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Library/boost/libs/python/doc/html/numpy/reference/multi_iter.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>multi_iter - Boost.Python NumPy extension 1.0 documentation</title> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <link rel="stylesheet" href="../_static/style.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../', VERSION: '1.0', COLLAPSE_MODINDEX: false, FILE_SUFFIX: '.html' }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="top" title="Boost.Python NumPy extension 1.0 documentation" href="../index.html" /> <link rel="up" title="Boost.Python NumPy extension Reference" href="index.html" /> <link rel="prev" title="binary_ufunc" href="binary_ufunc.html" /> </head> <body> <div class="header"> <table border="0" cellpadding="7" cellspacing="0" width="100%" summary= "header"> <tr> <td valign="top" width="300"> <h3><a href="../index.html"><img alt="C++ Boost" src="../_static/bpl.png" border="0"></a></h3> </td> <td > <h1 align="center"><a href="../index.html">(NumPy)</a></h1> <!-- <h2 align="center">CallPolicies Concept</h2>--> </td> <td> <div id="searchbox" style="display: none"> <form class="search" action="../search.html" method="get"> <input type="text" name="q" size="18" /> <input type="submit" value="Search" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </td> </tr> </table> </div> <hr/> <div class="content"> <div class="navbar" style="text-align:right;"> <a class="prev" title="binary_ufunc" href="binary_ufunc.html"><img src="../_static/prev.png" alt="prev"/></a> <a class="up" title="Boost.Python NumPy extension Reference" href="index.html"><img src="../_static/up.png" alt="up"/></a> </div> <div class="section" id="multi-iter"> <h1><a class="toc-backref" href="#id1">multi_iter</a></h1> <div class="contents topic" id="table-of-contents"> <p class="topic-title first">Table of Contents</p> <ul class="simple"> <li><a class="reference internal" href="#multi-iter" id="id1">multi_iter</a><ul> <li><a class="reference internal" href="#synopsis" id="id2">synopsis</a></li> <li><a class="reference internal" href="#constructors" id="id3">constructors</a></li> <li><a class="reference internal" href="#accessors" id="id4">accessors</a></li> </ul> </li> </ul> </div> <p>A <code class="docutils literal"><span class="pre">multi_iter</span></code> is a Python object, intended to be used as an iterator It should generally only be used in loops.</p> <blockquote> <div><code class="docutils literal"><span class="pre"><boost/python/numpy/ufunc.hpp></span></code> contains the class definitions for <code class="docutils literal"><span class="pre">multi_iter</span></code></div></blockquote> <div class="section" id="synopsis"> <h2><a class="toc-backref" href="#id2">synopsis</a></h2> <div class="highlight-c++"><div class="highlight"><pre><span class="k">namespace</span> <span class="n">boost</span> <span class="p">{</span> <span class="k">namespace</span> <span class="n">python</span> <span class="p">{</span> <span class="k">namespace</span> <span class="n">numpy</span> <span class="p">{</span> <span class="k">class</span> <span class="nc">multi_iter</span> <span class="o">:</span> <span class="k">public</span> <span class="n">object</span> <span class="p">{</span> <span class="k">public</span><span class="o">:</span> <span class="kt">void</span> <span class="n">next</span><span class="p">();</span> <span class="kt">bool</span> <span class="nf">not_done</span><span class="p">()</span> <span class="k">const</span><span class="p">;</span> <span class="kt">char</span> <span class="o">*</span> <span class="nf">get_data</span><span class="p">(</span><span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="k">const</span><span class="p">;</span> <span class="kt">int</span> <span class="k">const</span> <span class="nf">get_nd</span><span class="p">()</span> <span class="k">const</span><span class="p">;</span> <span class="n">Py_intptr_t</span> <span class="k">const</span> <span class="o">*</span> <span class="nf">get_shape</span><span class="p">()</span> <span class="k">const</span><span class="p">;</span> <span class="n">Py_intptr_t</span> <span class="k">const</span> <span class="nf">shape</span><span class="p">(</span><span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="k">const</span><span class="p">;</span> <span class="p">};</span> <span class="n">multi_iter</span> <span class="nf">make_multi_iter</span><span class="p">(</span><span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a1</span><span class="p">);</span> <span class="n">multi_iter</span> <span class="nf">make_multi_iter</span><span class="p">(</span><span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a1</span><span