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<div class="title">std::pair< _T1, _T2 > Struct Template Reference<div class="ingroups"><a class="el" href="a01480.html">Utilities</a></div></div> </div>
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<p>Inherits std::__pair_base< _U1, _U2 >.</p>
<table class="memberdecls">
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Public Types</h2></td></tr>
<tr class="memitem:a685ed9e4eb27e5926029813616218270"><td class="memTemplParams" colspan="2">template<typename _U1 , typename _U2 > </td></tr>
<tr class="memitem:a685ed9e4eb27e5926029813616218270"><td class="memTemplItemLeft" align="right" valign="top">using </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a07767.html#a685ed9e4eb27e5926029813616218270">_PCCFP</a> = _PCC<!<a class="el" href="a03883.html">is_same</a>< _T1, _U1 >::value||!<a class="el" href="a03883.html">is_same</a>< _T2, _U2 >::value, _T1, _T2 ></td></tr>
<tr class="separator:a685ed9e4eb27e5926029813616218270"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1f43fbe0731e417b35a98d52ac6b8287"><td class="memItemLeft" align="right" valign="top">using </td><td class="memItemRight" valign="bottom"><a class="el" href="a07767.html#a1f43fbe0731e417b35a98d52ac6b8287">_PCCP</a> = _PCC< true, _T1, _T2 ></td></tr>
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typedef _T1 </td><td class="memItemRight" valign="bottom"><b>first_type</b></td></tr>
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<tr class="memitem:a6d205c1eab800cb27d82060d11d531a3"><td class="memItemLeft" align="right" valign="top">typedef _T2 </td><td class="memItemRight" valign="bottom"><a class="el" href="a07767.html#a6d205c1eab800cb27d82060d11d531a3">second_type</a></td></tr>
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Public Member Functions</h2></td></tr>
<tr class="memitem:a6929daaffd0e81a977ee4a694ead8403"><td class="memTemplParams" colspan="2">template<typename _U1 = _T1, typename _U2 = _T2, typename enable_if< __and_< __is_implicitly_default_constructible< _U1 >, __is_implicitly_default_constructible< _U2 >> ::value, bool >::type = true> </td></tr>
<tr class="memitem:a6929daaffd0e81a977ee4a694ead8403"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a07767.html#a6929daaffd0e81a977ee4a694ead8403">pair</a> ()</td></tr>
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template<typename _U1 = _T1, typename _U2 = _T2, typename enable_if< _PCCP::template _ConstructiblePair< _U1, _U2 >() &&_PCCP::template _ImplicitlyConvertiblePair< _U1, _U2 >(), bool >::type = true> </td></tr>
<tr class="memitem:a14dabd1f88f93575a9b2c4574caf91a5"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (const _T1 &__a, const _T2 &__b)</td></tr>
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template<typename _U1 = _T1, typename _U2 = _T2, typename enable_if< _PCCP::template _ConstructiblePair< _U1, _U2 >() &&!_PCCP::template _ImplicitlyConvertiblePair< _U1, _U2 >(), bool >::type = false> </td></tr>
<tr class="memitem:a14dabd1f88f93575a9b2c4574caf91a5"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (const _T1 &__a, const _T2 &__b)</td></tr>
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template<typename _U1 , typename _U2 , typename enable_if< _PCCFP< _U1, _U2 >::template _ConstructiblePair< _U1, _U2 >() &&_PCCFP< _U1, _U2 >::template _ImplicitlyConvertiblePair< _U1, _U2 >(), bool >::type = true> </td></tr>
<tr class="memitem:aa6a6061b4e85a7436f647991330588f9"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (const <a class="el" href="a07767.html">pair</a>< _U1, _U2 > &__p)</td></tr>
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template<typename _U1 , typename _U2 , typename enable_if< _PCCFP< _U1, _U2 >::template _ConstructiblePair< _U1, _U2 >() &&!_PCCFP< _U1, _U2 >::template _ImplicitlyConvertiblePair< _U1, _U2 >(), bool >::type = false> </td></tr>
<tr class="memitem:aa6a6061b4e85a7436f647991330588f9"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (const <a class="el" href="a07767.html">pair</a>< _U1, _U2 > &__p)</td></tr>
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constexpr </td><td class="memItemRight" valign="bottom"><b>pair</b> (const <a class="el" href="a07767.html">pair</a> &)=default</td></tr>
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constexpr </td><td class="memItemRight" valign="bottom"><b>pair</b> (<a class="el" href="a07767.html">pair</a> &&)=default</td></tr>
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template<typename _U1 , typename enable_if< _PCCP::template _MoveCopyPair< true, _U1, _T2 >(), bool >::type = true> </td></tr>
