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<h1 id="firstHeading" class="firstHeading"><span style="font-size:0.7em; line-height:130%">std::</span>domain_error</h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-error.html">error</a></span></div>
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<div>&#23450;&#20041;&#20110;&#22836;&#25991;&#20214; <code><a href="cpp-header-stdexcept.html">&lt;stdexcept&gt;</a></code></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">class</span> domain_error<span class="sy4">;</span></span></div>
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<p>&#23450;&#20041;&#20316;&#20026;&#24322;&#24120;&#25243;&#20986;&#30340;&#23545;&#35937;&#31867;&#22411;&#12290;&#23454;&#29616;&#21487;&#29992;&#23427;&#25253;&#21578;&#23450;&#20041;&#22495;&#38169;&#35823;&#65292;&#21363;&#36755;&#20837;&#22312;&#25805;&#20316;&#26377;&#23450;&#20041;&#30340;&#23450;&#20041;&#22495;&#22806;&#30340;&#24773;&#24418;&#12290;</p>
<p>&#26631;&#20934;&#24211;&#32452;&#20214;&#19981;&#25243;&#27492;&#24322;&#24120;&#65288;&#25968;&#23398;&#20989;&#25968;&#25253;&#21578;&#20197;&#25351;&#23450;&#20110; <span class="t-lc"><a href="cpp-numeric-math-math_errhandling.html">math_errhandling</a></span> &#30340;&#26041;&#24335;&#23450;&#20041;&#22495;&#38169;&#35823;&#65289;&#12290;&#28982;&#32780;&#65292;&#31532;&#19977;&#26041;&#24211;&#20351;&#29992;&#23427;&#12290;&#20363;&#22914;&#65292;&#33509;&#21551;&#29992; <code>boost::math::policies::throw_on_error</code> &#65288;&#40664;&#35748;&#35774;&#32622;&#65289;&#21017; <a rel="nofollow" class="external text" href="http://www.boost.org/doc/libs/1_55_0/libs/math/doc/html/math_toolkit/error_handling.html">boost.math</a> &#25243;&#20986; <code>std::domain_error</code> &#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 class="t-dsc-member-div t-dsc-member-nobold-div">
<div><span class="t-lines"><span>(&#26500;&#36896;&#20989;&#25968;)</span></span></div>
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<td>&#26500;&#36896;&#25317;&#26377;&#32473;&#23450;&#28040;&#24687;&#30340;&#26032; <code>domain_error</code> &#23545;&#35937;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><span class="t-lines"><span>operator=</span></span></div>
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<td>&#26367;&#25442; <code>domain_error</code> &#23545;&#35937;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<div><span class="t-lines"><span>what</span></span></div>
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<td>&#36820;&#22238;&#35299;&#37322;&#23383;&#31526;&#20018;<br />
<span class="t-mark">(&#20844;&#24320;&#25104;&#21592;&#20989;&#25968;)</span></td>
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<h2><span class="mw-headline" id="std::domain_error::domain_error"><span style="font-size:0.7em; line-height:130%">std::domain_error::</span>domain_error</span></h2>
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<div><span class="mw-geshi cpp source-cpp">domain_error<span class="br0">(</span> <span class="kw4">const</span> <a href="cpp-string-basic_string.html"><span class="kw1229">std::<span class="me2">string</span></span></a><span class="sy3">&amp;</span> what_arg <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(1)</td>
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<div><span class="mw-geshi cpp source-cpp">domain_error<span class="br0">(</span> <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> what_arg <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td>(2)</td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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<td rowspan="142">(3)</td>
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<div><span class="mw-geshi cpp source-cpp">domain_error<span class="br0">(</span> <span class="kw4">const</span> domain_error<span class="sy3">&amp;</span> other <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp">domain_error<span class="br0">(</span> <span class="kw4">const</span> domain_error<span class="sy3">&amp;</span> other <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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<div class="t-li1"><span class="t-li">1-2)</span> &#26500;&#36896;&#20197; <code>what_arg</code> &#20026;&#35299;&#37322;&#23383;&#31526;&#20018;&#30340;&#24322;&#24120;&#23545;&#35937;&#65292;&#35299;&#37322;&#23383;&#31526;&#20018;&#33021;&#36890;&#36807; <a href="cpp-error-exception-what.html"><tt>what()</tt></a> &#35775;&#38382;&#12290;</div>
