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<div class="section" id="retrieving-data-from-the-server">
<h1>Retrieving data from the server<a class="headerlink" href="#retrieving-data-from-the-server" title="Permalink to this headline">¶</a></h1>
<div class="section" id="synopsis">
-<span id="index-0"></span><h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
-<p>#include <libmemcached/memcached.h></p>
-<dl class="function">
+<h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
+<dl class="simple">
+<dt>#include <libmemcached/memcached.h></dt><dd><p>Compile and link with -lmemcached</p>
+</dd>
+</dl>
+<dl class="cpp function">
<dt id="_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t">
<span id="_CPPv322memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t"></span><span id="_CPPv222memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t"></span><span id="memcached_fetch_result__memcached_stP.memcached_result_stP.memcached_return_tP"></span><a class="reference internal" href="memcached_result_st.html#_CPPv419memcached_result_st" title="memcached_result_st">memcached_result_st</a> *<code class="sig-name descname">memcached_fetch_result</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <a class="reference internal" href="memcached_result_st.html#_CPPv419memcached_result_st" title="memcached_result_st">memcached_result_st</a> *<em>result</em>, <a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> *<em>error</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="function">
+<dl class="cpp function">
<dt id="_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t">
<span id="_CPPv313memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t"></span><span id="_CPPv213memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t"></span><span id="memcached_get__memcached_stP.cCP.s.sP.uint32_tP.memcached_return_tP"></span>char *<code class="sig-name descname">memcached_get</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <em class="property">const</em> char *<em>key</em>, size_t <em>key_length</em>, size_t *<em>value_length</em>, uint32_t *<em>flags</em>, <a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> *<em>error</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="function">
+<dl class="cpp function">
<dt id="_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t">
<span id="_CPPv314memcached_mgetP12memcached_stPPCKcPK6size_t6size_t"></span><span id="_CPPv214memcached_mgetP12memcached_stPPCKcPK6size_t6size_t"></span><span id="memcached_mget__memcached_stP.cCPCP.sCP.s"></span><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> <code class="sig-name descname">memcached_mget</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <em class="property">const</em> char *<em class="property">const</em> *<em>keys</em>, <em class="property">const</em> size_t *<em>key_length</em>, size_t <em>number_of_keys</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="function">
+<dl class="cpp function">
<dt id="_CPPv420memcached_get_by_keyP12memcached_stPKc6size_tPKc6size_tP6size_tP8uint32_tP18memcached_return_t">
<span id="_CPPv320memcached_get_by_keyP12memcached_stPKc6size_tPKc6size_tP6size_tP8uint32_tP18memcached_return_t"></span><span id="_CPPv220memcached_get_by_keyP12memcached_stPKc6size_tPKc6size_tP6size_tP8uint32_tP18memcached_return_t"></span><span id="memcached_get_by_key__memcached_stP.cCP.s.cCP.s.sP.uint32_tP.memcached_return_tP"></span>char *<code class="sig-name descname">memcached_get_by_key</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <em class="property">const</em> char *<em>group_key</em>, size_t <em>group_key_length</em>, <em class="property">const</em> char *<em>key</em>, size_t <em>key_length</em>, size_t *<em>value_length</em>, uint32_t *<em>flags</em>, <a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> *<em>error</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv420memcached_get_by_keyP12memcached_stPKc6size_tPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="function">
+<dl class="cpp function">
<dt id="_CPPv421memcached_mget_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_t">
<span id="_CPPv321memcached_mget_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_t"></span><span id="_CPPv221memcached_mget_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_t"></span><span id="memcached_mget_by_key__memcached_stP.cCP.s.cCPCP.sCP.s"></span><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> <code class="sig-name descname">memcached_mget_by_key</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <em class="property">const</em> char *<em>group_key</em>, size_t <em>group_key_length</em>, <em class="property">const</em> char *<em class="property">const</em> *<em>keys</em>, <em class="property">const</em> size_t *<em>key_length</em>, size_t <em>number_of_keys</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv421memcached_mget_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="function">
+<dl class="cpp function">
<dt id="_CPPv423memcached_fetch_executeP12memcached_stP20memcached_execute_fnPv8uint32_t">
<span id="_CPPv323memcached_fetch_executeP12memcached_stP20memcached_execute_fnPv8uint32_t"></span><span id="_CPPv223memcached_fetch_executeP12memcached_stP20memcached_execute_fnPv8uint32_t"></span><span id="memcached_fetch_execute__memcached_stP.memcached_execute_fnP.voidP.uint32_t"></span><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> <code class="sig-name descname">memcached_fetch_execute</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <a class="reference internal" href="#_CPPv420memcached_execute_fn" title="memcached_execute_fn">memcached_execute_fn</a> *<em>callback</em>, void *<em>context</em>, uint32_t <em>number_of_callbacks</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv423memcached_fetch_executeP12memcached_stP20memcached_execute_fnPv8uint32_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="function">
+<dl class="cpp function">
<dt id="_CPPv422memcached_mget_executeP12memcached_stPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t">
