"</span><span class="p">)</span>
<span class="n">out</span> <span class="o">=</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">dims</span> <span class="o">=</span> <span class="n">dim4</span><span class="p">(</span><span class="n">d0</span><span class="p">,</span> <span class="n">d1</span><span class="p">,</span> <span class="n">d2</span><span class="p">,</span> <span class="n">d3</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">val</span><span class="p">,</span> <span class="nb">complex</span><span class="p">):</span>
<span class="n">c_real</span> <span class="o">=</span> <span class="n">c_double_t</span><span class="p">(</span><span class="n">val</span><span class="o">.</span><span class="n">real</span><span class="p">)</span>
<span class="n">c_imag</span> <span class="o">=</span> <span class="n">c_double_t</span><span class="p">(</span><span class="n">val</span><span class="o">.</span><span class="n">imag</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">dtype</span><span class="o">.</span><span class="n">value</span> <span class="o">!=</span> <span class="n">Dtype</span><span class="o">.</span><span class="n">c32</span><span class="o">.</span><span class="n">value</span> <span class="ow">and</span> <span class="n">dtype</span><span class="o">.</span><span class="n">value</span> <span class="o">!=</span> <span class="n">Dtype</span><span class="o">.</span><span class="n">c64</span><span class="o">.</span><span class="n">value</span><span class="p">):</span>
<span class="n">dtype</span> <span class="o">=</span> <span class="n">Dtype</span><span class="o">.</span><span class="n">c32</span><span class="o">.</span><span class="n">value</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_constant_complex</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="p">),</span> <span class="n">c_real</span><span class="p">,</span> <span class="n">c_imag</span><span class="p">,</span>
<span class="mi">4</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">dims</span><span class="p">),</span> <span class="n">dtype</span><span class="p">))</span>
<span class="k">elif</span> <span class="n">dtype</span><span class="o">.</span><span class="n">value</span> <span class="o">==</span> <span class="n">Dtype</span><span class="o">.</span><span class="n">s64</span><span class="o">.</span><span class="n">value</span><span class="p">:</span>
<span class="n">c_val</span> <span class="o">=</span> <span class="n">c_longlong_t</span><span class="p">(</span><span class="n">val</span><span class="o">.</span><span class="n">real</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_constant_long</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="p">),</span> <span class="n">c_val</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">dims</span><span class="p">)))</span>
<span class="k">elif</span> <span class="n">dtype</span><span class="o">.</span><span class="n">value</span> <span class="o">==</span> <span class="n">Dtype</span><span class="o">.</span><span class="n">u64</span><span class="o">.</span><span class="n">value</span><span class="p">:</span>
<span class="n">c_val</span> <span class="o">=</span> <span class="n">c_ulonglong_t</span><span class="p">(</span><span class="n">val</span><span class="o">.</span><span class="n">real</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_constant_ulong</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="p">),</span> <span class="n">c_val</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">dims</span><span class="p">)))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">c_val</span> <span class="o">=</span> <span class="n">c_double_t</span><span class="p">(</span><span class="n">val</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_constant</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="p">),</span> <span class="n">c_val</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">dims</span><span class="p">),</span> <span class="n">dtype</span><span class="p">))</span>
<span class="k">return</span> <span class="n">out</span></div>
<span class="k">def</span> <span class="nf">_binary_func</span><span class="p">(</span><span class="n">lhs</span><span class="p">,</span> <span class="n">rhs</span><span class="p">,</span> <span class="n">c_func</span><span class="p">):</span>
<span class="n">out</span> <span class="o">=</span> <span class="n">Array</span><span class="p">()</span>
<span class="n">other</span> <span class="o">=</span> <span class="n">rhs</span>
<span class="k">if</span> <span class="p">(</span><span class="n">_is_number</span><span class="p">(</span><span class="n">rhs</span><span class="p">)):</span>
<span class="n">ldims</span> <span class="o">=</span> <span class="n">dim4_to_tuple</span><span class="p">(</span><span class="n">lhs</span><span class="o">.</span><span class="n">dims</span><span class="p">())</span>
<span class="n">rty</span> <span class="o">=</span> <span class="n">implicit_dtype</span><span class="p">(</span><span class="n">rhs</span><span class="p">,</span> <span class="n">lhs</span><span class="o">.</span><span class="n">type</span><span class="p">())</span>
<span class="n">other</span> <span class="o">=</span> <span class="n">Array</span><span class="p">()</span>
<span class="n">other</span><span class="o">.</span><span class="n">arr</span> <span class="o">=</span> <span class="n">constant_array</span><span class="p">(</span><span class="n">rhs</span><span class="p">,</span> <span class="n">ldims</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">ldims</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">ldims</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="n">ldims</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span> <span class="n">rty</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">elif</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">rhs</span><span class="p">,</span> <span class="n">Array</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"Invalid parameter to binary function"</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">c_func</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="o">.</span><span class="n">arr</span><span class="p">),</span> <span class="n">lhs</span><span class="o">.</span><span class="n">arr</span><span class="p">,</span> <span class="n">other</span><span class="o">.</span><span class="n">arr</span><span class="p">,</span> <span class="n">_bcast_var</span><span class="o">.</span><span class="n">get</span><span class="p">()))</span>
<span class="k">return</span> <span class="n">out</span>
<span class="k">def</span> <span class="nf">_binary_funcr</span><span class="p">(</span><span class="n">lhs</span><span class="p">,</span> <span class="n">rhs</span><span class="p">,</span> <span class="n">c_func</span><span class="p">):</span>
<span class="n">out</span> <span class="o">=</span> <span class="n">Array</span><span class="p">()</span>
<span class="n">other</span> <span class="o">=</span> <span class="n">lhs</span>
<span class="k">if</span> <span class="p">(</span><span class="n">_is_number</span><span class="p">(</span><span class="n">lhs</span><span class="p">)):</span>
<span class="n">rdims</span> <span class="o">=</span> <span class="n">dim4_to_tuple</span><span class="p">(</span><span class="n">rhs</span><span class="o">.</span><span class="n">dims</span><span class="p">())</span>
<span class="n">lty</span> <span class="o">=</span> <span class="n">implicit_dtype</span><span class="p">(</span><span class="n">lhs</span><span class="p">,</span> <span class="n">rhs</span><span class="o">.</span><span class="n">type</span><span class="p">())</span>
