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SQA-Homework/gcov & lcov/output/9/new.gcov.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>LCOV - test.info - 9/new</title>
<link rel="stylesheet" type="text/css" href="../gcov.css">
</head>
<body>
<table width="100%" border=0 cellspacing=0 cellpadding=0>
<tr><td class="title">LCOV - code coverage report</td></tr>
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
<tr>
<td width="100%">
<table cellpadding=1 border=0 width="100%">
<tr>
<td width="10%" class="headerItem">Current view:</td>
<td width="35%" class="headerValue"><a href="../index.html">top level</a> - <a href="index.html">9</a> - new<span style="font-size: 80%;"> (source / <a href="new.func-sort-c.html">functions</a>)</span></td>
<td width="5%"></td>
<td width="15%"></td>
<td width="10%" class="headerCovTableHead">Hit</td>
<td width="10%" class="headerCovTableHead">Total</td>
<td width="15%" class="headerCovTableHead">Coverage</td>
</tr>
<tr>
<td class="headerItem">Test:</td>
<td class="headerValue">test.info</td>
<td></td>
<td class="headerItem">Lines:</td>
<td class="headerCovTableEntry">2</td>
<td class="headerCovTableEntry">2</td>
<td class="headerCovTableEntryHi">100.0 %</td>
</tr>
<tr>
<td class="headerItem">Date:</td>
<td class="headerValue">2022-06-07 00:30:42</td>
<td></td>
<td class="headerItem">Functions:</td>
<td class="headerCovTableEntry">1</td>
<td class="headerCovTableEntry">1</td>
<td class="headerCovTableEntryHi">100.0 %</td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td class="headerItem">Branches:</td>
<td class="headerCovTableEntry">0</td>
<td class="headerCovTableEntry">0</td>
<td class="headerCovTableEntryHi">-</td>
</tr>
<tr><td><img src="../glass.png" width=3 height=3 alt=""></td></tr>
</table>
</td>
</tr>
<tr><td class="ruler"><img src="../glass.png" width=3 height=3 alt=""></td></tr>
</table>
<table cellpadding=0 cellspacing=0 border=0>
<tr>
<td><br></td>
</tr>
<tr>
<td>
<pre class="sourceHeading"> Branch data Line data Source code</pre>
<pre class="source">
<a name="1"><span class="lineNum"> 1 </span> : : // The -*- C++ -*- dynamic memory management header.</a>
<a name="2"><span class="lineNum"> 2 </span> : : </a>
<a name="3"><span class="lineNum"> 3 </span> : : // Copyright (C) 1994-2019 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 GCC.</a>
<a name="6"><span class="lineNum"> 6 </span> : : //</a>
<a name="7"><span class="lineNum"> 7 </span> : : // GCC is free software; you can redistribute it and/or modify</a>
<a name="8"><span class="lineNum"> 8 </span> : : // it under the terms of the GNU General Public License as published by</a>
<a name="9"><span class="lineNum"> 9 </span> : : // the Free Software Foundation; either version 3, or (at your option)</a>
<a name="10"><span class="lineNum"> 10 </span> : : // any later version.</a>
<a name="11"><span class="lineNum"> 11 </span> : : // </a>
<a name="12"><span class="lineNum"> 12 </span> : : // GCC is distributed in the hope that it will be useful,</a>
<a name="13"><span class="lineNum"> 13 </span> : : // but WITHOUT ANY WARRANTY; without even the implied warranty of</a>
<a name="14"><span class="lineNum"> 14 </span> : : // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</a>
<a name="15"><span class="lineNum"> 15 </span> : : // GNU General Public License for more details.</a>
<a name="16"><span class="lineNum"> 16 </span> : : // </a>
<a name="17"><span class="lineNum"> 17 </span> : : // Under Section 7 of GPL version 3, you are granted additional</a>
<a name="18"><span class="lineNum"> 18 </span> : : // permissions described in the GCC Runtime Library Exception, version</a>
<a name="19"><span class="lineNum"> 19 </span> : : // 3.1, as published by the Free Software Foundation.</a>
<a name="20"><span class="lineNum"> 20 </span> : : </a>
