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<li><a class="reference internal" href="#direct-api-functions">Direct API functions</a></li>
<li><a class="reference internal" href="#macros">Macros</a></li>
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  <section id="byte-array-objects">
<span id="bytearrayobjects"></span><h1>Byte Array Objects<a class="headerlink" href="#byte-array-objects" title="Permalink to this headline">¶</a></h1>
<span class="target" id="index-0"></span><dl class="c type">
<dt class="sig sig-object c" id="c.PyByteArrayObject">
<span class="k"><span class="pre">type</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArrayObject</span></span></span><a class="headerlink" href="#c.PyByteArrayObject" title="Permalink to this definition">¶</a><br /></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 bytearray object.</p>
</dd></dl>

<dl class="c var">
<dt class="sig sig-object c" id="c.PyByteArray_Type">
<a class="reference internal" href="type.html#c.PyTypeObject" title="PyTypeObject"><span class="n"><span class="pre">PyTypeObject</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_Type</span></span></span><a class="headerlink" href="#c.PyByteArray_Type" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>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 bytearray type;
it is the same object as <a class="reference internal" href="../library/stdtypes.html#bytearray" title="bytearray"><code class="xref py py-class docutils literal notranslate"><span class="pre">bytearray</span></code></a> in the Python layer.</p>
</dd></dl>

<section id="type-check-macros">
<h2>Type check macros<a class="headerlink" href="#type-check-macros" title="Permalink to this headline">¶</a></h2>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_Check">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_Check</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">o</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Check" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>Return true if the object <em>o</em> is a bytearray object or an instance of a
subtype of the bytearray type.  This function always succeeds.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_CheckExact">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_CheckExact</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">o</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_CheckExact" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>Return true if the object <em>o</em> is a bytearray object, but not an instance of a
subtype of the bytearray type.  This function always succeeds.</p>
</dd></dl>

</section>
<section id="direct-api-functions">
<h2>Direct API functions<a class="headerlink" href="#direct-api-functions" title="Permalink to this headline">¶</a></h2>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_FromObject">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_FromObject</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">o</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_FromObject" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: New reference.</em><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Return a new bytearray object from any object, <em>o</em>, that implements the
<a class="reference internal" href="buffer.html#bufferobjects"><span class="std std-ref">buffer protocol</span></a>.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_FromStringAndSize">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_FromStringAndSize</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">char</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">string</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="n"><span class="pre">len</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_FromStringAndSize" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: New reference.</em><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Create a new bytearray object from <em>string</em> and its length, <em>len</em>.  On
failure, <code class="docutils literal notranslate"><span class="pre">NULL</span></code> is returned.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_Concat">
<a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_Concat</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">a</span></span>, <a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">b</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Concat" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="refcount">Return value: New reference.</em><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Concat bytearrays <em>a</em> and <em>b</em> and return a new bytearray with the result.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_Size">
<a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_Size</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">bytearray</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Size" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Return the size of <em>bytearray</em> after checking for a <code class="docutils literal notranslate"><span class="pre">NULL</span></code> pointer.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_AsString">
<span class="kt"><span class="pre">char</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_AsString</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">bytearray</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_AsString" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Return the contents of <em>bytearray</em> as a char array after checking for a
<code class="docutils literal notranslate"><span class="pre">NULL</span></code> pointer.  The returned array always has an extra
null byte appended.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_Resize">
<span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_Resize</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">bytearray</span></span>, <a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="n"><span class="pre">len</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_Resize" title="Permalink to this definition">¶</a><br /></dt>
<dd><em class="stableabi"> Part of the <a class="reference internal" href="stable.html#stable"><span class="std std-ref">Stable ABI</span></a>.</em><p>Resize the internal buffer of <em>bytearray</em> to <em>len</em>.</p>
</dd></dl>

</section>
<section id="macros">
<h2>Macros<a class="headerlink" href="#macros" title="Permalink to this headline">¶</a></h2>
<p>These macros trade safety for speed and they don’t check pointers.</p>
<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_AS_STRING">
<span class="kt"><span class="pre">char</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_AS_STRING</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">bytearray</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_AS_STRING" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>Similar to <a class="reference internal" href="#c.PyByteArray_AsString" title="PyByteArray_AsString"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyByteArray_AsString()</span></code></a>, but without error checking.</p>
</dd></dl>

<dl class="c function">
<dt class="sig sig-object c" id="c.PyByteArray_GET_SIZE">
<a class="reference internal" href="intro.html#c.Py_ssize_t" title="Py_ssize_t"><span class="n"><span class="pre">Py_ssize_t</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">PyByteArray_GET_SIZE</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject"><span class="n"><span class="pre">PyObject</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n"><span class="pre">bytearray</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PyByteArray_GET_SIZE" title="Permalink to this definition">¶</a><br /></dt>
<dd><p>Similar to <a class="reference internal" href="#c.PyByteArray_Size" title="PyByteArray_Size"><code class="xref c c-func docutils literal notranslate"><span class="pre">PyByteArray_Size()</span></code></a>, but without error checking.</p>
</dd></dl>

</section>
</section>


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<li><a class="reference internal" href="#">Byte Array Objects</a><ul>
<li><a class="reference internal" href="#type-check-macros">Type check macros</a></li>
<li><a class="reference internal" href="#direct-api-functions">Direct API functions</a></li>
<li><a class="reference internal" href="#macros">Macros</a></li>
</ul>
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