<span id="_CPPv322memcached_mget_executeP12memcached_stPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t"></span><span id="_CPPv222memcached_mget_executeP12memcached_stPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t"></span><span id="memcached_mget_execute__memcached_stP.cCPCP.sCP.s.memcached_execute_fnP.voidP.uint32_t"></span><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> <code class="sig-name descname">memcached_mget_execute</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <em class="property">const</em> char *<em class="property">const</em> *<em>keys</em>, <em class="property">const</em> size_t *<em>key_length</em>, size_t <em>number_of_keys</em>, <a class="reference internal" href="#_CPPv420memcached_execute_fn" title="memcached_execute_fn">memcached_execute_fn</a> *<em>callback</em>, void *<em>context</em>, uint32_t <em>number_of_callbacks</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv422memcached_mget_executeP12memcached_stPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="function">
+<dl class="cpp function">
<dt id="_CPPv429memcached_mget_execute_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t">
<span id="_CPPv329memcached_mget_execute_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t"></span><span id="_CPPv229memcached_mget_execute_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t"></span><span id="memcached_mget_execute_by_key__memcached_stP.cCP.s.cCPCP.sCP.s.memcached_execute_fnP.voidP.uint32_t"></span><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> <code class="sig-name descname">memcached_mget_execute_by_key</code><span class="sig-paren">(</span><a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<em>ptr</em>, <em class="property">const</em> char *<em>group_key</em>, size_t <em>group_key_length</em>, <em class="property">const</em> char *<em class="property">const</em> *<em>keys</em>, <em class="property">const</em> size_t *<em>key_length</em>, size_t <em>number_of_keys</em>, <a class="reference internal" href="#_CPPv420memcached_execute_fn" title="memcached_execute_fn">memcached_execute_fn</a> *<em>callback</em>, void *<em>context</em>, uint32_t <em>number_of_callbacks</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv429memcached_mget_execute_by_keyP12memcached_stPKc6size_tPPCKcPK6size_t6size_tP20memcached_execute_fnPv8uint32_t" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<dl class="type">
+<dl class="cpp type">
<dt id="_CPPv420memcached_execute_fn">
<span id="_CPPv320memcached_execute_fn"></span><span id="_CPPv220memcached_execute_fn"></span><span id="memcached_execute_fn"></span><em class="property">typedef </em><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> (*<code class="sig-name descname">memcached_execute_fn</code>)<span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *ptr, <a class="reference internal" href="memcached_result_st.html#_CPPv419memcached_result_st" title="memcached_result_st">memcached_result_st</a> *result, void *context<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv420memcached_execute_fn" title="Permalink to this definition">¶</a><br /></dt>
<dd></dd></dl>
-<p>Compile and link with -lmemcached</p>
</div>
<div class="section" id="description">
<h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
<p><a class="reference internal" href="#_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get()</span></code></a> is used to fetch an individual value from the server.
You must pass in a key and its length to fetch the object. You must supply
three pointer variables which will give you the state of the returned
-object. A <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">uint32_t</span></code> pointer to contain whatever flags you stored with the value, a <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">size_t</span></code> pointer which will be filled with size of of
+object. A <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">uint32_t</span></code> pointer to contain whatever flags you stored
+with the value, a <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">size_t</span></code> pointer which will be filled with size of of
the object, and a <a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_return_t</span></code></a> pointer to hold any error. The
object will be returned upon success and NULL will be returned on failure. Any
object returned by <a class="reference internal" href="#_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get()</span></code></a> must be released by the caller
application.</p>
<p><a class="reference internal" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="memcached_mget"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_mget()</span></code></a> is used to select multiple keys at once. For
-multiple key operations it is always faster to use this function. This function always works asynchronously.</p>
-<p>To retrieve data after a successful execution of <a class="reference internal" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="memcached_mget"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_mget()</span></code></a>, you will need to
-call <a class="reference internal" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="memcached_fetch_result"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_result()</span></code></a>. You should continue to call this function until
-it returns a NULL (i.e. no more values). If you need to quit in the middle of a
-<a class="reference internal" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="memcached_mget"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_mget()</span></code></a> call, you can execute a <a class="reference internal" href="memcached_quit.html#_CPPv414memcached_quitP12memcached_st" title="memcached_quit"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_quit()</span></code></a>, those this is not required.</p>
-<p><a class="reference internal" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="memcached_fetch_result"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_result()</span></code></a> is used to fetch an individual value from the server. <a class="reference internal" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="memcached_mget"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_mget()</span></code></a> must always be called before using this method.