class="p">,</span> <span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a2</span><span class="p">);</span> <span class="n">multi_iter</span> <span class="nf">make_multi_iter</span><span class="p">(</span><span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a1</span><span class="p">,</span> <span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a2</span><span class="p">,</span> <span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a3</span><span class="p">);</span> <span class="p">}</span> <span class="p">}</span> <span class="p">}</span> </pre></div> </div> </div> <div class="section" id="constructors"> <h2><a class="toc-backref" href="#id3">constructors</a></h2> <div class="highlight-c++"><div class="highlight"><pre><span class="n">multi_iter</span> <span class="nf">make_multi_iter</span><span class="p">(</span><span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a1</span><span class="p">);</span> <span class="n">multi_iter</span> <span class="nf">make_multi_iter</span><span class="p">(</span><span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a1</span><span class="p">,</span> <span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a2</span><span class="p">);</span> <span class="n">multi_iter</span> <span class="nf">make_multi_iter</span><span class="p">(</span><span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a1</span><span class="p">,</span> <span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a2</span><span class="p">,</span> <span class="n">object</span> <span class="k">const</span> <span class="o">&</span> <span class="n">a3</span><span class="p">);</span> </pre></div> </div> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">A Python iterator object broadcasting over one, two or three sequences as supplied</td> </tr> </tbody> </table> </div> <div class="section" id="accessors"> <h2><a class="toc-backref" href="#id4">accessors</a></h2> <div class="highlight-c++"><div class="highlight"><pre><span class="kt">void</span> <span class="nf">next</span><span class="p">();</span> </pre></div> </div> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Effects:</th><td class="field-body">Increments the iterator</td> </tr> </tbody> </table> <div class="highlight-c++"><div class="highlight"><pre><span class="kt">bool</span> <span class="nf">not_done</span><span class="p">()</span> <span class="k">const</span><span class="p">;</span> </pre></div> </div> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">boolean value indicating whether the iterator is at its end</td> </tr> </tbody> </table> <div class="highlight-c++"><div class="highlight"><pre><span class="kt">char</span> <span class="o">*</span> <span class="nf">get_data</span><span class="p">(</span><span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="k">const</span><span class="p">;</span> </pre></div> </div> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">a pointer to the element of the nth broadcasted array.</td> </tr> </tbody> </table> <div class="highlight-c++"><div class="highlight"><pre><span class="kt">int</span> <span class="k">const</span> <span class="nf">get_nd</span><span class="p">()</span> <span class="k">const</span><span class="p">;</span> </pre></div> </div> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">the number of dimensions of the broadcasted array expression</td> </tr> </tbody> </table> <div class="highlight-c++"><div class="highlight"><pre><span class="n">Py_intptr_t</span> <span class="k">const</span> <span class="o">*</span> <span class="nf">get_shape</span><span class="p">()</span> <span class="k">const</span><span class="p">;</span> </pre></div> </div> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">the shape of the broadcasted array expression as an array of integers.</td> </tr> </tbody> </table> <div class="highlight-c++"><div class="highlight"><pre><span class="n">Py_intptr_t</span> <span class="k">const</span> <span class="nf">shape</span><span class="p">(</span><span class="kt">int</span> <span class="n">n</span><span class="p">)</span> <span class="k">const</span><span class="p">;</span> </pre></div> </div> <table class="docutils field-list" frame="void" rules="none"> <col class="field-name" /> <col class="field-body" /> <tbody valign="top"> <tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">the shape of the broadcasted array expression in the nth dimension.</td> </tr> </tbody> </table> </div> </div> <div class="navbar" style="text-align:right;"> <a class="prev" title="binary_ufunc" href="binary_ufunc.html"><img src="../_static/prev.png" alt="prev"/></a> <a class="up" title="Boost.Python NumPy extension Reference" href="index.html"><img src="../_static/up.png" alt="up"/></a> </div> </div> </body> </html>