<tr class="memitem:ab3d51f2fb17fcddce58e6adae0448557"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (_U1 &&__x, const _T2 &__y)</td></tr>
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template<typename _U1 , typename enable_if< _PCCP::template _MoveCopyPair< false, _U1, _T2 >(), bool >::type = false> </td></tr>
<tr class="memitem:ab3d51f2fb17fcddce58e6adae0448557"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (_U1 &&__x, const _T2 &__y)</td></tr>
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template<typename _U2 , typename enable_if< _PCCP::template _CopyMovePair< true, _T1, _U2 >(), bool >::type = true> </td></tr>
<tr class="memitem:ac42569bef096ab870f5d045061bab2fb"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (const _T1 &__x, _U2 &&__y)</td></tr>
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template<typename _U2 , typename enable_if< _PCCP::template _CopyMovePair< false, _T1, _U2 >(), bool >::type = false> </td></tr>
<tr class="memitem:a55e6dfc9ff1fda9455df9e94675f5839"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (const _T1 &__x, _U2 &&__y)</td></tr>
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template<typename _U1 , typename _U2 , typename enable_if< _PCCP::template _MoveConstructiblePair< _U1, _U2 >() &&_PCCP::template _ImplicitlyMoveConvertiblePair< _U1, _U2 >(), bool >::type = true> </td></tr>
<tr class="memitem:a05bd6d8ca2d2910333584c2b4cde9266"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (_U1 &&__x, _U2 &&__y)</td></tr>
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template<typename _U1 , typename _U2 , typename enable_if< _PCCP::template _MoveConstructiblePair< _U1, _U2 >() &&!_PCCP::template _ImplicitlyMoveConvertiblePair< _U1, _U2 >(), bool >::type = false> </td></tr>
<tr class="memitem:a05bd6d8ca2d2910333584c2b4cde9266"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (_U1 &&__x, _U2 &&__y)</td></tr>
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template<typename _U1 , typename _U2 , typename enable_if< _PCCFP< _U1, _U2 >::template _MoveConstructiblePair< _U1, _U2 >() &&_PCCFP< _U1, _U2 >::template _ImplicitlyMoveConvertiblePair< _U1, _U2 >(), bool >::type = true> </td></tr>
<tr class="memitem:aab4d271641115d347fe5a56d2d6e0d95"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (<a class="el" href="a07767.html">pair</a>< _U1, _U2 > &&__p)</td></tr>
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template<typename _U1 , typename _U2 , typename enable_if< _PCCFP< _U1, _U2 >::template _MoveConstructiblePair< _U1, _U2 >() &&!_PCCFP< _U1, _U2 >::template _ImplicitlyMoveConvertiblePair< _U1, _U2 >(), bool >::type = false> </td></tr>
<tr class="memitem:aab4d271641115d347fe5a56d2d6e0d95"><td class="memTemplItemLeft" align="right" valign="top">constexpr </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (<a class="el" href="a07767.html">pair</a>< _U1, _U2 > &&__p)</td></tr>
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template<typename... _Args1, typename... _Args2> </td></tr>
<tr class="memitem:gade65ba1c1fd684cf294419ce44f400d6"><td class="memTemplItemLeft" align="right" valign="top"> </td><td class="memTemplItemRight" valign="bottom"><b>pair</b> (<a class="el" href="a07747.html">piecewise_construct_t</a>, <a class="el" href="a02883.html">tuple</a>< _Args1... >, <a class="el" href="a02883.html">tuple</a>< _Args2... >)</td></tr>
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<a class="el" href="a07767.html">pair</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (typename <a class="el" href="a03047.html">conditional</a>< __and_< <a class="el" href="a03699.html">is_copy_assignable</a>< _T1 >, <a class="el" href="a03699.html">is_copy_assignable</a>< _T2 >>::value, const <a class="el" href="a07767.html">pair</a> &, const __nonesuch_no_braces & >::type __p)</td></tr>
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<a class="el" href="a07767.html">pair</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (typename <a class="el" href="a03047.html">conditional</a>< __and_< <a class="el" href="a03715.html">is_move_assignable</a>< _T1 >, <a class="el" href="a03715.html">is_move_assignable</a>< _T2 >>::value, <a class="el" href="a07767.html">pair</a> &&, __nonesuch_no_braces && >::type __p) noexcept(__and_< <a class="el" href="a03755.html">is_nothrow_move_assignable</a>< _T1 >, <a class="el" href="a03755.html">is_nothrow_move_assignable</a>< _T2 >>::value)</td></tr>