<span class="n">other</span> <span class="o">=</span> <span class="n">Array</span><span class="p">()</span>
<span class="n">other</span><span class="o">.</span><span class="n">arr</span> <span class="o">=</span> <span class="n">constant_array</span><span class="p">(</span><span class="n">lhs</span><span class="p">,</span> <span class="n">rdims</span><span class="p">[</span><span class="mi">0</span><span class="p">],</span> <span class="n">rdims</span><span class="p">[</span><span class="mi">1</span><span class="p">],</span> <span class="n">rdims</span><span class="p">[</span><span class="mi">2</span><span class="p">],</span> <span class="n">rdims</span><span class="p">[</span><span class="mi">3</span><span class="p">],</span> <span class="n">lty</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">elif</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">lhs</span><span class="p">,</span> <span class="n">Array</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"Invalid parameter to binary function"</span><span class="p">)</span>
<span class="n">c_func</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="o">.</span><span class="n">arr</span><span class="p">),</span> <span class="n">other</span><span class="o">.</span><span class="n">arr</span><span class="p">,</span> <span class="n">rhs</span><span class="o">.</span><span class="n">arr</span><span class="p">,</span> <span class="n">_bcast_var</span><span class="o">.</span><span class="n">get</span><span class="p">())</span>
<span class="k">return</span> <span class="n">out</span>
<span class="k">def</span> <span class="nf">_ctype_to_lists</span><span class="p">(</span><span class="n">ctype_arr</span><span class="p">,</span> <span class="n">dim</span><span class="p">,</span> <span class="n">shape</span><span class="p">,</span> <span class="n">offset</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
<span class="k">if</span> <span class="p">(</span><span class="n">dim</span> <span class="o">==</span> <span class="mi">0</span><span class="p">):</span>
<span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="n">ctype_arr</span><span class="p">[</span><span class="n">offset</span> <span class="p">:</span> <span class="n">offset</span> <span class="o">+</span> <span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">]])</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">dim_len</span> <span class="o">=</span> <span class="n">shape</span><span class="p">[</span><span class="n">dim</span><span class="p">]</span>
<span class="n">res</span> <span class="o">=</span> <span class="p">[[]]</span> <span class="o">*</span> <span class="n">dim_len</span>
<span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">dim_len</span><span class="p">):</span>
<span class="n">res</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">_ctype_to_lists</span><span class="p">(</span><span class="n">ctype_arr</span><span class="p">,</span> <span class="n">dim</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">shape</span><span class="p">,</span> <span class="n">offset</span><span class="p">)</span>
<span class="n">offset</span> <span class="o">+=</span> <span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">return</span> <span class="n">res</span>
<span class="k">def</span> <span class="nf">_slice_to_length</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">dim</span><span class="p">):</span>
<span class="n">tkey</span> <span class="o">=</span> <span class="p">[</span><span class="n">key</span><span class="o">.</span><span class="n">start</span><span class="p">,</span> <span class="n">key</span><span class="o">.</span><span class="n">stop</span><span class="p">,</span> <span class="n">key</span><span class="o">.</span><span class="n">step</span><span class="p">]</span>
<span class="k">if</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">tkey</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">elif</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">tkey</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">dim</span> <span class="o">-</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
<span class="k">if</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">tkey</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">dim</span>
<span class="k">elif</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o"><</span> <span class="mi">0</span><span class="p">:</span>
<span class="n">tkey</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="n">dim</span> <span class="o">-</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
<span class="k">if</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">tkey</span><span class="p">[</span><span class="mi">2</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">return</span> <span class="nb">int</span><span class="p">(((</span><span class="n">tkey</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">-</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">/</span> <span class="n">tkey</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">_get_info</span><span class="p">(</span><span class="n">dims</span><span class="p">,</span> <span class="n">buf_len</span><span class="p">):</span>
<span class="n">elements</span> <span class="o">=</span> <span class="mi">1</span>
<span class="n">numdims</span> <span class="o">=</span> <span class="mi">0</span>
<span class="k">if</span> <span class="n">dims</span><span class="p">:</span>
<span class="n">numdims</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">dims</span><span class="p">)</span>
<span class="n">idims</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">*</span><span class="mi">4</span>
<span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">numdims</span><span class="p">):</span>
<span class="n">elements</span> <span class="o">*=</span> <span class="n">dims</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
<span class="n">idims</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="o">=</span> <span class="n">dims</span><span class="p">[</span><span class="n">i</span><span class="p">]</span>
<span class="k">elif</span> <span class="p">(</span><span class="n">buf_len</span> <span class="o">!=</span> <span class="mi">0</span><span class="p">):</span>
<span class="n">idims</span> <span class="o">=</span> <span class="p">[</span><span class="n">buf_len</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">]</span>
<span class="n">numdims</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s2">"Invalid size"</span><span class="p">)</span>
<span class="k">return</span> <span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span>
<span class="k">def</span> <span class="nf">_get_indices</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
<span class="n">inds</span> <span class="o">=</span> <span class="n">_Index4</span><span class="p">()</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">):</span>
<span class="n">n_idx</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
<span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n_idx</span><span class="p">):</span>
<span class="n">inds</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">Index</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">])</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">inds</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">Index</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
<span class="k">return</span> <span class="n">inds</span>
