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 192   <div class="section" id="retrieving-error-codes-and-messages">
 193 <h1>Retrieving Error Codes and Messages<a class="headerlink" href="#retrieving-error-codes-and-messages" title="Permalink to this headline">¶</a></h1>
 194 <div class="section" id="synopsis">
 195 <h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline">¶</a></h2>
 196 <dl class="simple">
 197 <dt>#include &lt;libmemcached/memcached.h&gt;</dt><dd><p>Compile and link with -lmemcached</p>
 198 </dd>
 199 </dl>
 200 <dl class="cpp function">
 201 <dt id="_CPPv420memcached_last_errorPK12memcached_st">
 202 <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="sig-name 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>
 203 <dd><dl class="field-list simple">
 204 <dt class="field-odd">Parameters</dt>
 205 <dd class="field-odd"><p><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</p>
 206 </dd>
 207 <dt class="field-even">Returns</dt>
 208 <dd class="field-even"><p><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</p>
 209 </dd>
 210 </dl>
 211 </dd></dl>
 212
 213 <dl class="cpp function">
 214 <dt id="_CPPv428memcached_last_error_messagePK12memcached_st">
 215 <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="sig-name 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>
 216 <dd><dl class="field-list simple">
 217 <dt class="field-odd">Parameters</dt>
 218 <dd class="field-odd"><p><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</p>
 219 </dd>
 220 <dt class="field-even">Returns</dt>
 221 <dd class="field-even"><p>message describing the status of last operation</p>
 222 </dd>
 223 </dl>
 224 </dd></dl>
 225
 226 <dl class="cpp function">
 227 <dt id="_CPPv426memcached_last_error_errnoPK12memcached_st">
 228 <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="sig-name 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>
 229 <dd><dl class="field-list simple">
 230 <dt class="field-odd">Parameters</dt>
 231 <dd class="field-odd"><p><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</p>
 232 </dd>
 233 <dt class="field-even">Returns</dt>
 234 <dd class="field-even"><p><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</p>
 235 </dd>
 236 </dl>
 237 </dd></dl>
 238
 239 </div>
 240 <div class="section" id="description">
 241 <h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
 242 <p>Retrieve error codes and messages.</p>
 243 </div>
 244 <div class="section" id="return-value">
 245 <h2>RETURN VALUE<a class="headerlink" href="#return-value" title="Permalink to this headline">¶</a></h2>
 246 <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>
 247 <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
 248 came from a specific server, its hostname and port will be provided in the error
 249 message. Any error message will be returned as 'const char *' which does not
 250 need to be de-allocated. NULL will be returned if no error has occurred.</p>
 251 <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
 252 <em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/3/errno">errno(3)</a></em>.</p>
 253 </div>
 254 <div class="section" id="see-also">
 255 <h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline">¶</a></h2>
 256 <ul class="simple">
 257 <li><p><em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/1/memcached">memcached(1)</a></em></p></li>
 258 <li><p><em class="manpage"><a class="manpage reference external" href="https://linux.die.net/man/3/errno">errno(3)</a></em></p></li>
 259 <li><p><a class="reference internal" href="../libmemcached.html"><span class="doc">C/C++ Client Library for memcached</span></a></p></li>
 260 <li><p><a class="reference internal" href="memcached_strerror.html"><span class="doc">Converting Error Codes to Messages</span></a></p></li>
 261 </ul>
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