-<span id="_CPPv322memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t"></span><span id="_CPPv222memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t"></span><span id="memcached_touch_by_key__memcached_stP.cCP.s.cCP.s.time_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_touch_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>, time_t <em>expiration</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv422memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t" title="Permalink to this definition">¶</a><br /></dt>
-<dd></dd></dl>
+<span id="_CPPv322memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t"></span><span id="_CPPv222memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t"></span><span id="memcached_touch_by_key__memcached_stP.cCP.s.cCP.s.time_t"></span><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> <code class="descname">memcached_touch_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>, time_t <em>expiration</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv422memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t" title="Permalink to this definition">¶</a><br /></dt>
+<dd><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">Parameters:</th><td class="field-body"><ul class="first simple">
+<li><strong>ptr</strong> -- pointer to initialized <a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_st</span></code></a> struct</li>
+<li><strong>group_key</strong> -- the <a class="reference internal" href="#_CPPv422memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t" title="memcached_touch_by_key::key"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">key</span></code></a> namespace</li>
+<li><strong>group_key_length</strong> -- the length of <a class="reference internal" href="#_CPPv422memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t" title="memcached_touch_by_key::group_key"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">group_key</span></code></a> without any terminating zero</li>
+<li><strong>key</strong> -- the key to touch</li>
+<li><strong>key_length</strong> -- the length of <a class="reference internal" href="#_CPPv422memcached_touch_by_keyP12memcached_stPKc6size_tPKc6size_t6time_t" title="memcached_touch_by_key::key"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">key</span></code></a> without any terminating zero</li>
+<li><strong>expiration</strong> -- new expiration as a unix timestamp or as relative expiration time in seconds</li>
+</ul>
+</td>
+</tr>
+<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last"><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_return_t</span></code></a> indicating success</p>
+</td>
+</tr>
+</tbody>
+</table>
+</dd></dl>