<span class="k">def</span> <span class="nf">_get_assign_dims</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">idims</span><span class="p">):</span>
<span class="n">dims</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="o">*</span><span class="mi">4</span>
<span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">idims</span><span class="p">)):</span>
<span class="n">dims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">idims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span>
<span class="k">if</span> <span class="n">_is_number</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
<span class="n">dims</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">return</span> <span class="n">dims</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="nb">slice</span><span class="p">):</span>
<span class="n">dims</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">_slice_to_length</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="k">return</span> <span class="n">dims</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">ParallelRange</span><span class="p">):</span>
<span class="n">dims</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">_slice_to_length</span><span class="p">(</span><span class="n">key</span><span class="o">.</span><span class="n">S</span><span class="p">,</span> <span class="n">idims</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="k">return</span> <span class="n">dims</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">BaseArray</span><span class="p">):</span>
<span class="c1"># If the array is boolean take only the number of nonzeros</span>
<span class="k">if</span><span class="p">(</span><span class="n">key</span><span class="o">.</span><span class="n">dtype</span><span class="p">()</span> <span class="ow">is</span> <span class="n">Dtype</span><span class="o">.</span><span class="n">b8</span><span class="p">):</span>
<span class="n">dims</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">sum</span><span class="p">(</span><span class="n">key</span><span class="p">))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">dims</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">=</span> <span class="n">key</span><span class="o">.</span><span class="n">elements</span><span class="p">()</span>
<span class="k">return</span> <span class="n">dims</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">):</span>
<span class="n">n_inds</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
<span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">n_inds</span><span class="p">):</span>
<span class="k">if</span> <span class="p">(</span><span class="n">_is_number</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">])):</span>
<span class="n">dims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">elif</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">],</span> <span class="n">BaseArray</span><span class="p">)):</span>
<span class="c1"># If the array is boolean take only the number of nonzeros</span>
<span class="k">if</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">]</span><span class="o">.</span><span class="n">dtype</span><span class="p">()</span> <span class="ow">is</span> <span class="n">Dtype</span><span class="o">.</span><span class="n">b8</span><span class="p">):</span>
<span class="n">dims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">sum</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">]))</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">dims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">]</span><span class="o">.</span><span class="n">elements</span><span class="p">()</span>
<span class="k">elif</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">],</span> <span class="nb">slice</span><span class="p">)):</span>
<span class="n">dims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">_slice_to_length</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">],</span> <span class="n">idims</span><span class="p">[</span><span class="n">n</span><span class="p">])</span>
<span class="k">elif</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">],</span> <span class="n">ParallelRange</span><span class="p">)):</span>
<span class="n">dims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">_slice_to_length</span><span class="p">(</span><span class="n">key</span><span class="p">[</span><span class="n">n</span><span class="p">]</span><span class="o">.</span><span class="n">S</span><span class="p">,</span> <span class="n">idims</span><span class="p">[</span><span class="n">n</span><span class="p">])</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"Invalid type while assigning to arrayfire.array"</span><span class="p">)</span>
<span class="k">return</span> <span class="n">dims</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">"Invalid type while assigning to arrayfire.array"</span><span class="p">)</span>
<div class="viewcode-block" id="transpose"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.transpose">[docs]</a><span class="k">def</span> <span class="nf">transpose</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">conj</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform the transpose on an input.</span>
<span class="sd"> Parameters</span>
<span class="sd"> -----------</span>
<span class="sd"> a : af.Array</span>
<span class="sd"> Multi dimensional arrayfire array.</span>
<span class="sd"> conj : optional: bool. default: False.</span>
<span class="sd"> Flag to specify if a complex conjugate needs to applied for complex inputs.</span>
<span class="sd"> Returns</span>
<span class="sd"> --------</span>
<span class="sd"> out : af.Array</span>
<span class="sd"> Containing the tranpose of `a` for all batches.</span>
<span class="sd"> """</span>
<span class="n">out</span> <span class="o">=</span> <span class="n">Array</span><span class="p">()</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_transpose</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="o">.</span><span class="n">arr</span><span class="p">),</span> <span class="n">a</span><span class="o">.</span><span class="n">arr</span><span class="p">,</span> <span class="n">conj</span><span class="p">))</span>
<span class="k">return</span> <span class="n">out</span></div>
<div class="viewcode-block" id="transpose_inplace"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.transpose_inplace">[docs]</a><span class="k">def</span> <span class="nf">transpose_inplace</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">conj</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform inplace transpose on an input.</span>
<span class="sd"> Parameters</span>
<span class="sd"> -----------</span>
<span class="sd"> a : af.Array</span>
<span class="sd"> - Multi dimensional arrayfire array.</span>
<span class="sd"> - Contains transposed values on exit.</span>
<span class="sd"> conj : optional: bool. default: False.</span>
<span class="sd"> Flag to specify if a complex conjugate needs to applied for complex inputs.</span>
<span class="sd"> Note</span>
<span class="sd"> -------</span>
<span class="sd"> Input `a` needs to be a square matrix or a batch of square matrices.</span>
<span class="sd"> """</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_transpose_inplace</span><span class="p">(</span><span class="n">a</span><span class="o">.</span><span class="n">arr</span><span class="p">,</span> <span class="n">conj</span><span class="p">))</span></div>