<div class="t-li1"><span class="t-li">3)</span> &#22797;&#21046;&#26500;&#36896;&#20989;&#25968;&#12290;<span class="t-rev-inl t-since-cxx11"><span>&#33509; <code>*this</code> &#19982; <code>other</code> &#22343;&#25317;&#26377;&#21160;&#24577;&#31867;&#22411; <code>std::domain_error</code> &#21017; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-string-byte-strcmp.html"><span class="kw1145">std::<span class="me2">strcmp</span></span></a><span class="br0">(</span>what<span class="br0">(</span><span class="br0">)</span>, other.<span class="me1">what</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">==</span> <span class="nu0">0</span></span></span> &#12290;</span> <span><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></span></span></div>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
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<td>what_arg</td>
<td>-</td>
<td>&#35299;&#37322;&#23383;&#31526;&#20018;</td>
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<tr class="t-par">
<td>other</td>
<td>-</td>
<td>&#35201;&#22797;&#21046;&#30340;&#21478;&#19968;&#24322;&#24120;&#23545;&#35937;</td>
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<h3><span class="mw-headline" id=".E5.BC.82.E5.B8.B8">&#24322;&#24120;</span></h3>
<div class="t-li1"><span class="t-li">1-2)</span> &#21487;&#33021;&#25243;&#20986; <span class="t-lc"><a href="cpp-memory-new-bad_alloc.html">std::bad_alloc</a></span></div>
<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3">&#27880;&#35299;</span></h3>
<p>&#22240;&#20026;&#19981;&#23481;&#35768;&#22797;&#21046; <code>std::domain_error</code> &#25243;&#20986;&#24322;&#24120;&#65292;&#36890;&#24120;&#23558;&#27492;&#28040;&#24687;&#22312;&#20869;&#37096;&#23384;&#20648;&#20026;&#20998;&#31163;&#20998;&#37197;&#30340;&#24341;&#29992;&#35745;&#25968;&#23383;&#31526;&#20018;&#12290;&#36825;&#20063;&#26159;&#26500;&#36896;&#20989;&#25968;&#19981;&#25509;&#25910; <code>std::string&amp;&amp;</code> &#21442;&#25968;&#30340;&#29702;&#30001;&#65306;&#26080;&#35770;&#22914;&#20309;&#23427;&#24517;&#39035;&#22797;&#21046;&#20869;&#23481;&#12290;</p>
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<h2><span class="mw-headline" id="std::domain_error::operator.3D"><span style="font-size:0.7em; line-height:130%">std::domain_error::</span>operator=</span></h2>
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<div><span class="mw-geshi cpp source-cpp">domain_error<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span> <span class="kw4">const</span> domain_error<span class="sy3">&amp;</span> other <span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
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<div><span class="mw-geshi cpp source-cpp">domain_error<span class="sy3">&amp;</span> operator<span class="sy1">=</span><span class="br0">(</span> <span class="kw4">const</span> domain_error<span class="sy3">&amp;</span> other <span class="br0">)</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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<p>&#20197; <code>other</code> &#30340;&#20869;&#23481;&#36171;&#20540;&#12290;<span class="t-rev-inl t-since-cxx11"><span>&#33509; <code>*this</code> &#19982; <code>other</code> &#22343;&#25317;&#26377;&#21160;&#24577;&#31867;&#22411; <code>std::domain_error</code> &#21017;&#36171;&#20540;&#21518; <span class="t-c"><span class="mw-geshi cpp source-cpp"><a href="cpp-string-byte-strcmp.html"><span class="kw1145">std::<span class="me2">strcmp</span></span></a><span class="br0">(</span>what<span class="br0">(</span><span class="br0">)</span>, other.<span class="me1">what</span><span class="br0">(</span><span class="br0">)</span><span class="br0">)</span> <span class="sy1">==</span> <span class="nu0">0</span></span></span> &#12290;</span> <span><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></span></span></p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0_2">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
