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<td class="headerValue">2022-06-07 00:30:42</td>
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<td class="headerCovTableEntry">8</td>
<td class="headerCovTableEntry">9</td>
<td class="headerCovTableEntryMed">88.9 %</td>
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<pre class="sourceHeading"> Branch data Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : : // Allocators -*- C++ -*-</a>
<a name="2"><span class="lineNum"> 2 </span> : : </a>
<a name="3"><span class="lineNum"> 3 </span> : : // Copyright (C) 2001-2019 Free Software Foundation, Inc.</a>
<a name="4"><span class="lineNum"> 4 </span> : : //</a>
<a name="5"><span class="lineNum"> 5 </span> : : // This file is part of the GNU ISO C++ Library. This library is free</a>
<a name="6"><span class="lineNum"> 6 </span> : : // software; you can redistribute it and/or modify it under the</a>
<a name="7"><span class="lineNum"> 7 </span> : : // terms of the GNU General Public License as published by the</a>
<a name="8"><span class="lineNum"> 8 </span> : : // Free Software Foundation; either version 3, or (at your option)</a>
<a name="9"><span class="lineNum"> 9 </span> : : // any later version.</a>
<a name="10"><span class="lineNum"> 10 </span> : : </a>
<a name="11"><span class="lineNum"> 11 </span> : : // This library is distributed in the hope that it will be useful,</a>
<a name="12"><span class="lineNum"> 12 </span> : : // but WITHOUT ANY WARRANTY; without even the implied warranty of</a>
<a name="13"><span class="lineNum"> 13 </span> : : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</a>
<a name="14"><span class="lineNum"> 14 </span> : : // GNU General Public License for more details.</a>
<a name="15"><span class="lineNum"> 15 </span> : : </a>
<a name="16"><span class="lineNum"> 16 </span> : : // Under Section 7 of GPL version 3, you are granted additional</a>
<a name="17"><span class="lineNum"> 17 </span> : : // permissions described in the GCC Runtime Library Exception, version</a>
<a name="18"><span class="lineNum"> 18 </span> : : // 3.1, as published by the Free Software Foundation.</a>
<a name="19"><span class="lineNum"> 19 </span> : : </a>
<a name="20"><span class="lineNum"> 20 </span> : : // You should have received a copy of the GNU General Public License and</a>
<a name="21"><span class="lineNum"> 21 </span> : : // a copy of the GCC Runtime Library Exception along with this program;</a>
<a name="22"><span class="lineNum"> 22 </span> : : // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</a>
<a name="23"><span class="lineNum"> 23 </span> : : // &lt;http://www.gnu.org/licenses/&gt;.</a>
<a name="24"><span class="lineNum"> 24 </span> : : </a>
<a name="25"><span class="lineNum"> 25 </span> : : /*</a>
<a name="26"><span class="lineNum"> 26 </span> : : * Copyright (c) 1996-1997</a>
<a name="27"><span class="lineNum"> 27 </span> : : * Silicon Graphics Computer Systems, Inc.</a>
<a name="28"><span class="lineNum"> 28 </span> : : *</a>
<a name="29"><span class="lineNum"> 29 </span> : : * Permission to use, copy, modify, distribute and sell this software</a>
<a name="30"><span class="lineNum"> 30 </span> : : * and its documentation for any purpose is hereby granted without fee,</a>
<a name="31"><span class="lineNum"> 31 </span> : : * provided that the above copyright notice appear in all copies and</a>
<a name="32"><span class="lineNum"> 32 </span> : : * that both that copyright notice and this permission notice appear</a>