+multiple key operations it is always faster to use this function.
+This function always works asynchronously.</p>
+<p>To retrieve data after a successful execution of <a class="reference internal" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="memcached_mget"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_mget()</span></code></a>, you
+will need to call <a class="reference internal" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="memcached_fetch_result"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_result()</span></code></a>. You should continue to call
+this function until it returns a NULL (i.e. no more values). If you need to quit
+in the middle of a <a class="reference internal" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="memcached_mget"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_mget()</span></code></a> call, you can execute a
+<a class="reference internal" href="memcached_quit.html#_CPPv414memcached_quitP12memcached_st" title="memcached_quit"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_quit()</span></code></a>, those this is not required.</p>
+<p><a class="reference internal" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="memcached_fetch_result"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_result()</span></code></a> is used to fetch an individual value from the
+server. <a class="reference internal" href="#_CPPv414memcached_mgetP12memcached_stPPCKcPK6size_t6size_t" title="memcached_mget"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_mget()</span></code></a> must always be called before using this method.
You must pass in a key and its length to fetch the object. You must supply
-three pointer variables which will give you the state of the returned
-object. A <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">uint32_t</span></code> pointer to contain whatever flags you stored with the value, a <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">size_t</span></code> pointer which will be filled with size of of the
-object, and a <a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_return_t</span></code></a> pointer to hold any error. The
-object will be returned upon success and NULL will be returned on failure. <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t13MEMCACHED_ENDE" title="MEMCACHED_END"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_END</span></code></a> is returned by the *error value when all objects that have been found are returned. The final value upon <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t13MEMCACHED_ENDE" title="MEMCACHED_END"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_END</span></code></a> is null.</p>
-<p><a class="reference internal" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="memcached_fetch_result"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_result()</span></code></a> is used to return a <a class="reference internal" href="memcached_result_st.html#_CPPv419memcached_result_st" title="memcached_result_st"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_result_st</span></code></a> structure from a memcached server. The result object is forward compatible
+three pointer variables which will give you the state of the returned object.
+A <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">uint32_t</span></code> pointer to contain whatever flags you stored with the value,
+a <code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">size_t</span></code> pointer which will be filled with size of of the object, and a
+<a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_return_t</span></code></a> pointer to hold any error. The object will be
+returned upon success and NULL will be returned on failure. <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t13MEMCACHED_ENDE" title="MEMCACHED_END"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_END</span></code></a> is
+returned by the *error value when all objects that have been found have been
+returned. The final value upon <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t13MEMCACHED_ENDE" title="MEMCACHED_END"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_END</span></code></a> is null.</p>
+<p><a class="reference internal" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="memcached_fetch_result"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_result()</span></code></a> is used to return a <a class="reference internal" href="memcached_result_st.html#_CPPv419memcached_result_st" title="memcached_result_st"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_result_st</span></code></a>
+structure from a memcached server. The result object is forward compatible
with changes to the server. For more information please refer to the
<a class="reference internal" href="memcached_result_st.html#_CPPv419memcached_result_st" title="memcached_result_st"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_result_st</span></code></a> help. This function will dynamically allocate a
result structure for you if you do not pass one to the function.</p>
result sets to the list of functions you provide. It passes to the function
a <a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_st</span></code></a> that can be cloned for use in the called
function (it can not be used directly). It also passes a result set which does
-not need to be freed. Finally it passes a “context”. This is just a pointer to
+not need to be freed. Finally it passes a "context". This is just a pointer to
a memory reference you supply the calling function. Currently only one value
is being passed to each function call. In the future there will be an option
to allow this to be an array.</p>
The difference is that they take a master key that is used for determining
which server an object was stored if key partitioning was used for storage.</p>
<p>All of the above functions are not tested when the