<a name="21"><span class="lineNum"> 21 </span> : : // You should have received a copy of the GNU General Public License and</a>
<a name="22"><span class="lineNum"> 22 </span> : : // a copy of the GCC Runtime Library Exception along with this program;</a>
<a name="23"><span class="lineNum"> 23 </span> : : // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</a>
<a name="24"><span class="lineNum"> 24 </span> : : // &lt;http://www.gnu.org/licenses/&gt;.</a>
<a name="25"><span class="lineNum"> 25 </span> : : </a>
<a name="26"><span class="lineNum"> 26 </span> : : /** @file new</a>
<a name="27"><span class="lineNum"> 27 </span> : : * This is a Standard C++ Library header.</a>
<a name="28"><span class="lineNum"> 28 </span> : : *</a>
<a name="29"><span class="lineNum"> 29 </span> : : * The header @c new defines several functions to manage dynamic memory and</a>
<a name="30"><span class="lineNum"> 30 </span> : : * handling memory allocation errors; see</a>
<a name="31"><span class="lineNum"> 31 </span> : : * http://gcc.gnu.org/onlinedocs/libstdc++/18_support/howto.html#4 for more.</a>
<a name="32"><span class="lineNum"> 32 </span> : : */</a>
<a name="33"><span class="lineNum"> 33 </span> : : </a>
<a name="34"><span class="lineNum"> 34 </span> : : #ifndef _NEW</a>
<a name="35"><span class="lineNum"> 35 </span> : : #define _NEW</a>
<a name="36"><span class="lineNum"> 36 </span> : : </a>
<a name="37"><span class="lineNum"> 37 </span> : : #pragma GCC system_header</a>
<a name="38"><span class="lineNum"> 38 </span> : : </a>
<a name="39"><span class="lineNum"> 39 </span> : : #include &lt;bits/c++config.h&gt;</a>
<a name="40"><span class="lineNum"> 40 </span> : : #include &lt;exception&gt;</a>
<a name="41"><span class="lineNum"> 41 </span> : : </a>
<a name="42"><span class="lineNum"> 42 </span> : : #pragma GCC visibility push(default)</a>
<a name="43"><span class="lineNum"> 43 </span> : : </a>
<a name="44"><span class="lineNum"> 44 </span> : : extern &quot;C++&quot; {</a>
<a name="45"><span class="lineNum"> 45 </span> : : </a>
<a name="46"><span class="lineNum"> 46 </span> : : namespace std </a>
<a name="47"><span class="lineNum"> 47 </span> : : {</a>
<a name="48"><span class="lineNum"> 48 </span> : : /**</a>
<a name="49"><span class="lineNum"> 49 </span> : : * @brief Exception possibly thrown by @c new.</a>
<a name="50"><span class="lineNum"> 50 </span> : : * @ingroup exceptions</a>
<a name="51"><span class="lineNum"> 51 </span> : : *</a>
<a name="52"><span class="lineNum"> 52 </span> : : * @c bad_alloc (or classes derived from it) is used to report allocation</a>
<a name="53"><span class="lineNum"> 53 </span> : : * errors from the throwing forms of @c new. */</a>
<a name="54"><span class="lineNum"> 54 </span> : : class bad_alloc : public exception </a>
<a name="55"><span class="lineNum"> 55 </span> : : {</a>
<a name="56"><span class="lineNum"> 56 </span> : : public:</a>
<a name="57"><span class="lineNum"> 57 </span> : : bad_alloc() throw() { }</a>
<a name="58"><span class="lineNum"> 58 </span> : : </a>
<a name="59"><span class="lineNum"> 59 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="60"><span class="lineNum"> 60 </span> : : bad_alloc(const bad_alloc&amp;) = default;</a>
<a name="61"><span class="lineNum"> 61 </span> : : bad_alloc&amp; operator=(const bad_alloc&amp;) = default;</a>
<a name="62"><span class="lineNum"> 62 </span> : : #endif</a>
<a name="63"><span class="lineNum"> 63 </span> : : </a>
<a name="64"><span class="lineNum"> 64 </span> : : // This declaration is not useless:</a>
<a name="65"><span class="lineNum"> 65 </span> : : // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118</a>
<a name="66"><span class="lineNum"> 66 </span> : : virtual ~bad_alloc() throw();</a>
<a name="67"><span class="lineNum"> 67 </span> : : </a>
<a name="68"><span class="lineNum"> 68 </span> : : // See comment in eh_exception.cc.</a>