<a name="33"><span class="lineNum"> 33 </span> : : * in supporting documentation. Silicon Graphics makes no</a>
<a name="34"><span class="lineNum"> 34 </span> : : * representations about the suitability of this software for any</a>
<a name="35"><span class="lineNum"> 35 </span> : : * purpose. It is provided &quot;as is&quot; without express or implied warranty.</a>
<a name="36"><span class="lineNum"> 36 </span> : : */</a>
<a name="37"><span class="lineNum"> 37 </span> : : </a>
<a name="38"><span class="lineNum"> 38 </span> : : /** @file bits/allocator.h</a>
<a name="39"><span class="lineNum"> 39 </span> : : * This is an internal header file, included by other library headers.</a>
<a name="40"><span class="lineNum"> 40 </span> : : * Do not attempt to use it directly. @headername{memory}</a>
<a name="41"><span class="lineNum"> 41 </span> : : */</a>
<a name="42"><span class="lineNum"> 42 </span> : : </a>
<a name="43"><span class="lineNum"> 43 </span> : : #ifndef _ALLOCATOR_H</a>
<a name="44"><span class="lineNum"> 44 </span> : : #define _ALLOCATOR_H 1</a>
<a name="45"><span class="lineNum"> 45 </span> : : </a>
<a name="46"><span class="lineNum"> 46 </span> : : #include &lt;bits/c++allocator.h&gt; // Define the base class to std::allocator.</a>
<a name="47"><span class="lineNum"> 47 </span> : : #include &lt;bits/memoryfwd.h&gt;</a>
<a name="48"><span class="lineNum"> 48 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="49"><span class="lineNum"> 49 </span> : : #include &lt;type_traits&gt;</a>
<a name="50"><span class="lineNum"> 50 </span> : : #endif</a>
<a name="51"><span class="lineNum"> 51 </span> : : </a>
<a name="52"><span class="lineNum"> 52 </span> : : #define __cpp_lib_incomplete_container_elements 201505</a>
<a name="53"><span class="lineNum"> 53 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="54"><span class="lineNum"> 54 </span> : : # define __cpp_lib_allocator_is_always_equal 201411</a>
<a name="55"><span class="lineNum"> 55 </span> : : #endif</a>
<a name="56"><span class="lineNum"> 56 </span> : : </a>
<a name="57"><span class="lineNum"> 57 </span> : : namespace std _GLIBCXX_VISIBILITY(default)</a>
<a name="58"><span class="lineNum"> 58 </span> : : {</a>
<a name="59"><span class="lineNum"> 59 </span> : : _GLIBCXX_BEGIN_NAMESPACE_VERSION</a>
<a name="60"><span class="lineNum"> 60 </span> : : </a>
<a name="61"><span class="lineNum"> 61 </span> : : /**</a>
<a name="62"><span class="lineNum"> 62 </span> : : * @addtogroup allocators</a>
<a name="63"><span class="lineNum"> 63 </span> : : * @{</a>
<a name="64"><span class="lineNum"> 64 </span> : : */</a>
<a name="65"><span class="lineNum"> 65 </span> : : </a>
<a name="66"><span class="lineNum"> 66 </span> : : /// allocator&lt;void&gt; specialization.</a>
<a name="67"><span class="lineNum"> 67 </span> : : template&lt;&gt;</a>
<a name="68"><span class="lineNum"> 68 </span> : : class allocator&lt;void&gt;</a>
<a name="69"><span class="lineNum"> 69 </span> : : {</a>
<a name="70"><span class="lineNum"> 70 </span> : : public:</a>
<a name="71"><span class="lineNum"> 71 </span> : : typedef size_t size_type;</a>
<a name="72"><span class="lineNum"> 72 </span> : : typedef ptrdiff_t difference_type;</a>
<a name="73"><span class="lineNum"> 73 </span> : : typedef void* pointer;</a>
<a name="74"><span class="lineNum"> 74 </span> : : typedef const void* const_pointer;</a>
