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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>regex_error</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-regex.html">regex</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-regex.html">&lt;regex&gt;</a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">class</span> regex_error<span class="sy4">;</span></span></div>
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<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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<p>&#23450;&#20041;&#25243;&#20986;&#30340;&#24322;&#24120;&#23545;&#35937;&#31867;&#22411;&#65292;&#20197;&#25253;&#21578;&#27491;&#21017;&#34920;&#36798;&#24335;&#24211;&#20013;&#30340;&#38169;&#35823;&#12290;</p>
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<p><span style="font-size:0.7em; line-height:130%">&#32487;&#25215;&#22270;</span></p>
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<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0">&#25104;&#21592;&#20989;&#25968;</span></h3>
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<div><a href="cpp-regex-regex_error-regex_error.html"><span class="t-lines"><span>(&#26500;&#36896;&#20989;&#25968;)</span></span></a></div>
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<td>&#26500;&#36896; <code>regex_error</code> &#23545;&#35937;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><a href="cpp-regex-regex_error-operator=.html"><span class="t-lines"><span>operator=</span></span></a></div>
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<td>&#26367;&#25442; <code>regex_error</code> &#23545;&#35937;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><a href="cpp-regex-regex_error-code.html"><span class="t-lines"><span>code</span></span></a></div>
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<td>&#33719;&#24471; <code>regex_error</code> &#30340; <span class="t-lc"><a href="cpp-regex-error_type.html">std::regex_constants::error_type</a></span><br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<h2><span class="mw-headline" id=".E7.BB.A7.E6.89.BF.E8.87.AA_std::runtime_error">&#32487;&#25215;&#33258; <a href="cpp-error-runtime_error.html"><span style="font-size:0.7em; line-height:130%">std::</span>runtime_error</a></span></h2>
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<div><a href="cpp-error-exception-~exception.html"><span class="t-lines"><span>(&#26512;&#26500;&#20989;&#25968;)</span></span></a></div>
<div><span class="t-lines"><span><span class="t-cmark">[&#34394;]</span></span></span></div>
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<td>&#26512;&#26500;&#35813;&#24322;&#24120;&#23545;&#35937;<br />
<span class="t-mark">(<code>std::exception</code> &#30340;&#34394;&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><a href="cpp-error-exception-what.html"><span class="t-lines"><span>what</span></span></a></div>
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<td>&#36820;&#22238;&#35299;&#37322;&#24615;&#23383;&#31526;&#20018;<br />
<span class="t-mark">(<code>std::exception</code> &#30340;&#34394;&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<h3><span class="mw-headline" id=".E7.A4.BA.E4.BE.8B">&#31034;&#20363;</span></h3>
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<pre class="de1"><span class="co2">#include &lt;regex&gt;</span>
<span class="co2">#include &lt;iostream&gt;</span>
<span class="kw4">int</span> main<span class="br0">(</span><span class="br0">)</span>
<span class="br0">{</span>
<span class="kw1">try</span> <span class="br0">{</span>
<a href="cpp-regex-basic_regex.html"><span class="kw2000">std::<span class="me2">regex</span></span></a> re<span class="br0">(</span><span class="st0">&quot;[a-b][a&quot;</span><span class="br0">)</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="kw1">catch</span> <span class="br0">(</span><span class="kw4">const</span> std<span class="sy4">::</span><span class="me2">regex_error</span><span class="sy3">&amp;</span> e<span class="br0">)</span> <span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;regex_error caught: &quot;</span> <span class="sy1">&lt;&lt;</span> e.<span class="me1">what</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">&lt;&lt;</span> <span class="st0">&#39;<span class="es1">\n</span>&#39;</span><span class="sy4">;</span>
<span class="kw1">if</span> <span class="br0">(</span>e.<span class="me1">code</span><span class="br0">(</span><span class="br0">)</span> <span class="sy1">==</span> <a href="cpp-regex-error_type.html"><span class="kw2056">std::<span class="me2">regex_constants</span><span class="sy4">::</span><span class="me2">error_brack</span></span></a><span class="br0">)</span> <span class="br0">{</span>
<a href="cpp-io-cout.html"><span class="kw1758">std::<span class="me2">cout</span></span></a> <span class="sy1">&lt;&lt;</span> <span class="st0">&quot;The code was error_brack<span class="es1">\n</span>&quot;</span><span class="sy4">;</span>
<span class="br0">}</span>
<span class="br0">}</span>
<span class="br0">}</span></pre></div>
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<p>&#21487;&#33021;&#30340;&#36755;&#20986;&#65306;</p>
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<pre class="de1">regex_error caught: The expression contained mismatched [ and ].
The code was error_brack</pre></div>
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