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 181   <div class="section" id="retrieving-error-codes-and-messages">
 182 <h1>Retrieving Error Codes and Messages<a class="headerlink" href="#retrieving-error-codes-and-messages" title="Permalink to this headline">¶</a></h1>
 183 <div class="section" id="synopsis">
 184 <h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
 185 <dl class="docutils">
 186 <dt>#include &lt;libmemcached/memcached.h&gt;</dt>
 187 <dd>Compile and link with -lmemcached</dd>
 188 </dl>
 189 <dl class="function">
 190 <dt id="_CPPv420memcached_last_errorPK12memcached_st">
 191 <span id="_CPPv320memcached_last_errorPK12memcached_st"></span><span id="_CPPv220memcached_last_errorPK12memcached_st"></span><span id="memcached_last_error__memcached_stCP"></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_last_error</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> *<em>ptr</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv420memcached_last_errorPK12memcached_st" title="Permalink to this definition">¶</a><br /></dt>
 192 <dd><table class="docutils field-list" frame="void" rules="none">
 193 <col class="field-name" />
 194 <col class="field-body" />
 195 <tbody valign="top">
 196 <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ptr</strong> -- pointer to an 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</td>
 197 </tr>
 198 <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><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 of last operation</td>
 199 </tr>
 200 </tbody>
 201 </table>
 202 </dd></dl>
 203
 204 <dl class="function">
 205 <dt id="_CPPv428memcached_last_error_messagePK12memcached_st">
 206 <span id="_CPPv328memcached_last_error_messagePK12memcached_st"></span><span id="_CPPv228memcached_last_error_messagePK12memcached_st"></span><span id="memcached_last_error_message__memcached_stCP"></span><em class="property">const</em> char *<code class="descname">memcached_last_error_message</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> *<em>ptr</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv428memcached_last_error_messagePK12memcached_st" title="Permalink to this definition">¶</a><br /></dt>
 207 <dd><table class="docutils field-list" frame="void" rules="none">
 208 <col class="field-name" />
 209 <col class="field-body" />
 210 <tbody valign="top">
 211 <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ptr</strong> -- pointer to an 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</td>
 212 </tr>
 213 <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">message describing the status of last operation</td>
 214 </tr>
 215 </tbody>
 216 </table>
 217 </dd></dl>
 218
 219 <dl class="function">
 220 <dt id="_CPPv426memcached_last_error_errnoPK12memcached_st">
 221 <span id="_CPPv326memcached_last_error_errnoPK12memcached_st"></span><span id="_CPPv226memcached_last_error_errnoPK12memcached_st"></span><span id="memcached_last_error_errno__memcached_stCP"></span>int <code class="descname">memcached_last_error_errno</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> *<em>ptr</em><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv426memcached_last_error_errnoPK12memcached_st" title="Permalink to this definition">¶</a><br /></dt>
 222 <dd><table class="docutils field-list" frame="void" rules="none">
 223 <col class="field-name" />
 224 <col class="field-body" />
 225 <tbody valign="top">
 226 <tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>ptr</strong> -- pointer to an 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</td>
 227 </tr>
 228 <tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/3/errno">errno(3)</a></em> (if any) of last operation</td>
 229 </tr>
 230 </tbody>
 231 </table>
 232 </dd></dl>
 233
 234 </div>
 235 <div class="section" id="description">
 236 <h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
 237 <p>Retrieve error codes and messages.</p>
 238 </div>
 239 <div class="section" id="return-value">
 240 <h2>RETURN VALUE<a class="headerlink" href="#return-value" title="Permalink to this headline">¶</a></h2>
 241 <p><a class="reference internal" href="#_CPPv420memcached_last_errorPK12memcached_st" title="memcached_last_error"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_last_error()</span></code></a> returns the last error code.</p>
 242 <p><a class="reference internal" href="#_CPPv428memcached_last_error_messagePK12memcached_st" title="memcached_last_error_message"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_last_error_message()</span></code></a> returns the last error message. If this error
 243 came from a specific server, its hostname and port will be provided in the error
 244 message. Any error message will be returned as 'const char *' which does not
 245 need to be de-allocated. NULL will be returned if no error has occurred.</p>
 246 <p><a class="reference internal" href="#_CPPv426memcached_last_error_errnoPK12memcached_st" title="memcached_last_error_errno"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_last_error_errno()</span></code></a> returns any last local error code obtained from
 247 <em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/3/errno">errno(3)</a></em>.</p>
 248 </div>
 249 <div class="section" id="see-also">
 250 <h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2>
 251 <ul class="simple">
 252 <li><em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/1/memcached">memcached(1)</a></em></li>
 253 <li><em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/3/errno">errno(3)</a></em></li>
 254 <li><a class="reference internal" href="../libmemcached.html"><span class="doc">C/C++ Client Library for memcached</span></a></li>
 255 <li><a class="reference internal" href="memcached_strerror.html"><span class="doc">Converting Error Codes to Messages</span></a></li>
 256 </ul>
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