<a name="75"><span class="lineNum"> 75 </span> : : typedef void value_type;</a>
<a name="76"><span class="lineNum"> 76 </span> : : </a>
<a name="77"><span class="lineNum"> 77 </span> : : template&lt;typename _Tp1&gt;</a>
<a name="78"><span class="lineNum"> 78 </span> : : struct rebind</a>
<a name="79"><span class="lineNum"> 79 </span> : : { typedef allocator&lt;_Tp1&gt; other; };</a>
<a name="80"><span class="lineNum"> 80 </span> : : </a>
<a name="81"><span class="lineNum"> 81 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="82"><span class="lineNum"> 82 </span> : : // _GLIBCXX_RESOLVE_LIB_DEFECTS</a>
<a name="83"><span class="lineNum"> 83 </span> : : // 2103. std::allocator propagate_on_container_move_assignment</a>
<a name="84"><span class="lineNum"> 84 </span> : : typedef true_type propagate_on_container_move_assignment;</a>
<a name="85"><span class="lineNum"> 85 </span> : : </a>
<a name="86"><span class="lineNum"> 86 </span> : : typedef true_type is_always_equal;</a>
<a name="87"><span class="lineNum"> 87 </span> : : </a>
<a name="88"><span class="lineNum"> 88 </span> : : template&lt;typename _Up, typename... _Args&gt;</a>
<a name="89"><span class="lineNum"> 89 </span> : : void</a>
<a name="90"><span class="lineNum"> 90 </span> : : construct(_Up* __p, _Args&amp;&amp;... __args)</a>
<a name="91"><span class="lineNum"> 91 </span> : : noexcept(std::is_nothrow_constructible&lt;_Up, _Args...&gt;::value)</a>
<a name="92"><span class="lineNum"> 92 </span> : : { ::new((void *)__p) _Up(std::forward&lt;_Args&gt;(__args)...); }</a>
<a name="93"><span class="lineNum"> 93 </span> : : </a>
<a name="94"><span class="lineNum"> 94 </span> : : template&lt;typename _Up&gt;</a>
<a name="95"><span class="lineNum"> 95 </span> : : void</a>
<a name="96"><span class="lineNum"> 96 </span> : : destroy(_Up* __p)</a>
<a name="97"><span class="lineNum"> 97 </span> : : noexcept(std::is_nothrow_destructible&lt;_Up&gt;::value)</a>
<a name="98"><span class="lineNum"> 98 </span> : : { __p-&gt;~_Up(); }</a>
<a name="99"><span class="lineNum"> 99 </span> : : #endif</a>
<a name="100"><span class="lineNum"> 100 </span> : : };</a>
<a name="101"><span class="lineNum"> 101 </span> : : </a>
<a name="102"><span class="lineNum"> 102 </span> : : /**</a>
<a name="103"><span class="lineNum"> 103 </span> : : * @brief The @a standard allocator, as per [20.4].</a>
<a name="104"><span class="lineNum"> 104 </span> : : *</a>
<a name="105"><span class="lineNum"> 105 </span> : : * See https://gcc.gnu.org/onlinedocs/libstdc++/manual/memory.html#std.util.memory.allocator</a>
<a name="106"><span class="lineNum"> 106 </span> : : * for further details.</a>
<a name="107"><span class="lineNum"> 107 </span> : : *</a>
<a name="108"><span class="lineNum"> 108 </span> : : * @tparam _Tp Type of allocated object.</a>
<a name="109"><span class="lineNum"> 109 </span> : : */</a>
<a name="110"><span class="lineNum"> 110 </span> : : template&lt;typename _Tp&gt;</a>
<a name="111"><span class="lineNum"> 111 </span> : : class allocator : public __allocator_base&lt;_Tp&gt;</a>
<a name="112"><span class="lineNum"> 112 </span> : : {</a>
<a name="113"><span class="lineNum"> 113 </span> : : public:</a>
<a name="114"><span class="lineNum"> 114 </span> : : typedef size_t size_type;</a>
<a name="115"><span class="lineNum"> 115 </span> : : typedef ptrdiff_t difference_type;</a>
<a name="116"><span class="lineNum"> 116 </span> : : typedef _Tp* pointer;</a>