-<code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_BEHAVIOR_USE_UDP</span></code> has been set. Executing any of these
-functions with this behavior on will result in <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t23MEMCACHED_NOT_SUPPORTEDE" title="MEMCACHED_NOT_SUPPORTED"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOT_SUPPORTED</span></code></a> being returned, or for those functions which do not return a <a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_return_t</span></code></a>, the error function parameter will be set to <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t23MEMCACHED_NOT_SUPPORTEDE" title="MEMCACHED_NOT_SUPPORTED"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOT_SUPPORTED</span></code></a>.</p>
+<a class="reference internal" href="memcached_behavior.html#_CPPv4N20memcached_behavior_t26MEMCACHED_BEHAVIOR_USE_UDPE" title="MEMCACHED_BEHAVIOR_USE_UDP"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_BEHAVIOR_USE_UDP</span></code></a> has been set. Executing any of these
+functions with this behavior on will result in <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t23MEMCACHED_NOT_SUPPORTEDE" title="MEMCACHED_NOT_SUPPORTED"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOT_SUPPORTED</span></code></a> being
+returned, or for those functions which do not return a
+<a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t"><code class="xref cpp cpp-type docutils literal notranslate"><span class="pre">memcached_return_t</span></code></a>, the error function parameter will be set to
+<a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t23MEMCACHED_NOT_SUPPORTEDE" title="MEMCACHED_NOT_SUPPORTED"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOT_SUPPORTED</span></code></a>.</p>
</div>
<div class="section" id="return-value">
<h2>RETURN VALUE<a class="headerlink" href="#return-value" title="Permalink to this headline">¶</a></h2>
-<p>All objects retrieved via <a class="reference internal" href="#_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get()</span></code></a> or <a class="reference internal" href="#_CPPv420memcached_get_by_keyP12memcached_stPKc6size_tPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get_by_key"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get_by_key()</span></code></a> must be freed with <em class="manpage"><a class="manpage reference external" href="http://man7.org/linux/man-pages/man3/free.3.html">free(3)</a></em>.</p>
-<p><a class="reference internal" href="#_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get()</span></code></a> will return NULL on
-error. You must look at the value of error to determine what the actual error
-was.</p>
+<p>All objects retrieved via <a class="reference internal" href="#_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get()</span></code></a> or <a class="reference internal" href="#_CPPv420memcached_get_by_keyP12memcached_stPKc6size_tPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get_by_key"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get_by_key()</span></code></a>
+must be freed with <em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/3/free">free(3)</a></em>.</p>
+<p><a class="reference internal" href="#_CPPv413memcached_getP12memcached_stPKc6size_tP6size_tP8uint32_tP18memcached_return_t" title="memcached_get"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_get()</span></code></a> will return NULL on error.
+You must look at the value of error to determine what the actual error was.</p>
<p><a class="reference internal" href="#_CPPv423memcached_fetch_executeP12memcached_stP20memcached_execute_fnPv8uint32_t" title="memcached_fetch_execute"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_execute()</span></code></a> return <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t17MEMCACHED_SUCCESSE" title="MEMCACHED_SUCCESS"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_SUCCESS</span></code></a> if
-all keys were successful. <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t18MEMCACHED_NOTFOUNDE" title="MEMCACHED_NOTFOUND"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOTFOUND</span></code></a> will be return if no
+all keys were successful. <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t18MEMCACHED_NOTFOUNDE" title="MEMCACHED_NOTFOUND"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOTFOUND</span></code></a> will be returned if no
keys at all were found.</p>
<p><a class="reference internal" href="#_CPPv422memcached_fetch_resultP12memcached_stP19memcached_result_stP18memcached_return_t" title="memcached_fetch_result"><code class="xref cpp cpp-func docutils literal notranslate"><span class="pre">memcached_fetch_result()</span></code></a> sets error
to <a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t13MEMCACHED_ENDE" title="MEMCACHED_END"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_END</span></code></a> upon successful conclusion.
-<a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t18MEMCACHED_NOTFOUNDE" title="MEMCACHED_NOTFOUND"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOTFOUND</span></code></a> will be return if no keys at all were found.</p>
+<a class="reference internal" href="memcached_return_t.html#_CPPv4N18memcached_return_t18MEMCACHED_NOTFOUNDE" title="MEMCACHED_NOTFOUND"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">MEMCACHED_NOTFOUND</span></code></a> will be returned if no keys at all were found.</p>
</div>
<div class="section" id="see-also">
<h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2>
+<ul class="simple">
+<li><p><em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/1/memcached">memcached(1)</a></em></p></li>
+<li><p><a class="reference internal" href="../libmemcached.html"><span class="doc">C/C++ Client Library for memcached</span></a></p></li>
+<li><p><a class="reference internal" href="memcached_strerror.html"><span class="doc">Converting Error Codes to Messages</span></a></p></li>
+</ul>
</div>
</div>
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