<div class="viewcode-block" id="Array"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array">[docs]</a><span class="k">class</span> <span class="nc">Array</span><span class="p">(</span><span class="n">BaseArray</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> A multi dimensional array container.</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> src : optional: array.array, list or C buffer. default: None.</span>
<span class="sd"> - When `src` is `array.array` or `list`, the data is copied to create the Array()</span>
<span class="sd"> - When `src` is None, an empty buffer is created.</span>
<span class="sd"> dims : optional: tuple of ints. default: (0,)</span>
<span class="sd"> - When using the default values of `dims`, the dims are caclulated as `len(src)`</span>
<span class="sd"> dtype: optional: str or arrayfire.Dtype. default: None.</span>
<span class="sd"> - if str, must be one of the following:</span>
<span class="sd"> - 'f' for float</span>
<span class="sd"> - 'd' for double</span>
<span class="sd"> - 'b' for bool</span>
<span class="sd"> - 'B' for unsigned char</span>
<span class="sd"> - 'h' for signed 16 bit integer</span>
<span class="sd"> - 'H' for unsigned 16 bit integer</span>
<span class="sd"> - 'i' for signed 32 bit integer</span>
<span class="sd"> - 'I' for unsigned 32 bit integer</span>
<span class="sd"> - 'l' for signed 64 bit integer</span>
<span class="sd"> - 'L' for unsigned 64 bit integer</span>
<span class="sd"> - 'F' for 32 bit complex number</span>
<span class="sd"> - 'D' for 64 bit complex number</span>
<span class="sd"> - if arrayfire.Dtype, must be one of the following:</span>
<span class="sd"> - Dtype.f32 for float</span>
<span class="sd"> - Dtype.f64 for double</span>
<span class="sd"> - Dtype.b8 for bool</span>
<span class="sd"> - Dtype.u8 for unsigned char</span>
<span class="sd"> - Dtype.s16 for signed 16 bit integer</span>
<span class="sd"> - Dtype.u16 for unsigned 16 bit integer</span>
<span class="sd"> - Dtype.s32 for signed 32 bit integer</span>
<span class="sd"> - Dtype.u32 for unsigned 32 bit integer</span>
<span class="sd"> - Dtype.s64 for signed 64 bit integer</span>
<span class="sd"> - Dtype.u64 for unsigned 64 bit integer</span>
<span class="sd"> - Dtype.c32 for 32 bit complex number</span>
<span class="sd"> - Dtype.c64 for 64 bit complex number</span>
<span class="sd"> - if None, Dtype.f32 is assumed</span>
<span class="sd"> Attributes</span>
<span class="sd"> -----------</span>
<span class="sd"> arr: ctypes.c_void_p</span>
<span class="sd"> ctypes variable containing af_array from arrayfire library.</span>
<span class="sd"> Examples</span>
<span class="sd"> --------</span>
<span class="sd"> Creating an af.Array() from array.array()</span>
<span class="sd"> >>> import arrayfire as af</span>
<span class="sd"> >>> import array</span>
<span class="sd"> >>> a = array.array('f', (1, 2, 3, 4))</span>
<span class="sd"> >>> b = af.Array(a, (2,2))</span>
<span class="sd"> >>> af.display(b)</span>
<span class="sd"> [2 2 1 1]</span>
<span class="sd"> 1.0000 3.0000</span>
<span class="sd"> 2.0000 4.0000</span>
<span class="sd"> Creating an af.Array() from a list</span>
<span class="sd"> >>> import arrayfire as af</span>
<span class="sd"> >>> import array</span>
<span class="sd"> >>> a = [1, 2, 3, 4]</span>
<span class="sd"> >>> b = af.Array(a)</span>
<span class="sd"> >>> af.display(b)</span>
<span class="sd"> [4 1 1 1]</span>
<span class="sd"> 1.0000</span>
<span class="sd"> 2.0000</span>
<span class="sd"> 3.0000</span>
<span class="sd"> 4.0000</span>
<span class="sd"> Creating an af.Array() from numpy.array()</span>
<span class="sd"> >>> import numpy as np</span>
<span class="sd"> >>> import arrayfire as af</span>
<span class="sd"> >>> a = np.random.random((2,2))</span>
<span class="sd"> >>> a</span>
<span class="sd"> array([[ 0.33042524, 0.36135449],</span>
<span class="sd"> [ 0.86748649, 0.42199135]])</span>
<span class="sd"> >>> b = af.Array(a.ctypes.data, a.shape, a.dtype.char)</span>
<span class="sd"> >>> af.display(b)</span>
<span class="sd"> [2 2 1 1]</span>
<span class="sd"> 0.3304 0.8675</span>
<span class="sd"> 0.3614 0.4220</span>
<span class="sd"> Note</span>
<span class="sd"> -----</span>
<span class="sd"> - The class is currently limited to 4 dimensions.</span>
<span class="sd"> - arrayfire.Array() uses column major format.</span>
<span class="sd"> - numpy uses row major format by default which can cause issues during conversion</span>
<span class="sd"> """</span>
<span class="c1"># Numpy checks this attribute to know which class handles binary builtin operations, such as __add__.</span>
<span class="c1"># Setting to such a high value should make sure that arrayfire has priority over</span>
<span class="c1"># other classes, ensuring that e.g. numpy.float32(1)*arrayfire.randu(3) is handled by</span>
<span class="c1"># arrayfire's __radd__() instead of numpy's __add__()</span>
<span class="n">__array_priority__</span> <span class="o">=</span> <span class="mi">30</span>
<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">src</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">dims</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">is_device</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">offset</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">strides</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="nb">super</span><span class="p">(</span><span class="n">Array</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">()</span>
<span class="n">buf</span><span class="o">=</span><span class="kc">None</span>
<span class="n">buf_len</span><span class="o">=</span><span class="mi">0</span>
<span class="k">if</span> <span class="n">dtype</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">dtype</span><span class="p">,</span> <span class="nb">str</span><span class="p">):</span>
<span class="n">type_char</span> <span class="o">=</span> <span class="n">dtype</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">type_char</span> <span class="o">=</span> <span class="n">to_typecode</span><span class="p">[</span><span class="n">dtype</span><span class="o">.</span><span class="n">value</span><span class="p">]</span>
<span class="k">else</span><span class="p">:</span>
<span class="n">type_char</span> <span class="o">=</span> <span class="kc">None</span>
<span class="n">_type_char</span><span class="o">=</span><span class="s1">'f'</span>
<span class="k">if</span> <span class="n">src</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
<span class="k">if</span> <span class="p">(</span><span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="n">Array</span><span class="p">)):</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_retain_array</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">),</span> <span class="n">src</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span>
<span class="n">host</span> <span class="o">=</span> <span class="nb">__import__</span><span class="p">(</span><span class="s2">"array"</span><span class="p">)</span>
<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="n">host</span><span class="o">.</span><span class="n">array</span><span class="p">):</span>
<span class="n">buf</span><span class="p">,</span><span class="n">buf_len</span> <span class="o">=</span> <span class="n">src</span><span class="o">.</span><span class="n">buffer_info</span><span class="p">()</span>
<span class="n">_type_char</span> <span class="o">=</span> <span class="n">src</span><span class="o">.</span><span class="n">typecode</span>
<span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span> <span class="o">=</span> <span class="n">_get_info</span><span class="p">(</span><span class="n">dims</span><span class="p">,</span> <span class="n">buf_len</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="nb">list</span><span class="p">):</span>