<a name="117"><span class="lineNum"> 117 </span> : : typedef const _Tp* const_pointer;</a>
<a name="118"><span class="lineNum"> 118 </span> : : typedef _Tp&amp; reference;</a>
<a name="119"><span class="lineNum"> 119 </span> : : typedef const _Tp&amp; const_reference;</a>
<a name="120"><span class="lineNum"> 120 </span> : : typedef _Tp value_type;</a>
<a name="121"><span class="lineNum"> 121 </span> : : </a>
<a name="122"><span class="lineNum"> 122 </span> : : template&lt;typename _Tp1&gt;</a>
<a name="123"><span class="lineNum"> 123 </span> : : struct rebind</a>
<a name="124"><span class="lineNum"> 124 </span> : : { typedef allocator&lt;_Tp1&gt; other; };</a>
<a name="125"><span class="lineNum"> 125 </span> : : </a>
<a name="126"><span class="lineNum"> 126 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="127"><span class="lineNum"> 127 </span> : : // _GLIBCXX_RESOLVE_LIB_DEFECTS</a>
<a name="128"><span class="lineNum"> 128 </span> : : // 2103. std::allocator propagate_on_container_move_assignment</a>
<a name="129"><span class="lineNum"> 129 </span> : : typedef true_type propagate_on_container_move_assignment;</a>
<a name="130"><span class="lineNum"> 130 </span> : : </a>
<a name="131"><span class="lineNum"> 131 </span> : : typedef true_type is_always_equal;</a>
<a name="132"><span class="lineNum"> 132 </span> : : #endif</a>
<a name="133"><span class="lineNum"> 133 </span> : : </a>
<a name="134"><span class="lineNum"> 134 </span> : : // _GLIBCXX_RESOLVE_LIB_DEFECTS</a>
<a name="135"><span class="lineNum"> 135 </span> : : // 3035. std::allocator's constructors should be constexpr</a>
<a name="136"><span class="lineNum"> 136 </span> : : _GLIBCXX20_CONSTEXPR</a>
<a name="137"><span class="lineNum"> 137 </span> :<span class="lineCov"> 18 : allocator() _GLIBCXX_NOTHROW { }</span></a>
<a name="138"><span class="lineNum"> 138 </span> : : </a>
<a name="139"><span class="lineNum"> 139 </span> : : _GLIBCXX20_CONSTEXPR</a>
<a name="140"><span class="lineNum"> 140 </span> :<span class="lineCov"> 14 : allocator(const allocator&amp; __a) _GLIBCXX_NOTHROW</span></a>
<a name="141"><span class="lineNum"> 141 </span> :<span class="lineCov"> 14 : : __allocator_base&lt;_Tp&gt;(__a) { }</span></a>
<a name="142"><span class="lineNum"> 142 </span> : : </a>
<a name="143"><span class="lineNum"> 143 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="144"><span class="lineNum"> 144 </span> : : // Avoid implicit deprecation.</a>
<a name="145"><span class="lineNum"> 145 </span> : : allocator&amp; operator=(const allocator&amp;) = default;</a>
<a name="146"><span class="lineNum"> 146 </span> : : #endif</a>
<a name="147"><span class="lineNum"> 147 </span> : : </a>
<a name="148"><span class="lineNum"> 148 </span> : : template&lt;typename _Tp1&gt;</a>
<a name="149"><span class="lineNum"> 149 </span> : : _GLIBCXX20_CONSTEXPR</a>
<a name="150"><span class="lineNum"> 150 </span> :<span class="lineCov"> 25 : allocator(const allocator&lt;_Tp1&gt;&amp;) _GLIBCXX_NOTHROW { }</span></a>
<a name="151"><span class="lineNum"> 151 </span> : : </a>
<a name="152"><span class="lineNum"> 152 </span> :<span class="lineCov"> 57 : ~allocator() _GLIBCXX_NOTHROW { }</span></a>
<a name="153"><span class="lineNum"> 153 </span> : : </a>
<a name="154"><span class="lineNum"> 154 </span> : : friend bool</a>
<a name="155"><span class="lineNum"> 155 </span> : : operator==(const allocator&amp;, const allocator&amp;) _GLIBCXX_NOTHROW</a>
<a name="156"><span class="lineNum"> 156 </span> : : { return true; }</a>