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template<typename _U1 , typename _U2 > </td></tr>
<tr class="memitem:a0fb2af96f3dc4e3797f7c135dfdac88d"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a04191.html">enable_if</a>< __and_< <a class="el" href="a03683.html">is_assignable</a>< _T1 &, const _U1 & >, <a class="el" href="a03683.html">is_assignable</a>< _T2 &, const _U2 & > >::value, <a class="el" href="a07767.html">pair</a> & >::type </td><td class="memTemplItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="a07767.html">pair</a>< _U1, _U2 > &__p)</td></tr>
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template<typename _U1 , typename _U2 > </td></tr>
<tr class="memitem:a04b59b45a90986c7624bbe612e4a015f"><td class="memTemplItemLeft" align="right" valign="top"><a class="el" href="a04191.html">enable_if</a>< __and_< <a class="el" href="a03683.html">is_assignable</a>< _T1 &, _U1 && >, <a class="el" href="a03683.html">is_assignable</a>< _T2 &, _U2 && > >::value, <a class="el" href="a07767.html">pair</a> & >::type </td><td class="memTemplItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="a07767.html">pair</a>< _U1, _U2 > &&__p)</td></tr>
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void </td><td class="memItemRight" valign="bottom"><b>swap</b> (<a class="el" href="a07767.html">pair</a> &__p) noexcept(__and_< __is_nothrow_swappable< _T1 >, __is_nothrow_swappable< _T2 >>::value)</td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-attribs"></a>
Public Attributes</h2></td></tr>
<tr class="memitem:a198b03cffc037835dc1dc01c926ce251"><td class="memItemLeft" align="right" valign="top">_T1 </td><td class="memItemRight" valign="bottom"><a class="el" href="a07767.html#a198b03cffc037835dc1dc01c926ce251">first</a></td></tr>
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<tr class="memitem:a91179413226db12e66346d3673b7835f"><td class="memItemLeft" align="right" valign="top">_T2 </td><td class="memItemRight" valign="bottom"><a class="el" href="a07767.html#a91179413226db12e66346d3673b7835f">second</a></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><h3>template<typename _T1, typename _T2><br />
struct std::pair< _T1, _T2 ></h3>
<p>Struct holding two objects of arbitrary type. </p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">_T1</td><td>Type of first object. </td></tr>
<tr><td class="paramname">_T2</td><td>Type of second object. </td></tr>
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</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="a00572_source.html#l00208">208</a> of file <a class="el" href="a00572_source.html">stl_pair.h</a>.</p>
</div><h2 class="groupheader">Member Typedef Documentation</h2>
<a id="a685ed9e4eb27e5926029813616218270"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a685ed9e4eb27e5926029813616218270">◆ </a></span>_PCCFP</h2>
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template<typename _T1, typename _T2> </div>
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template<typename _U1 , typename _U2 > </div>
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<tr>
<td class="memname">using <a class="el" href="a07767.html">std::pair</a>< _T1, _T2 >::<a class="el" href="a07767.html#a685ed9e4eb27e5926029813616218270">_PCCFP</a> = _PCC<!<a class="el" href="a03883.html">is_same</a><_T1, _U1>::value || !<a class="el" href="a03883.html">is_same</a><_T2, _U2>::value, _T1, _T2></td>
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<p>There is also a templated copy ctor for the <code>pair</code> class itself. </p>
<p class="definition">Definition at line <a class="el" href="a00572_source.html#l00283">283</a> of file <a class="el" href="a00572_source.html">stl_pair.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a1f43fbe0731e417b35a98d52ac6b8287">◆ </a></span>_PCCP</h2>
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template<typename _T1, typename _T2> </div>
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<td class="memname">using <a class="el" href="a07767.html">std::pair</a>< _T1, _T2 >::<a class="el" href="a07767.html#a1f43fbe0731e417b35a98d52ac6b8287">_PCCP</a> = _PCC<true, _T1, _T2></td>
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<p>Two objects may be passed to a <code>pair</code> constructor to be copied. </p>
<p class="definition">Definition at line <a class="el" href="a00572_source.html#l00252">252</a> of file <a class="el" href="a00572_source.html">stl_pair.h</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a6d205c1eab800cb27d82060d11d531a3">◆ </a></span>second_type</h2>
