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<div class="section" id="long-integer-objects">
<span id="longobjects"></span><h1>Long Integer Objects<a class="headerlink" href="#long-integer-objects" title="Permalink to this headline">¶</a></h1>
<span class="target" id="index-0"></span><dl class="type">
<dt id="c.PyLongObject">
<code class="descname">PyLongObject</code><a class="headerlink" href="#c.PyLongObject" title="Permalink to this definition">¶</a></dt>
<dd><p>This subtype of <a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyObject</span></code></a> represents a Python long integer object.</p>
</dd></dl>
<dl class="var">
<dt id="c.PyLong_Type">
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject">PyTypeObject</a> <code class="descname">PyLong_Type</code><a class="headerlink" href="#c.PyLong_Type" title="Permalink to this definition">¶</a></dt>
<dd><p id="index-1">This instance of <a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyTypeObject</span></code></a> represents the Python long integer type.
This is the same object as <code class="docutils literal notranslate"><span class="pre">long</span></code> and <code class="docutils literal notranslate"><span class="pre">types.LongType</span></code>.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_Check">
int <code class="descname">PyLong_Check</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *p</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_Check" title="Permalink to this definition">¶</a></dt>
<dd><p>Return true if its argument is a <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> or a subtype of
<a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a>.</p>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 2.2: </span>Allowed subtypes to be accepted.</p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_CheckExact">
int <code class="descname">PyLong_CheckExact</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *p</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_CheckExact" title="Permalink to this definition">¶</a></dt>
<dd><p>Return true if its argument is a <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a>, but not a subtype of
<a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a>.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.2.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromLong">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromLong</code><span class="sig-paren">(</span>long<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromLong" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> object from <em>v</em>, or <em>NULL</em> on failure.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromUnsignedLong">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromUnsignedLong</code><span class="sig-paren">(</span>unsigned long<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromUnsignedLong" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> object from a C <code class="xref c c-type docutils literal notranslate"><span class="pre">unsigned</span> <span class="pre">long</span></code>, or
<em>NULL</em> on failure.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromSsize_t">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromSsize_t</code><span class="sig-paren">(</span>Py_ssize_t<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromSsize_t" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> object from a C <code class="xref c c-type docutils literal notranslate"><span class="pre">Py_ssize_t</span></code>, or
<em>NULL</em> on failure.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.6.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromSize_t">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromSize_t</code><span class="sig-paren">(</span>size_t<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromSize_t" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> object from a C <code class="xref c c-type docutils literal notranslate"><span class="pre">size_t</span></code>, or
<em>NULL</em> on failure.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.6.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromLongLong">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromLongLong</code><span class="sig-paren">(</span>PY_LONG_LONG<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromLongLong" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> object from a C <code class="xref c c-type docutils literal notranslate"><span class="pre">long</span> <span class="pre">long</span></code>, or <em>NULL</em>
on failure.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromUnsignedLongLong">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromUnsignedLongLong</code><span class="sig-paren">(</span>unsigned PY_LONG_LONG<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromUnsignedLongLong" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> object from a C <code class="xref c c-type docutils literal notranslate"><span class="pre">unsigned</span> <span class="pre">long</span> <span class="pre">long</span></code>,
or <em>NULL</em> on failure.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromDouble">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromDouble</code><span class="sig-paren">(</span>double<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromDouble" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> object from the integer part of <em>v</em>, or
<em>NULL</em> on failure.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromString">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromString</code><span class="sig-paren">(</span>char<em> *str</em>, char<em> **pend</em>, int<em> base</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromString" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Return a new <a class="reference internal" href="#c.PyLongObject" title="PyLongObject"><code class="xref c c-type docutils literal notranslate"><span class="pre">PyLongObject</span></code></a> based on the string value in <em>str</em>, which is
interpreted according to the radix in <em>base</em>. If <em>pend</em> is non-<em>NULL</em>,
<em>*pend</em> will point to the first character in <em>str</em> which follows the
representation of the number. If <em>base</em> is <code class="docutils literal notranslate"><span class="pre">0</span></code>, the radix will be determined
based on the leading characters of <em>str</em>: if <em>str</em> starts with <code class="docutils literal notranslate"><span class="pre">'0x'</span></code> or
<code class="docutils literal notranslate"><span class="pre">'0X'</span></code>, radix 16 will be used; if <em>str</em> starts with <code class="docutils literal notranslate"><span class="pre">'0'</span></code>, radix 8 will be
used; otherwise radix 10 will be used. If <em>base</em> is not <code class="docutils literal notranslate"><span class="pre">0</span></code>, it must be
between <code class="docutils literal notranslate"><span class="pre">2</span></code> and <code class="docutils literal notranslate"><span class="pre">36</span></code>, inclusive. Leading spaces are ignored. If there are
