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<title>operator==,!=,&lt;,&lt;=,&gt;,&gt;=(std::experimental::propagate_const)</title>
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<h1 id="firstHeading" class="firstHeading">operator==,!=,&lt;,&lt;=,&gt;,&gt;=<small>(std::experimental::propagate_const)</small></h1>
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<div id="contentSub"><span class="subpages">&lt; <a href="cpp.html">cpp</a>&lrm; | <a href="cpp-experimental.html">experimental</a>&lrm; | <a href="cpp-experimental-propagate_const.html">propagate const</a></span></div>
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<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, nullptr_t<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(1)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(2)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, nullptr_t<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(3)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span>nullptr_t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(4)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td>(5)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td>(6)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td>(7)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td>(8)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td>(9)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br /></span>
<p><span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt,<br /></p>
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></div>
</td>
<td>(10)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, <span class="kw4">const</span> U<span class="sy3">&amp;</span> u<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(11)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, <span class="kw4">const</span> U<span class="sy3">&amp;</span> u<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(12)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">==</span><span class="br0">(</span><span class="kw4">const</span> T<span class="sy3">&amp;</span> t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(13)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy3">!</span><span class="sy1">=</span><span class="br0">(</span><span class="kw4">const</span> T<span class="sy3">&amp;</span> t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(14)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, <span class="kw4">const</span> U<span class="sy3">&amp;</span> u<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(15)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, <span class="kw4">const</span> U<span class="sy3">&amp;</span> u<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(16)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, <span class="kw4">const</span> U<span class="sy3">&amp;</span> u<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(17)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>T<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pt, <span class="kw4">const</span> U<span class="sy3">&amp;</span> u<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(18)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&lt;</span><span class="br0">(</span><span class="kw4">const</span> T<span class="sy3">&amp;</span> t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(19)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&gt;</span><span class="br0">(</span><span class="kw4">const</span> T<span class="sy3">&amp;</span> t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(20)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&lt;=</span><span class="br0">(</span><span class="kw4">const</span> T<span class="sy3">&amp;</span> t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(21)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl t-since-libfund_ts_2">
<td>
<div><span class="mw-geshi cpp source-cpp"><span class="kw1">template</span> <span class="sy1">&lt;</span><span class="kw1">class</span> T, <span class="kw1">class</span> U<span class="sy1">&gt;</span><br />
<span class="kw4">constexpr</span> <span class="kw4">bool</span> operator<span class="sy1">&gt;=</span><span class="br0">(</span><span class="kw4">const</span> T<span class="sy3">&amp;</span> t, <span class="kw4">const</span> propagate_const<span class="sy1">&lt;</span>U<span class="sy1">&gt;</span><span class="sy3">&amp;</span> pu<span class="br0">)</span><span class="sy4">;</span></span></div>
</td>
<td>(22)</td>
<td><span class="t-mark-rev t-since-libfund-ts-2 t-mark-ts">(&#24211;&#22522;&#30784; TS v2)</span></td>
</tr>
<tr class="t-dcl-sep">
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
<p>&#22312;&#20108;&#20010; <code>propagate_const</code> &#30340;&#34987;&#21253;&#35013;&#25351;&#38024;&#65292;&#25110;&#19968;&#20010; <code>propagate_const</code> &#21644; <span class="t-c"><span class="mw-geshi cpp source-cpp">nullptr</span></span> &#65292;&#25110;&#19968;&#20010; <code>propagate_const</code> &#21644;&#21478;&#19968;&#23545;&#35937;&#20043;&#38388;&#27604;&#36739;&#12290;</p>
<div class="t-li1"><span class="t-li">1-4)</span> <code>propagate_const</code> &#21644; <span class="t-c"><span class="mw-geshi cpp source-cpp">nullptr</span></span> &#30340;&#30456;&#31561;&#27604;&#36739;&#12290;</div>
<div class="t-li1"><span class="t-li">5-6)</span> &#20108;&#20010; <code>propagate_const</code> &#30340;&#30456;&#31561;&#27604;&#36739;&#12290;</div>
<div class="t-li1"><span class="t-li">7-10)</span> &#20108;&#20010; <code>propagate_const</code> &#30340;&#39034;&#24207;&#27604;&#36739;&#12290;</div>
<div class="t-li1"><span class="t-li">11-14)</span> &#19968;&#20010; <code>propagate_const</code> &#21644;&#21478;&#19968;&#23545;&#35937;&#30340;&#30456;&#31561;&#27604;&#36739;&#12290;</div>
<div class="t-li1"><span class="t-li">15-22)</span> &#19968;&#20010; <code>propagate_const</code> &#21644;&#21478;&#19968;&#23545;&#35937;&#30340;&#39034;&#24207;&#27604;&#36739;&#12290;</div>
<h3><span class="mw-headline" id=".E5.8F.82.E6.95.B0">&#21442;&#25968;</span></h3>
<table class="t-par-begin">
<tr class="t-par">
<td>pt, pu</td>
<td>-</td>
<td>&#35201;&#27604;&#36739;&#30340; <code>propagate_const</code></td>
</tr>
<tr class="t-par">
<td>t, u</td>
<td>-</td>
<td>&#35201;&#27604;&#36739;&#30340;&#21478;&#19968;&#23545;&#35937;</td>
</tr>
</table>
<h3><span class="mw-headline" id=".E8.BF.94.E5.9B.9E.E5.80.BC">&#36820;&#22238;&#20540;</span></h3>
<p>&#20196; <code>t_</code> &#20195;&#34920; <code>propagate_const</code> &#25152;&#21253;&#35013;&#30340;&#24213;&#23618;&#20223;&#25351;&#38024;&#23545;&#35937;</p>
<div class="t-li1"><span class="t-li">1)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">==</span> nullptr</span></span></div>
<div class="t-li1"><span class="t-li">2)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">nullptr <span class="sy1">==</span> pt.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">3)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy3">!</span><span class="sy1">=</span> nullptr</span></span></div>
<div class="t-li1"><span class="t-li">4)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">nullptr <span class="sy3">!</span><span class="sy1">=</span> pt.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">5)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">==</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">6)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy3">!</span><span class="sy1">=</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">7)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&lt;</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">8)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&gt;</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">9)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&lt;=</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">10)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&gt;=</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">11)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">==</span> u</span></span></div>
<div class="t-li1"><span class="t-li">12)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy3">!</span><span class="sy1">=</span> u</span></span></div>
<div class="t-li1"><span class="t-li">13)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">t <span class="sy1">==</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">14)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">t <span class="sy3">!</span><span class="sy1">=</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">15)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&lt;</span> u</span></span></div>
<div class="t-li1"><span class="t-li">16)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&gt;</span> u</span></span></div>
<div class="t-li1"><span class="t-li">17)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&lt;=</span> u</span></span></div>
<div class="t-li1"><span class="t-li">18)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">pt.<span class="me1">t_</span> <span class="sy1">&gt;=</span> u</span></span></div>
<div class="t-li1"><span class="t-li">19)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">t <span class="sy1">&lt;</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">20)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">t <span class="sy1">&gt;</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">21)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">t <span class="sy1">&lt;=</span> pu.<span class="me1">t_</span></span></span></div>
<div class="t-li1"><span class="t-li">22)</span> <span class="t-c"><span class="mw-geshi cpp source-cpp">t <span class="sy1">&gt;=</span> pu.<span class="me1">t_</span></span></span></div>
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