<a name="69"><span class="lineNum"> 69 </span> : : virtual const char* what() const throw();</a>
<a name="70"><span class="lineNum"> 70 </span> : : };</a>
<a name="71"><span class="lineNum"> 71 </span> : : </a>
<a name="72"><span class="lineNum"> 72 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="73"><span class="lineNum"> 73 </span> : : class bad_array_new_length : public bad_alloc</a>
<a name="74"><span class="lineNum"> 74 </span> : : {</a>
<a name="75"><span class="lineNum"> 75 </span> : : public:</a>
<a name="76"><span class="lineNum"> 76 </span> : : bad_array_new_length() throw() { }</a>
<a name="77"><span class="lineNum"> 77 </span> : : </a>
<a name="78"><span class="lineNum"> 78 </span> : : // This declaration is not useless:</a>
<a name="79"><span class="lineNum"> 79 </span> : : // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118</a>
<a name="80"><span class="lineNum"> 80 </span> : : virtual ~bad_array_new_length() throw();</a>
<a name="81"><span class="lineNum"> 81 </span> : : </a>
<a name="82"><span class="lineNum"> 82 </span> : : // See comment in eh_exception.cc.</a>
<a name="83"><span class="lineNum"> 83 </span> : : virtual const char* what() const throw();</a>
<a name="84"><span class="lineNum"> 84 </span> : : };</a>
<a name="85"><span class="lineNum"> 85 </span> : : #endif</a>
<a name="86"><span class="lineNum"> 86 </span> : : </a>
<a name="87"><span class="lineNum"> 87 </span> : : #if __cpp_aligned_new</a>
<a name="88"><span class="lineNum"> 88 </span> : : enum class align_val_t: size_t {};</a>
<a name="89"><span class="lineNum"> 89 </span> : : #endif</a>
<a name="90"><span class="lineNum"> 90 </span> : : </a>
<a name="91"><span class="lineNum"> 91 </span> : : struct nothrow_t</a>
<a name="92"><span class="lineNum"> 92 </span> : : {</a>
<a name="93"><span class="lineNum"> 93 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="94"><span class="lineNum"> 94 </span> : : explicit nothrow_t() = default;</a>
<a name="95"><span class="lineNum"> 95 </span> : : #endif</a>
<a name="96"><span class="lineNum"> 96 </span> : : };</a>
<a name="97"><span class="lineNum"> 97 </span> : : </a>
<a name="98"><span class="lineNum"> 98 </span> : : extern const nothrow_t nothrow;</a>
<a name="99"><span class="lineNum"> 99 </span> : : </a>
<a name="100"><span class="lineNum"> 100 </span> : : /** If you write your own error handler to be called by @c new, it must</a>
<a name="101"><span class="lineNum"> 101 </span> : : * be of this type. */</a>
<a name="102"><span class="lineNum"> 102 </span> : : typedef void (*new_handler)();</a>
<a name="103"><span class="lineNum"> 103 </span> : : </a>
<a name="104"><span class="lineNum"> 104 </span> : : /// Takes a replacement handler as the argument, returns the</a>
<a name="105"><span class="lineNum"> 105 </span> : : /// previous handler.</a>
<a name="106"><span class="lineNum"> 106 </span> : : new_handler set_new_handler(new_handler) throw();</a>
<a name="107"><span class="lineNum"> 107 </span> : : </a>
<a name="108"><span class="lineNum"> 108 </span> : : #if __cplusplus &gt;= 201103L</a>
<a name="109"><span class="lineNum"> 109 </span> : : /// Return the current new handler.</a>
<a name="110"><span class="lineNum"> 110 </span> : : new_handler get_new_handler() noexcept;</a>
<a name="111"><span class="lineNum"> 111 </span> : : #endif</a>
<a name="112"><span class="lineNum"> 112 </span> : : } // namespace std</a>
<a name="113"><span class="lineNum"> 113 </span> : : </a>
<a name="114"><span class="lineNum"> 114 </span> : : //@{</a>
<a name="115"><span class="lineNum"> 115 </span> : : /** These are replaceable signatures:</a>
<a name="116"><span class="lineNum"> 116 </span> : : * - normal single new and delete (no arguments, throw @c bad_alloc on error)</a>
<a name="117"><span class="lineNum"> 117 </span> : : * - normal array new and delete (same)</a>