<a name="157"><span class="lineNum"> 157 </span> : : </a>
<a name="158"><span class="lineNum"> 158 </span> : : friend bool</a>
<a name="159"><span class="lineNum"> 159 </span> :<span class="lineNoCov"> 0 : operator!=(const allocator&amp;, const allocator&amp;) _GLIBCXX_NOTHROW</span></a>
<a name="160"><span class="lineNum"> 160 </span> :<span class="lineNoCov"> 0 : { return false; }</span></a>
<a name="161"><span class="lineNum"> 161 </span> : : </a>
<a name="162"><span class="lineNum"> 162 </span> : : // Inherit everything else.</a>
<a name="163"><span class="lineNum"> 163 </span> : : };</a>
<a name="164"><span class="lineNum"> 164 </span> : : </a>
<a name="165"><span class="lineNum"> 165 </span> : : template&lt;typename _T1, typename _T2&gt;</a>
<a name="166"><span class="lineNum"> 166 </span> : : inline bool</a>
<a name="167"><span class="lineNum"> 167 </span> : : operator==(const allocator&lt;_T1&gt;&amp;, const allocator&lt;_T2&gt;&amp;)</a>
<a name="168"><span class="lineNum"> 168 </span> : : _GLIBCXX_NOTHROW</a>
<a name="169"><span class="lineNum"> 169 </span> : : { return true; }</a>
<a name="170"><span class="lineNum"> 170 </span> : : </a>
<a name="171"><span class="lineNum"> 171 </span> : : template&lt;typename _T1, typename _T2&gt;</a>
<a name="172"><span class="lineNum"> 172 </span> : : inline bool</a>
<a name="173"><span class="lineNum"> 173 </span> : : operator!=(const allocator&lt;_T1&gt;&amp;, const allocator&lt;_T2&gt;&amp;)</a>
<a name="174"><span class="lineNum"> 174 </span> : : _GLIBCXX_NOTHROW</a>
<a name="175"><span class="lineNum"> 175 </span> : : { return false; }</a>
<a name="176"><span class="lineNum"> 176 </span> : : </a>
<a name="177"><span class="lineNum"> 177 </span> : : // Invalid allocator&lt;cv T&gt; partial specializations.</a>
<a name="178"><span class="lineNum"> 178 </span> : : // allocator_traits::rebind_alloc can be used to form a valid allocator type.</a>
<a name="179"><span class="lineNum"> 179 </span> : : template&lt;typename _Tp&gt;</a>
<a name="180"><span class="lineNum"> 180 </span> : : class allocator&lt;const _Tp&gt;</a>
<a name="181"><span class="lineNum"> 181 </span> : : {</a>
<a name="182"><span class="lineNum"> 182 </span> : : public:</a>
<a name="183"><span class="lineNum"> 183 </span> : : typedef _Tp value_type;</a>
<a name="184"><span class="lineNum"> 184 </span> : : template&lt;typename _Up&gt; allocator(const allocator&lt;_Up&gt;&amp;) { }</a>
<a name="185"><span class="lineNum"> 185 </span> : : };</a>
<a name="186"><span class="lineNum"> 186 </span> : : </a>
<a name="187"><span class="lineNum"> 187 </span> : : template&lt;typename _Tp&gt;</a>
<a name="188"><span class="lineNum"> 188 </span> : : class allocator&lt;volatile _Tp&gt;</a>
<a name="189"><span class="lineNum"> 189 </span> : : {</a>
<a name="190"><span class="lineNum"> 190 </span> : : public:</a>
<a name="191"><span class="lineNum"> 191 </span> : : typedef _Tp value_type;</a>
<a name="192"><span class="lineNum"> 192 </span> : : template&lt;typename _Up&gt; allocator(const allocator&lt;_Up&gt;&amp;) { }</a>
<a name="193"><span class="lineNum"> 193 </span> : : };</a>
<a name="194"><span class="lineNum"> 194 </span> : : </a>
<a name="195"><span class="lineNum"> 195 </span> : : template&lt;typename _Tp&gt;</a>
<a name="196"><span class="lineNum"> 196 </span> : : class allocator&lt;const volatile _Tp&gt;</a>
<a name="197"><span class="lineNum"> 197 </span> : : {</a>
