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<div class="section" id="slice-objects">
<span id="id1"></span><h1>Slice Objects<a class="headerlink" href="#slice-objects" title="Permalink to this headline">¶</a></h1>
<dl class="var">
<dt id="c.PySlice_Type">
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject">PyTypeObject</a> <code class="descname">PySlice_Type</code><a class="headerlink" href="#c.PySlice_Type" title="Permalink to this definition">¶</a></dt>
<dd><p>The type object for slice objects. This is the same as <a class="reference internal" href="../library/functions.html#slice" title="slice"><code class="xref py py-class docutils literal notranslate"><span class="pre">slice</span></code></a> in the
Python layer.</p>
</dd></dl>
<dl class="function">
<dt id="c.PySlice_Check">
int <code class="descname">PySlice_Check</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *ob</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_Check" title="Permalink to this definition">¶</a></dt>
<dd><p>Return true if <em>ob</em> is a slice object; <em>ob</em> must not be <em>NULL</em>.</p>
</dd></dl>
<dl class="function">
<dt id="c.PySlice_New">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PySlice_New</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *start</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *stop</em>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *step</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_New" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new slice object with the given values. The <em>start</em>, <em>stop</em>, and
<em>step</em> parameters are used as the values of the slice object attributes of
the same names. Any of the values may be <em>NULL</em>, in which case the
<code class="docutils literal notranslate"><span class="pre">None</span></code> will be used for the corresponding attribute. Return <em>NULL</em> if
the new object could not be allocated.</p>
</dd></dl>
<dl class="function">
<dt id="c.PySlice_GetIndices">
int <code class="descname">PySlice_GetIndices</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *slice</em>, Py_ssize_t<em> length</em>, Py_ssize_t<em> *start</em>, Py_ssize_t<em> *stop</em>, Py_ssize_t<em> *step</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_GetIndices" title="Permalink to this definition">¶</a></dt>
<dd><p>Retrieve the start, stop and step indices from the slice object <em>slice</em>,
assuming a sequence of length <em>length</em>. Treats indices greater than
<em>length</em> as errors.</p>
<p>Returns <code class="docutils literal notranslate"><span class="pre">0</span></code> on success and <code class="docutils literal notranslate"><span class="pre">-1</span></code> on error with no exception set (unless one of
the indices was not <a class="reference internal" href="../library/constants.html#None" title="None"><code class="xref py py-const docutils literal notranslate"><span class="pre">None</span></code></a> and failed to be converted to an integer,
in which case <code class="docutils literal notranslate"><span class="pre">-1</span></code> is returned with an exception set).</p>
<p>You probably do not want to use this function.</p>
<div class="versionchanged">
<p><span class="versionmodified">Changed in version 3.2: </span>The parameter type for the <em>slice</em> parameter was <code class="docutils literal notranslate"><span class="pre">PySliceObject*</span></code>
before.</p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PySlice_GetIndicesEx">
int <code class="descname">PySlice_GetIndicesEx</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *slice</em>, Py_ssize_t<em> length</em>, Py_ssize_t<em> *start</em>, Py_ssize_t<em> *stop</em>, Py_ssize_t<em> *step</em>, Py_ssize_t<em> *slicelength</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PySlice_GetIndicesEx" title="Permalink to this definition">¶</a></dt>
<dd><p>Usable replacement for <a class="reference internal" href="#c.PySlice_GetIndices" title="PySlice_GetIndices"><code class="xref c c-func docutils literal notranslate"><span class="pre">PySlice_GetIndices()</span></code></a>. Retrieve the start,
stop, and step indices from the slice object <em>slice</em> assuming a sequence of
length <em>length</em>, and store the length of the slice in <em>slicelength</em>. Out
of bounds indices are clipped in a manner consistent with the handling of
normal slices.</p>
<p>Returns <code class="docutils literal notranslate"><span class="pre">0</span></code> on success and <code class="docutils literal notranslate"><span class="pre">-1</span></code> on error with exception set.</p>
<div class="versionchanged">
<p><span class="versionmodified">Changed in version 3.2: </span>The parameter type for the <em>slice</em> parameter was <code class="docutils literal notranslate"><span class="pre">PySliceObject*</span></code>
before.</p>
</div>
</dd></dl>
</div>
<div class="section" id="ellipsis-object">
<h1>Ellipsis Object<a class="headerlink" href="#ellipsis-object" title="Permalink to this headline">¶</a></h1>
<dl class="var">
<dt id="c.Py_Ellipsis">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a> *<code class="descname">Py_Ellipsis</code><a class="headerlink" href="#c.Py_Ellipsis" title="Permalink to this definition">¶</a></dt>
<dd><p>The Python <code class="docutils literal notranslate"><span class="pre">Ellipsis</span></code> object. This object has no methods. It needs to be
treated just like any other object with respect to reference counts. Like
<a class="reference internal" href="none.html#c.Py_None" title="Py_None"><code class="xref c c-data docutils literal notranslate"><span class="pre">Py_None</span></code></a> it is a singleton object.</p>
</dd></dl>
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