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<td>other</td>
<td>-</td>
<td>&#29992;&#20197;&#36171;&#20540;&#30340;&#21478;&#19968;&#24322;&#24120;&#23545;&#35937;</td>
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<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p><span class="t-c"><span class="mw-geshi cpp source-cpp"><span class="sy2">*</span>this</span></span></p>
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<div class="t-member">
<h2><span class="mw-headline" id="std::domain_error::what"><span style="font-size:0.7em; line-height:130%">std::domain_error::</span>what</span></h2>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> what<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">throw</span><span class="br0">(</span><span class="br0">)</span><span class="sy4">;</span></span></div>
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<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-until-cxx11">(C++11 &#21069;)</span></td>
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<tr class="t-dcl t-since-cxx11">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">virtual</span> <span class="kw4">const</span> <span class="kw4">char</span><span class="sy2">*</span> what<span class="br0">(</span><span class="br0">)</span> <span class="kw4">const</span> <span class="kw1">noexcept</span><span class="sy4">;</span></span></div>
</td>
<td class="t-dcl-nopad"></td>
<td><span class="t-mark-rev t-since-cxx11">(C++11 &#36215;)</span></td>
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</tbody>
<tbody>
<tr class="t-dcl-sep">
<td></td>
<td></td>
<td></td>
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<p>&#36820;&#22238;&#35299;&#37322;&#23383;&#31526;&#20018;&#12290;</p>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0_3">&#21442;&#25968;</span></h3>
<p>&#65288;&#26080;&#65289;</p>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC_2">&#36820;&#22238;&#20540;</span></h3>
<p>&#25351;&#21521;&#26377;&#35299;&#37322;&#20449;&#24687;&#30340;&#31354;&#32456;&#27490;&#23383;&#31526;&#20018;&#30340;&#25351;&#38024;&#12290;&#35813;&#23383;&#31526;&#20018;&#36866;&#21512;&#36716;&#25442;&#24182;&#26174;&#31034;&#20026; <span class="t-lc"><a href="cpp-string-basic_string.html">std::wstring</a></span> &#12290;&#20445;&#35777;&#35813;&#25351;&#38024;&#33267;&#23569;&#21040;&#33719;&#24471;&#23427;&#26469;&#28304;&#30340;&#24322;&#24120;&#23545;&#35937;&#34987;&#38144;&#27585;&#65292;&#25110;&#22312;&#35813;&#24322;&#24120;&#23545;&#35937;&#19978;&#35843;&#29992;&#38750; const &#25104;&#21592;&#20989;&#25968;&#65288;&#20363;&#22914;&#22797;&#21046;&#36171;&#20540;&#36816;&#31639;&#31526;&#65289;&#20026;&#27490;&#21512;&#27861;&#12290;</p>
<h3><span class="mw-headline" id=".E6.B3.A8.E8.A7.A3_2">&#27880;&#35299;</span></h3>
<p>&#20801;&#35768;&#20294;&#19981;&#35201;&#27714;&#23454;&#29616;&#35206;&#20889; <code>what()</code> &#12290;</p>
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<div class="t-inherited">
<h2><span class="mw-headline" id=".E7.BB.A7.E6.89.BF.E8.87.AA_std::logic_error">&#32487;&#25215;&#33258; <a href="cpp-error-logic_error.html"><span style="font-size:0.7em; line-height:130%">std::</span>logic_error</a></span></h2>
</div>
<div class="t-inherited">
<h2><span class="mw-headline" id=".E7.BB.A7.E6.89.BF.E8.87.AA_std::exception">&#32487;&#25215;&#33258; <a href="cpp-error-exception.html"><span style="font-size:0.7em; line-height:130%">std::</span>exception</a></span></h2>
<h3><span class="mw-headline" id=".E6.88.90.E5.91.98.E5.87.BD.E6.95.B0_2">&#25104;&#21592;&#20989;&#25968;</span></h3>
<table class="t-dsc-begin">
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<div class="t-dsc-member-div t-dsc-member-nobold-div">
<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>
</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 class="t-dsc-member-div">
<div><a href="cpp-error-exception-what.html"><span class="t-lines"><span>what</span></span></a></div>
<div><span class="t-lines"><span><span class="t-cmark">[&#34394;]</span></span></span></div>
</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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<div class="visualClear"></div>
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