<a name="118"><span class="lineNum"> 118 </span> : : * - @c nothrow single new and delete (take a @c nothrow argument, return</a>
<a name="119"><span class="lineNum"> 119 </span> : : * @c NULL on error)</a>
<a name="120"><span class="lineNum"> 120 </span> : : * - @c nothrow array new and delete (same)</a>
<a name="121"><span class="lineNum"> 121 </span> : : *</a>
<a name="122"><span class="lineNum"> 122 </span> : : * Placement new and delete signatures (take a memory address argument,</a>
<a name="123"><span class="lineNum"> 123 </span> : : * does nothing) may not be replaced by a user's program.</a>
<a name="124"><span class="lineNum"> 124 </span> : : */</a>
<a name="125"><span class="lineNum"> 125 </span> : : _GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)</a>
<a name="126"><span class="lineNum"> 126 </span> : : __attribute__((__externally_visible__));</a>
<a name="127"><span class="lineNum"> 127 </span> : : _GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)</a>
<a name="128"><span class="lineNum"> 128 </span> : : __attribute__((__externally_visible__));</a>
<a name="129"><span class="lineNum"> 129 </span> : : void operator delete(void*) _GLIBCXX_USE_NOEXCEPT</a>
<a name="130"><span class="lineNum"> 130 </span> : : __attribute__((__externally_visible__));</a>
<a name="131"><span class="lineNum"> 131 </span> : : void operator delete[](void*) _GLIBCXX_USE_NOEXCEPT</a>
<a name="132"><span class="lineNum"> 132 </span> : : __attribute__((__externally_visible__));</a>
<a name="133"><span class="lineNum"> 133 </span> : : #if __cpp_sized_deallocation</a>
<a name="134"><span class="lineNum"> 134 </span> : : void operator delete(void*, std::size_t) _GLIBCXX_USE_NOEXCEPT</a>
<a name="135"><span class="lineNum"> 135 </span> : : __attribute__((__externally_visible__));</a>
<a name="136"><span class="lineNum"> 136 </span> : : void operator delete[](void*, std::size_t) _GLIBCXX_USE_NOEXCEPT</a>
<a name="137"><span class="lineNum"> 137 </span> : : __attribute__((__externally_visible__));</a>
<a name="138"><span class="lineNum"> 138 </span> : : #endif</a>
<a name="139"><span class="lineNum"> 139 </span> : : _GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&amp;) _GLIBCXX_USE_NOEXCEPT</a>
<a name="140"><span class="lineNum"> 140 </span> : : __attribute__((__externally_visible__, __malloc__));</a>
<a name="141"><span class="lineNum"> 141 </span> : : _GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&amp;) _GLIBCXX_USE_NOEXCEPT</a>
<a name="142"><span class="lineNum"> 142 </span> : : __attribute__((__externally_visible__, __malloc__));</a>
<a name="143"><span class="lineNum"> 143 </span> : : void operator delete(void*, const std::nothrow_t&amp;) _GLIBCXX_USE_NOEXCEPT</a>
<a name="144"><span class="lineNum"> 144 </span> : : __attribute__((__externally_visible__));</a>
<a name="145"><span class="lineNum"> 145 </span> : : void operator delete[](void*, const std::nothrow_t&amp;) _GLIBCXX_USE_NOEXCEPT</a>
<a name="146"><span class="lineNum"> 146 </span> : : __attribute__((__externally_visible__));</a>
<a name="147"><span class="lineNum"> 147 </span> : : #if __cpp_aligned_new</a>
<a name="148"><span class="lineNum"> 148 </span> : : _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t)</a>
<a name="149"><span class="lineNum"> 149 </span> : : __attribute__((__externally_visible__));</a>
<a name="150"><span class="lineNum"> 150 </span> : : _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&amp;)</a>
<a name="151"><span class="lineNum"> 151 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __malloc__));</a>
<a name="152"><span class="lineNum"> 152 </span> : : void operator delete(void*, std::align_val_t)</a>
<a name="153"><span class="lineNum"> 153 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));</a>
<a name="154"><span class="lineNum"> 154 </span> : : void operator delete(void*, std::align_val_t, const std::nothrow_t&amp;)</a>