<span class="n">tmp</span> <span class="o">=</span> <span class="n">host</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span class="s1">'f'</span><span class="p">,</span> <span class="n">src</span><span class="p">)</span>
<span class="n">buf</span><span class="p">,</span><span class="n">buf_len</span> <span class="o">=</span> <span class="n">tmp</span><span class="o">.</span><span class="n">buffer_info</span><span class="p">()</span>
<span class="n">_type_char</span> <span class="o">=</span> <span class="n">tmp</span><span class="o">.</span><span class="n">typecode</span>
<span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span> <span class="o">=</span> <span class="n">_get_info</span><span class="p">(</span><span class="n">dims</span><span class="p">,</span> <span class="n">buf_len</span><span class="p">)</span>
<span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="nb">int</span><span class="p">)</span> <span class="ow">or</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="n">c_void_ptr_t</span><span class="p">):</span>
<span class="n">buf</span> <span class="o">=</span> <span class="n">src</span> <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">src</span><span class="p">,</span> <span class="n">c_void_ptr_t</span><span class="p">)</span> <span class="k">else</span> <span class="n">src</span><span class="o">.</span><span class="n">value</span>
<span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span> <span class="o">=</span> <span class="n">_get_info</span><span class="p">(</span><span class="n">dims</span><span class="p">,</span> <span class="n">buf_len</span><span class="p">)</span>
<span class="n">elements</span> <span class="o">=</span> <span class="mi">1</span>
<span class="k">for</span> <span class="n">dim</span> <span class="ow">in</span> <span class="n">idims</span><span class="p">:</span>
<span class="n">elements</span> <span class="o">*=</span> <span class="n">dim</span>
<span class="k">if</span> <span class="p">(</span><span class="n">elements</span> <span class="o">==</span> <span class="mi">0</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">RuntimeError</span><span class="p">(</span><span class="s2">"Expected dims when src is data pointer"</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">type_char</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"Expected type_char when src is data pointer"</span><span class="p">)</span>
<span class="n">_type_char</span> <span class="o">=</span> <span class="n">type_char</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"src is an object of unsupported class"</span><span class="p">)</span>
<span class="k">if</span> <span class="p">(</span><span class="n">type_char</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span>
<span class="n">type_char</span> <span class="o">!=</span> <span class="n">_type_char</span><span class="p">):</span>
<span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">"Can not create array of requested type from input data type"</span><span class="p">)</span>
<span class="k">if</span><span class="p">(</span><span class="n">offset</span> <span class="ow">is</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">strides</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">):</span>
<span class="bp">self</span><span class="o">.</span><span class="n">arr</span> <span class="o">=</span> <span class="n">_create_array</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span><span class="p">,</span> <span class="n">to_dtype</span><span class="p">[</span><span class="n">_type_char</span><span class="p">],</span> <span class="n">is_device</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="bp">self</span><span class="o">.</span><span class="n">arr</span> <span class="o">=</span> <span class="n">_create_strided_array</span><span class="p">(</span><span class="n">buf</span><span class="p">,</span> <span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span><span class="p">,</span>
<span class="n">to_dtype</span><span class="p">[</span><span class="n">_type_char</span><span class="p">],</span>
<span class="n">is_device</span><span class="p">,</span> <span class="n">offset</span><span class="p">,</span> <span class="n">strides</span><span class="p">)</span>
<span class="k">else</span><span class="p">:</span>
<span class="k">if</span> <span class="n">type_char</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
<span class="n">type_char</span> <span class="o">=</span> <span class="s1">'f'</span>
<span class="n">numdims</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">dims</span><span class="p">)</span> <span class="k">if</span> <span class="n">dims</span> <span class="k">else</span> <span class="mi">0</span>
<span class="n">idims</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">*</span> <span class="mi">4</span>
<span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">numdims</span><span class="p">):</span>
<span class="n">idims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span> <span class="o">=</span> <span class="n">dims</span><span class="p">[</span><span class="n">n</span><span class="p">]</span>
<span class="bp">self</span><span class="o">.</span><span class="n">arr</span> <span class="o">=</span> <span class="n">_create_empty_array</span><span class="p">(</span><span class="n">numdims</span><span class="p">,</span> <span class="n">idims</span><span class="p">,</span> <span class="n">to_dtype</span><span class="p">[</span><span class="n">type_char</span><span class="p">])</span>
<div class="viewcode-block" id="Array.as_type"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.as_type">[docs]</a> <span class="k">def</span> <span class="nf">as_type</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ty</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Cast current array to a specified data type</span>
<span class="sd"> Parameters</span>
<span class="sd"> ----------</span>
<span class="sd"> ty : Return data type</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">cast</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">ty</span><span class="p">)</span></div>
<div class="viewcode-block" id="Array.copy"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.copy">[docs]</a> <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Performs a deep copy of the array.</span>
<span class="sd"> Returns</span>
<span class="sd"> -------</span>
<span class="sd"> out: af.Array()</span>
<span class="sd"> An identical copy of self.</span>
<span class="sd"> """</span>
<span class="n">out</span> <span class="o">=</span> <span class="n">Array</span><span class="p">()</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_copy_array</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">out</span><span class="o">.</span><span class="n">arr</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">out</span></div>
<span class="k">def</span> <span class="fm">__del__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Release the C array when going out of scope</span>
<span class="sd"> """</span>
<span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="o">.</span><span class="n">value</span><span class="p">:</span>
<span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_release_array</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">)</span>
<span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="o">.</span><span class="n">value</span> <span class="o">=</span> <span class="mi">0</span>