no digits, <a class="reference internal" href="../library/exceptions.html#exceptions.ValueError" title="exceptions.ValueError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">ValueError</span></code></a> will be raised.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromUnicode">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromUnicode</code><span class="sig-paren">(</span><a class="reference internal" href="unicode.html#c.Py_UNICODE" title="Py_UNICODE">Py_UNICODE</a><em> *u</em>, Py_ssize_t<em> length</em>, int<em> base</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromUnicode" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Convert a sequence of Unicode digits to a Python long integer value. The first
parameter, <em>u</em>, points to the first character of the Unicode string, <em>length</em>
gives the number of characters, and <em>base</em> is the radix for the conversion. The
radix must be in the range [2, 36]; if it is out of range, <a class="reference internal" href="../library/exceptions.html#exceptions.ValueError" title="exceptions.ValueError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">ValueError</span></code></a>
will be raised.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 1.6.</span></p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 2.5: </span>This function used an <code class="xref c c-type docutils literal notranslate"><span class="pre">int</span></code> for <em>length</em>. This might require
changes in your code for properly supporting 64-bit systems.</p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_FromVoidPtr">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="descname">PyLong_FromVoidPtr</code><span class="sig-paren">(</span>void<em> *p</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_FromVoidPtr" title="Permalink to this definition">¶</a></dt>
<dd><em class="refcount">Return value: New reference.</em><p>Create a Python integer or long integer from the pointer <em>p</em>. The pointer value
can be retrieved from the resulting value using <a class="reference internal" href="#c.PyLong_AsVoidPtr" title="PyLong_AsVoidPtr"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyLong_AsVoidPtr()</span></code></a>.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 1.5.2.</span></p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 2.5: </span>If the integer is larger than LONG_MAX, a positive long integer is returned.</p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsLong">
long <code class="descname">PyLong_AsLong</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsLong" title="Permalink to this definition">¶</a></dt>
<dd><p id="index-2">Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">long</span></code> representation of the contents of <em>pylong</em>. If
<em>pylong</em> is greater than <code class="xref py py-const docutils literal notranslate"><span class="pre">LONG_MAX</span></code>, an <a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a> is raised
and <code class="docutils literal notranslate"><span class="pre">-1</span></code> will be returned.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsLongAndOverflow">
long <code class="descname">PyLong_AsLongAndOverflow</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em>, int<em> *overflow</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsLongAndOverflow" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">long</span></code> representation of the contents of
<em>pylong</em>. If <em>pylong</em> is greater than <code class="xref py py-const docutils literal notranslate"><span class="pre">LONG_MAX</span></code> or less
than <code class="xref py py-const docutils literal notranslate"><span class="pre">LONG_MIN</span></code>, set <em>*overflow</em> to <code class="docutils literal notranslate"><span class="pre">1</span></code> or <code class="docutils literal notranslate"><span class="pre">-1</span></code>,
respectively, and return <code class="docutils literal notranslate"><span class="pre">-1</span></code>; otherwise, set <em>*overflow</em> to
<code class="docutils literal notranslate"><span class="pre">0</span></code>. If any other exception occurs (for example a TypeError or
MemoryError), then <code class="docutils literal notranslate"><span class="pre">-1</span></code> will be returned and <em>*overflow</em> will
be <code class="docutils literal notranslate"><span class="pre">0</span></code>.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.7.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsLongLongAndOverflow">
PY_LONG_LONG <code class="descname">PyLong_AsLongLongAndOverflow</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em>, int<em> *overflow</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsLongLongAndOverflow" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">long</span> <span class="pre">long</span></code> representation of the contents of
<em>pylong</em>. If <em>pylong</em> is greater than <code class="xref py py-const docutils literal notranslate"><span class="pre">PY_LLONG_MAX</span></code> or less
than <code class="xref py py-const docutils literal notranslate"><span class="pre">PY_LLONG_MIN</span></code>, set <em>*overflow</em> to <code class="docutils literal notranslate"><span class="pre">1</span></code> or <code class="docutils literal notranslate"><span class="pre">-1</span></code>,
respectively, and return <code class="docutils literal notranslate"><span class="pre">-1</span></code>; otherwise, set <em>*overflow</em> to
<code class="docutils literal notranslate"><span class="pre">0</span></code>. If any other exception occurs (for example a TypeError or
MemoryError), then <code class="docutils literal notranslate"><span class="pre">-1</span></code> will be returned and <em>*overflow</em> will
be <code class="docutils literal notranslate"><span class="pre">0</span></code>.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.7.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsSsize_t">
Py_ssize_t <code class="descname">PyLong_AsSsize_t</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsSsize_t" title="Permalink to this definition">¶</a></dt>
<dd><p id="index-3">Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">Py_ssize_t</span></code> representation of the contents of <em>pylong</em>. If
<em>pylong</em> is greater than <code class="xref py py-const docutils literal notranslate"><span class="pre">PY_SSIZE_T_MAX</span></code>, an <a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a> is raised
and <code class="docutils literal notranslate"><span class="pre">-1</span></code> will be returned.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.6.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsUnsignedLong">
unsigned long <code class="descname">PyLong_AsUnsignedLong</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsUnsignedLong" title="Permalink to this definition">¶</a></dt>
<dd><p id="index-4">Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">unsigned</span> <span class="pre">long</span></code> representation of the contents of <em>pylong</em>.