<a name="198"><span class="lineNum"> 198 </span> : : public:</a>
<a name="199"><span class="lineNum"> 199 </span> : : typedef _Tp value_type;</a>
<a name="200"><span class="lineNum"> 200 </span> : : template&lt;typename _Up&gt; allocator(const allocator&lt;_Up&gt;&amp;) { }</a>
<a name="201"><span class="lineNum"> 201 </span> : : };</a>
<a name="202"><span class="lineNum"> 202 </span> : : </a>
<a name="203"><span class="lineNum"> 203 </span> : : /// @} group allocator</a>
<a name="204"><span class="lineNum"> 204 </span> : : </a>
<a name="205"><span class="lineNum"> 205 </span> : : // Inhibit implicit instantiations for required instantiations,</a>
<a name="206"><span class="lineNum"> 206 </span> : : // which are defined via explicit instantiations elsewhere.</a>
<a name="207"><span class="lineNum"> 207 </span> : : #if _GLIBCXX_EXTERN_TEMPLATE</a>
<a name="208"><span class="lineNum"> 208 </span> : : extern template class allocator&lt;char&gt;;</a>
<a name="209"><span class="lineNum"> 209 </span> : : extern template class allocator&lt;wchar_t&gt;;</a>
<a name="210"><span class="lineNum"> 210 </span> : : #endif</a>
<a name="211"><span class="lineNum"> 211 </span> : : </a>
<a name="212"><span class="lineNum"> 212 </span> : : // Undefine.</a>
<a name="213"><span class="lineNum"> 213 </span> : : #undef __allocator_base</a>
<a name="214"><span class="lineNum"> 214 </span> : : </a>
<a name="215"><span class="lineNum"> 215 </span> : : // To implement Option 3 of DR 431.</a>
<a name="216"><span class="lineNum"> 216 </span> : : template&lt;typename _Alloc, bool = __is_empty(_Alloc)&gt;</a>
<a name="217"><span class="lineNum"> 217 </span> : : struct __alloc_swap</a>
<a name="218"><span class="lineNum"> 218 </span> : : { static void _S_do_it(_Alloc&amp;, _Alloc&amp;) _GLIBCXX_NOEXCEPT { } };</a>
<a name="219"><span class="lineNum"> 219 </span> : : </a>
<a name="220"><span class="lineNum"> 220 </span> : : template&lt;typename _Alloc&gt;</a>
<a name="221"><span class="lineNum"> 221 </span> : : struct __alloc_swap&lt;_Alloc, false&gt;</a>
<a name="222"><span class="lineNum"> 222 </span> : : {</a>
<a name="223"><span class="lineNum"> 223 </span> : : static void</a>
<a name="224"><span class="lineNum"> 224 </span> : : _S_do_it(_Alloc&amp; __one, _Alloc&amp; __two) _GLIBCXX_NOEXCEPT</a>
<a name="225"><span class="lineNum"> 225 </span> : : {</a>
<a name="226"><span class="lineNum"> 226 </span> : : // Precondition: swappable allocators.</a>
<a name="227"><span class="lineNum"> 227 </span> : : if (__one != __two)</a>
<a name="228"><span class="lineNum"> 228 </span> : : swap(__one, __two);</a>
<a name="229"><span class="lineNum"> 229 </span> : : }</a>
<a name="230"><span class="lineNum"> 230 </span> : : };</a>
<a name="231"><span class="lineNum"> 231 </span> : : </a>
<a name="232"><span class="lineNum"> 232 </span> : : // Optimize for stateless allocators.</a>
<a name="233"><span class="lineNum"> 233 </span> : : template&lt;typename _Alloc, bool = __is_empty(_Alloc)&gt;</a>
<a name="234"><span class="lineNum"> 234 </span> : : struct __alloc_neq</a>
<a name="235"><span class="lineNum"> 235 </span> : : {</a>
<a name="236"><span class="lineNum"> 236 </span> : : static bool</a>
<a name="237"><span class="lineNum"> 237 </span> :<span class="lineCov"> 11 : _S_do_it(const _Alloc&amp;, const _Alloc&amp;)</span></a>
<a name="238"><span class="lineNum"> 238 </span> :<span class="lineCov"> 11 : { return false; }</span></a>