<div class="viewcode-block" id="Array.device_ptr"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.device_ptr">[docs]</a> <span class="k">def</span> <span class="nf">device_ptr</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the device pointer exclusively held by the array.</span>
<span class="sd"> Returns</span>
<span class="sd"> --------</span>
<span class="sd"> ptr : int</span>
<span class="sd"> Contains location of the device pointer</span>
<span class="sd"> Note</span>
<span class="sd"> ----</span>
<span class="sd"> - This can be used to integrate with custom C code and / or PyCUDA or PyOpenCL.</span>
<span class="sd"> - Implies `af.device.lock_array()`. The device pointer of `a` is not freed by memory manager until `unlock_device_ptr()` is called.</span>
<span class="sd"> - No other arrays will share the same device pointer.</span>
<span class="sd"> - A copy of the memory is done if multiple arrays share the same memory or the array is not the owner of the memory.</span>
<span class="sd"> - In case of a copy the return value points to the newly allocated memory which is now exclusively owned by the array.</span>
<span class="sd"> """</span>
<span class="n">ptr</span> <span class="o">=</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_device_ptr</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">ptr</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">)</span>
<span class="k">return</span> <span class="n">ptr</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.raw_ptr"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.raw_ptr">[docs]</a> <span class="k">def</span> <span class="nf">raw_ptr</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the device pointer held by the array.</span>
<span class="sd"> Returns</span>
<span class="sd"> --------</span>
<span class="sd"> ptr : int</span>
<span class="sd"> Contains location of the device pointer</span>
<span class="sd"> Note</span>
<span class="sd"> ----</span>
<span class="sd"> - This can be used to integrate with custom C code and / or PyCUDA or PyOpenCL.</span>
<span class="sd"> - No mem copy is peformed, this function returns the raw device pointer.</span>
<span class="sd"> - This pointer may be shared with other arrays. Use this function with caution.</span>
<span class="sd"> - In particular the JIT compiler will not be aware of the shared arrays.</span>
<span class="sd"> - This results in JITed operations not being immediately visible through the other array.</span>
<span class="sd"> """</span>
<span class="n">ptr</span> <span class="o">=</span> <span class="n">c_void_ptr_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_raw_ptr</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">ptr</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">)</span>
<span class="k">return</span> <span class="n">ptr</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.offset"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.offset">[docs]</a> <span class="k">def</span> <span class="nf">offset</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the offset, of the first element relative to the raw pointer.</span>
<span class="sd"> Returns</span>
<span class="sd"> --------</span>
<span class="sd"> offset : int</span>
<span class="sd"> The offset in number of elements</span>
<span class="sd"> """</span>
<span class="n">offset</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_offset</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">offset</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">offset</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.strides"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.strides">[docs]</a> <span class="k">def</span> <span class="nf">strides</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the distance in bytes between consecutive elements for each dimension.</span>
<span class="sd"> Returns</span>
<span class="sd"> --------</span>
<span class="sd"> strides : tuple</span>
<span class="sd"> The strides for each dimension</span>
<span class="sd"> """</span>
<span class="n">s0</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">s1</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">s2</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">s3</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_strides</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">s0</span><span class="p">),</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">s1</span><span class="p">),</span>
<span class="n">c_pointer</span><span class="p">(</span><span class="n">s2</span><span class="p">),</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">s3</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="n">strides</span> <span class="o">=</span> <span class="p">(</span><span class="n">s0</span><span class="o">.</span><span class="n">value</span><span class="p">,</span><span class="n">s1</span><span class="o">.</span><span class="n">value</span><span class="p">,</span><span class="n">s2</span><span class="o">.</span><span class="n">value</span><span class="p">,</span><span class="n">s3</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="n">strides</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">numdims</span><span class="p">()]</span></div>
<div class="viewcode-block" id="Array.elements"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.elements">[docs]</a> <span class="k">def</span> <span class="nf">elements</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the number of elements in the array.</span>
<span class="sd"> """</span>
<span class="n">num</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_elements</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">num</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">num</span><span class="o">.</span><span class="n">value</span></div>
<span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="k">return</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">elements</span><span class="p">())</span>
<div class="viewcode-block" id="Array.allocated"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.allocated">[docs]</a> <span class="k">def</span> <span class="nf">allocated</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Returns the number of bytes allocated by the memory manager for the array.</span>
<span class="sd"> """</span>
<span class="n">num</span> <span class="o">=</span> <span class="n">c_size_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_allocated_bytes</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">num</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">num</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.dtype"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.dtype">[docs]</a> <span class="k">def</span> <span class="nf">dtype</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the data type as a arrayfire.Dtype enum value.</span>
<span class="sd"> """</span>
<span class="n">dty</span> <span class="o">=</span> <span class="n">c_int_t</span><span class="p">(</span><span class="n">Dtype</span><span class="o">.</span><span class="n">f32</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_type</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">dty</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">to_dtype</span><span class="p">[</span><span class="n">to_typecode</span><span class="p">[</span><span class="n">dty</span><span class="o">.</span><span class="n">value</span><span class="p">]]</span></div>