If <em>pylong</em> is greater than <code class="xref py py-const docutils literal notranslate"><span class="pre">ULONG_MAX</span></code>, an <a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a> is
raised.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsLongLong">
PY_LONG_LONG <code class="descname">PyLong_AsLongLong</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsLongLong" title="Permalink to this definition">¶</a></dt>
<dd><p id="index-5">Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">long</span> <span class="pre">long</span></code> from a Python long integer. If
<em>pylong</em> cannot be represented as a <code class="xref c c-type docutils literal notranslate"><span class="pre">long</span> <span class="pre">long</span></code>, an
<a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a> is raised and <code class="docutils literal notranslate"><span class="pre">-1</span></code> is returned.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.2.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsUnsignedLongLong">
unsigned PY_LONG_LONG <code class="descname">PyLong_AsUnsignedLongLong</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsUnsignedLongLong" title="Permalink to this definition">¶</a></dt>
<dd><p id="index-6">Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">unsigned</span> <span class="pre">long</span> <span class="pre">long</span></code> from a Python long integer. If
<em>pylong</em> cannot be represented as an <code class="xref c c-type docutils literal notranslate"><span class="pre">unsigned</span> <span class="pre">long</span> <span class="pre">long</span></code>, an
<a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a> is raised and <code class="docutils literal notranslate"><span class="pre">(unsigned</span> <span class="pre">long</span> <span class="pre">long)-1</span></code> is
returned.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.2.</span></p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 2.7: </span>A negative <em>pylong</em> now raises <a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a>, not
<a class="reference internal" href="../library/exceptions.html#exceptions.TypeError" title="exceptions.TypeError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">TypeError</span></code></a>.</p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsUnsignedLongMask">
unsigned long <code class="descname">PyLong_AsUnsignedLongMask</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *io</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsUnsignedLongMask" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">unsigned</span> <span class="pre">long</span></code> from a Python long integer, without checking
for overflow.</p>
<p>Returns <code class="docutils literal notranslate"><span class="pre">(unsigned</span> <span class="pre">long)-1</span></code> on error. Use <a class="reference internal" href="exceptions.html#c.PyErr_Occurred" title="PyErr_Occurred"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyErr_Occurred()</span></code></a> to
disambiguate.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.3.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsUnsignedLongLongMask">
unsigned PY_LONG_LONG <code class="descname">PyLong_AsUnsignedLongLongMask</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *io</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsUnsignedLongLongMask" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">unsigned</span> <span class="pre">long</span> <span class="pre">long</span></code> from a Python long integer, without
checking for overflow.</p>
<p>Returns <code class="docutils literal notranslate"><span class="pre">(unsigned</span> <span class="pre">PY_LONG_LONG)-1</span></code> on error. Use
<a class="reference internal" href="exceptions.html#c.PyErr_Occurred" title="PyErr_Occurred"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyErr_Occurred()</span></code></a> to disambiguate.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 2.3.</span></p>
</div>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsDouble">
double <code class="descname">PyLong_AsDouble</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsDouble" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a C <code class="xref c c-type docutils literal notranslate"><span class="pre">double</span></code> representation of the contents of <em>pylong</em>. If
<em>pylong</em> cannot be approximately represented as a <code class="xref c c-type docutils literal notranslate"><span class="pre">double</span></code>, an
<a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a> exception is raised and <code class="docutils literal notranslate"><span class="pre">-1.0</span></code> will be returned.</p>
</dd></dl>
<dl class="function">
<dt id="c.PyLong_AsVoidPtr">
void* <code class="descname">PyLong_AsVoidPtr</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *pylong</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyLong_AsVoidPtr" title="Permalink to this definition">¶</a></dt>
<dd><p>Convert a Python integer or long integer <em>pylong</em> to a C <code class="xref c c-type docutils literal notranslate"><span class="pre">void</span></code> pointer.
If <em>pylong</em> cannot be converted, an <a class="reference internal" href="../library/exceptions.html#exceptions.OverflowError" title="exceptions.OverflowError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OverflowError</span></code></a> will be raised. This
is only assured to produce a usable <code class="xref c c-type docutils literal notranslate"><span class="pre">void</span></code> pointer for values created
with <a class="reference internal" href="#c.PyLong_FromVoidPtr" title="PyLong_FromVoidPtr"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyLong_FromVoidPtr()</span></code></a>.</p>
<div class="versionadded">
<p><span class="versionmodified added">New in version 1.5.2.</span></p>
</div>
<div class="versionchanged">
<p><span class="versionmodified changed">Changed in version 2.5: </span>For values outside 0..LONG_MAX, both signed and unsigned integers are accepted.</p>
</div>
</dd></dl>
</div>
</div>
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