<a name="239"><span class="lineNum"> 239 </span> : : };</a>
<a name="240"><span class="lineNum"> 240 </span> : : </a>
<a name="241"><span class="lineNum"> 241 </span> : : template&lt;typename _Alloc&gt;</a>
<a name="242"><span class="lineNum"> 242 </span> : : struct __alloc_neq&lt;_Alloc, false&gt;</a>
<a name="243"><span class="lineNum"> 243 </span> : : {</a>
<a name="244"><span class="lineNum"> 244 </span> : : static bool</a>
<a name="245"><span class="lineNum"> 245 </span> : : _S_do_it(const _Alloc&amp; __one, const _Alloc&amp; __two)</a>
<a name="246"><span class="lineNum"> 246 </span> : : { return __one != __two; }</a>
<a name="247"><span class="lineNum"> 247 </span> : : };</a>
<a name="248"><span class="lineNum"> 248 </span> : : </a>
<a name="249"><span class="lineNum"> 249 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="250"><span class="lineNum"> 250 </span> : : template&lt;typename _Tp, bool</a>
<a name="251"><span class="lineNum"> 251 </span> : : = __or_&lt;is_copy_constructible&lt;typename _Tp::value_type&gt;,</a>
<a name="252"><span class="lineNum"> 252 </span> : : is_nothrow_move_constructible&lt;typename _Tp::value_type&gt;&gt;::value&gt;</a>
<a name="253"><span class="lineNum"> 253 </span> : : struct __shrink_to_fit_aux</a>
<a name="254"><span class="lineNum"> 254 </span> : : { static bool _S_do_it(_Tp&amp;) noexcept { return false; } };</a>
<a name="255"><span class="lineNum"> 255 </span> : : </a>
<a name="256"><span class="lineNum"> 256 </span> : : template&lt;typename _Tp&gt;</a>
<a name="257"><span class="lineNum"> 257 </span> : : struct __shrink_to_fit_aux&lt;_Tp, true&gt;</a>
<a name="258"><span class="lineNum"> 258 </span> : : {</a>
<a name="259"><span class="lineNum"> 259 </span> : : static bool</a>
<a name="260"><span class="lineNum"> 260 </span> : : _S_do_it(_Tp&amp; __c) noexcept</a>
<a name="261"><span class="lineNum"> 261 </span> : : {</a>
<a name="262"><span class="lineNum"> 262 </span> : : #if __cpp_exceptions</a>
<a name="263"><span class="lineNum"> 263 </span> : : try</a>
<a name="264"><span class="lineNum"> 264 </span> : : {</a>
<a name="265"><span class="lineNum"> 265 </span> : : _Tp(__make_move_if_noexcept_iterator(__c.begin()),</a>
<a name="266"><span class="lineNum"> 266 </span> : : __make_move_if_noexcept_iterator(__c.end()),</a>
<a name="267"><span class="lineNum"> 267 </span> : : __c.get_allocator()).swap(__c);</a>
<a name="268"><span class="lineNum"> 268 </span> : : return true;</a>
<a name="269"><span class="lineNum"> 269 </span> : : }</a>
<a name="270"><span class="lineNum"> 270 </span> : : catch(...)</a>
<a name="271"><span class="lineNum"> 271 </span> : : { return false; }</a>
<a name="272"><span class="lineNum"> 272 </span> : : #else</a>
<a name="273"><span class="lineNum"> 273 </span> : : return false;</a>
<a name="274"><span class="lineNum"> 274 </span> : : #endif</a>
<a name="275"><span class="lineNum"> 275 </span> : : }</a>
<a name="276"><span class="lineNum"> 276 </span> : : };</a>
<a name="277"><span class="lineNum"> 277 </span> : : #endif</a>
<a name="278"><span class="lineNum"> 278 </span> : : </a>
<a name="279"><span class="lineNum"> 279 </span> : : _GLIBCXX_END_NAMESPACE_VERSION</a>
<a name="280"><span class="lineNum"> 280 </span> : : } // namespace std</a>
<a name="281"><span class="lineNum"> 281 </span> : : </a>
<a name="282"><span class="lineNum"> 282 </span> : : #endif</a>
</pre>
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