<div class="viewcode-block" id="Array.type"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.type">[docs]</a> <span class="k">def</span> <span class="nf">type</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the data type as an int.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="p">()</span><span class="o">.</span><span class="n">value</span></div>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">T</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the transpose of the array</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">transpose</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">H</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the hermitian transpose of the array</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">transpose</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="kc">True</span><span class="p">)</span>
<div class="viewcode-block" id="Array.dims"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.dims">[docs]</a> <span class="k">def</span> <span class="nf">dims</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the shape of the array as a tuple.</span>
<span class="sd"> """</span>
<span class="n">d0</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">d1</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">d2</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">d3</span> <span class="o">=</span> <span class="n">c_dim_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_dims</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">d0</span><span class="p">),</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">d1</span><span class="p">),</span>
<span class="n">c_pointer</span><span class="p">(</span><span class="n">d2</span><span class="p">),</span> <span class="n">c_pointer</span><span class="p">(</span><span class="n">d3</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="n">dims</span> <span class="o">=</span> <span class="p">(</span><span class="n">d0</span><span class="o">.</span><span class="n">value</span><span class="p">,</span><span class="n">d1</span><span class="o">.</span><span class="n">value</span><span class="p">,</span><span class="n">d2</span><span class="o">.</span><span class="n">value</span><span class="p">,</span><span class="n">d3</span><span class="o">.</span><span class="n">value</span><span class="p">)</span>
<span class="k">return</span> <span class="n">dims</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">numdims</span><span class="p">()]</span></div>
<span class="nd">@property</span>
<span class="k">def</span> <span class="nf">shape</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> The shape of the array</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dims</span><span class="p">()</span>
<div class="viewcode-block" id="Array.numdims"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.numdims">[docs]</a> <span class="k">def</span> <span class="nf">numdims</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return the number of dimensions of the array.</span>
<span class="sd"> """</span>
<span class="n">nd</span> <span class="o">=</span> <span class="n">c_uint_t</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_get_numdims</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">nd</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">nd</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_empty"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_empty">[docs]</a> <span class="k">def</span> <span class="nf">is_empty</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is empty i.e. it has no elements.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_empty</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_scalar"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_scalar">[docs]</a> <span class="k">def</span> <span class="nf">is_scalar</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is scalar i.e. it has only one element.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_scalar</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_row"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_row">[docs]</a> <span class="k">def</span> <span class="nf">is_row</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is a row i.e. it has a shape of (1, cols).</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_row</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_column"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_column">[docs]</a> <span class="k">def</span> <span class="nf">is_column</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is a column i.e. it has a shape of (rows, 1).</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_column</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_vector"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_vector">[docs]</a> <span class="k">def</span> <span class="nf">is_vector</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is a vector i.e. it has a shape of one of the following:</span>
<span class="sd"> - (rows, 1)</span>
<span class="sd"> - (1, cols)</span>
<span class="sd"> - (1, 1, vols)</span>
<span class="sd"> - (1, 1, 1, batch)</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_vector</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_sparse"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_sparse">[docs]</a> <span class="k">def</span> <span class="nf">is_sparse</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is a sparse matrix.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_sparse</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_complex"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_complex">[docs]</a> <span class="k">def</span> <span class="nf">is_complex</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is of complex type.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_complex</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_real"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_real">[docs]</a> <span class="k">def</span> <span class="nf">is_real</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is not of complex type.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_real</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_double"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_double">[docs]</a> <span class="k">def</span> <span class="nf">is_double</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is of double precision floating point type.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_double</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_single"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_single">[docs]</a> <span class="k">def</span> <span class="nf">is_single</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is of single precision floating point type.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_single</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_half"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_half">[docs]</a> <span class="k">def</span> <span class="nf">is_half</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is of half floating point type (fp16).</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_half</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_real_floating"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_real_floating">[docs]</a> <span class="k">def</span> <span class="nf">is_real_floating</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is real and of floating point type.