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template<typename _T1, typename _T2> </div>
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<td class="memname">typedef _T2 <a class="el" href="a07767.html">std::pair</a>< _T1, _T2 >::<a class="el" href="a07767.html#a6d205c1eab800cb27d82060d11d531a3">second_type</a></td>
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<p><code>first_type</code> is the first bound type </p>
<p class="definition">Definition at line <a class="el" href="a00572_source.html#l00212">212</a> of file <a class="el" href="a00572_source.html">stl_pair.h</a>.</p>
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<h2 class="groupheader">Constructor & Destructor Documentation</h2>
<a id="a6929daaffd0e81a977ee4a694ead8403"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6929daaffd0e81a977ee4a694ead8403">◆ </a></span>pair()</h2>
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template<typename _T1, typename _T2> </div>
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template<typename _U1 = _T1, typename _U2 = _T2, typename enable_if< __and_< __is_implicitly_default_constructible< _U1 >, __is_implicitly_default_constructible< _U2 >> ::value, bool >::type = true> </div>
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<td class="memname">constexpr <a class="el" href="a07767.html">std::pair</a>< _T1, _T2 >::<a class="el" href="a07767.html">pair</a> </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p><code>second</code> is a copy of the second object </p>
<p>The default constructor creates <code>first</code> and <code>second</code> using their respective default constructors. </p>
<p class="definition">Definition at line <a class="el" href="a00572_source.html#l00229">229</a> of file <a class="el" href="a00572_source.html">stl_pair.h</a>.</p>
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<h2 class="groupheader">Member Data Documentation</h2>
<a id="a198b03cffc037835dc1dc01c926ce251"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a198b03cffc037835dc1dc01c926ce251">◆ </a></span>first</h2>
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template<typename _T1, typename _T2> </div>
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<td class="memname">_T1 <a class="el" href="a07767.html">std::pair</a>< _T1, _T2 >::first</td>
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<p><code>second_type</code> is the second bound type </p>
<p class="definition">Definition at line <a class="el" href="a00572_source.html#l00214">214</a> of file <a class="el" href="a00572_source.html">stl_pair.h</a>.</p>
<p class="reference">Referenced by <a class="el" href="a00890_source.html#l00185">__gnu_parallel::__find_template()</a>, <a class="el" href="a00527_source.html#l05746">std::__sample()</a>, <a class="el" href="a00755_source.html#l00122">__gnu_debug::__valid_range_aux()</a>, <a class="el" href="a00584_source.html#l00509">std::set< _Key, _Compare, _Alloc >::insert()</a>, <a class="el" href="a00572_source.html#l00454">std::operator<()</a>, <a class="el" href="a00572_source.html#l00448">std::operator==()</a>, and <a class="el" href="a00467_source.html#l00465">std::regex_replace()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a91179413226db12e66346d3673b7835f">◆ </a></span>second</h2>
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template<typename _T1, typename _T2> </div>
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<td class="memname">_T2 <a class="el" href="a07767.html">std::pair</a>< _T1, _T2 >::second</td>
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<p><code>first</code> is a copy of the first object </p>
<p class="definition">Definition at line <a class="el" href="a00572_source.html#l00215">215</a> of file <a class="el" href="a00572_source.html">stl_pair.h</a>.</p>
<p class="reference">Referenced by <a class="el" href="a00527_source.html#l05746">std::__sample()</a>, <a class="el" href="a00755_source.html#l00122">__gnu_debug::__valid_range_aux()</a>, <a class="el" href="a00584_source.html#l00509">std::set< _Key, _Compare, _Alloc >::insert()</a>, <a class="el" href="a00572_source.html#l00454">std::operator<()</a>, <a class="el" href="a00572_source.html#l00448">std::operator==()</a>, and <a class="el" href="a00467_source.html#l00465">std::regex_replace()</a>.</p>
</div>
</div>
<hr/>The documentation for this struct was generated from the following files:<ul>
<li><a class="el" href="a00572_source.html">stl_pair.h</a></li>
<li><a class="el" href="a00161_source.html">tuple</a></li>
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