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_realfloating</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_floating"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_floating">[docs]</a> <span class="k">def</span> <span class="nf">is_floating</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is of floating point type.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_floating</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_integer"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_integer">[docs]</a> <span class="k">def</span> <span class="nf">is_integer</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is of integer type.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_integer</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_bool"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_bool">[docs]</a> <span class="k">def</span> <span class="nf">is_bool</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array is of type b8.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_bool</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_linear"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_linear">[docs]</a> <span class="k">def</span> <span class="nf">is_linear</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if all elements of the array are contiguous.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_linear</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<div class="viewcode-block" id="Array.is_owner"><a class="viewcode-back" href="../../arrayfire.array.html#arrayfire.array.Array.is_owner">[docs]</a> <span class="k">def</span> <span class="nf">is_owner</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Check if the array owns the raw pointer or is a derived array.</span>
<span class="sd"> """</span>
<span class="n">res</span> <span class="o">=</span> <span class="n">c_bool_t</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
<span class="n">safe_call</span><span class="p">(</span><span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_is_owner</span><span class="p">(</span><span class="n">c_pointer</span><span class="p">(</span><span class="n">res</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">arr</span><span class="p">))</span>
<span class="k">return</span> <span class="n">res</span><span class="o">.</span><span class="n">value</span></div>
<span class="k">def</span> <span class="fm">__add__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return self + other.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_add</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__iadd__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform self += other.</span>
<span class="sd"> """</span>
<span class="bp">self</span> <span class="o">=</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_add</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="k">def</span> <span class="fm">__radd__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return other + self.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_funcr</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_add</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__sub__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return self - other.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_sub</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__isub__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform self -= other.</span>
<span class="sd"> """</span>
<span class="bp">self</span> <span class="o">=</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_sub</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="k">def</span> <span class="fm">__rsub__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return other - self.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_funcr</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_sub</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__mul__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return self * other.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_mul</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__imul__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform self *= other.</span>
<span class="sd"> """</span>
<span class="bp">self</span> <span class="o">=</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_mul</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="k">def</span> <span class="fm">__rmul__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return other * self.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_funcr</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_mul</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__truediv__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return self / other.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_div</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__itruediv__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform self /= other.</span>
<span class="sd"> """</span>
<span class="bp">self</span> <span class="o">=</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_div</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="k">def</span> <span class="fm">__rtruediv__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return other / self.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_funcr</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_div</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__div__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return self / other.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_div</span><span class="p">)</span>
<span class="k">def</span> <span class="nf">__idiv__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform other / self.</span>
<span class="sd"> """</span>
<span class="bp">self</span> <span class="o">=</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_div</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="k">def</span> <span class="nf">__rdiv__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return other / self.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_funcr</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_div</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__mod__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return self % other.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_mod</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__imod__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform self %= other.</span>
<span class="sd"> """</span>
<span class="bp">self</span> <span class="o">=</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_mod</span><span class="p">)</span>
<span class="k">return</span> <span class="bp">self</span>
<span class="k">def</span> <span class="fm">__rmod__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return other % self.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_funcr</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="bp">self</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_mod</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__pow__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Return self ** other.</span>
<span class="sd"> """</span>
<span class="k">return</span> <span class="n">_binary_func</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">,</span> <span class="n">backend</span><span class="o">.</span><span class="n">get</span><span class="p">()</span><span class="o">.</span><span class="n">af_pow</span><span class="p">)</span>
<span class="k">def</span> <span class="fm">__ipow__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
<span class="sd">"""</span>
<span class="sd"> Perform self **= other.</span>
<span class="sd"> """</span>