<a name="155"><span class="lineNum"> 155 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));</a>
<a name="156"><span class="lineNum"> 156 </span> : : _GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t)</a>
<a name="157"><span class="lineNum"> 157 </span> : : __attribute__((__externally_visible__));</a>
<a name="158"><span class="lineNum"> 158 </span> : : _GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t, const std::nothrow_t&amp;)</a>
<a name="159"><span class="lineNum"> 159 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__, __malloc__));</a>
<a name="160"><span class="lineNum"> 160 </span> : : void operator delete[](void*, std::align_val_t)</a>
<a name="161"><span class="lineNum"> 161 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));</a>
<a name="162"><span class="lineNum"> 162 </span> : : void operator delete[](void*, std::align_val_t, const std::nothrow_t&amp;)</a>
<a name="163"><span class="lineNum"> 163 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));</a>
<a name="164"><span class="lineNum"> 164 </span> : : #if __cpp_sized_deallocation</a>
<a name="165"><span class="lineNum"> 165 </span> : : void operator delete(void*, std::size_t, std::align_val_t)</a>
<a name="166"><span class="lineNum"> 166 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));</a>
<a name="167"><span class="lineNum"> 167 </span> : : void operator delete[](void*, std::size_t, std::align_val_t)</a>
<a name="168"><span class="lineNum"> 168 </span> : : _GLIBCXX_USE_NOEXCEPT __attribute__((__externally_visible__));</a>
<a name="169"><span class="lineNum"> 169 </span> : : #endif // __cpp_sized_deallocation</a>
<a name="170"><span class="lineNum"> 170 </span> : : #endif // __cpp_aligned_new</a>
<a name="171"><span class="lineNum"> 171 </span> : : </a>
<a name="172"><span class="lineNum"> 172 </span> : : // Default placement versions of operator new.</a>
<a name="173"><span class="lineNum"> 173 </span> :<span class="lineCov"> 240 : _GLIBCXX_NODISCARD inline void* operator new(std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT</span></a>
<a name="174"><span class="lineNum"> 174 </span> :<span class="lineCov"> 240 : { return __p; }</span></a>
<a name="175"><span class="lineNum"> 175 </span> : : _GLIBCXX_NODISCARD inline void* operator new[](std::size_t, void* __p) _GLIBCXX_USE_NOEXCEPT</a>
<a name="176"><span class="lineNum"> 176 </span> : : { return __p; }</a>
<a name="177"><span class="lineNum"> 177 </span> : : </a>
<a name="178"><span class="lineNum"> 178 </span> : : // Default placement versions of operator delete.</a>
<a name="179"><span class="lineNum"> 179 </span> : : inline void operator delete (void*, void*) _GLIBCXX_USE_NOEXCEPT { }</a>
<a name="180"><span class="lineNum"> 180 </span> : : inline void operator delete[](void*, void*) _GLIBCXX_USE_NOEXCEPT { }</a>
<a name="181"><span class="lineNum"> 181 </span> : : //@}</a>
<a name="182"><span class="lineNum"> 182 </span> : : } // extern &quot;C++&quot;</a>
<a name="183"><span class="lineNum"> 183 </span> : : </a>
<a name="184"><span class="lineNum"> 184 </span> : : #if __cplusplus &gt;= 201703L</a>
<a name="185"><span class="lineNum"> 185 </span> : : #ifdef _GLIBCXX_HAVE_BUILTIN_LAUNDER</a>
<a name="186"><span class="lineNum"> 186 </span> : : namespace std</a>
<a name="187"><span class="lineNum"> 187 </span> : : {</a>
<a name="188"><span class="lineNum"> 188 </span> : : #define __cpp_lib_launder 201606</a>
<a name="189"><span class="lineNum"> 189 </span> : : /// Pointer optimization barrier [ptr.launder]</a>
<a name="190"><span class="lineNum"> 190 </span> : : template&lt;typename _Tp&gt;</a>
<a name="191"><span class="lineNum"> 191 </span> : : [[nodiscard]] constexpr _Tp*</a>
<a name="192"><span class="lineNum"> 192 </span> : : launder(_Tp* __p) noexcept</a>
<a name="193"><span class="lineNum"> 193 </span> : : { return __builtin_launder(__p); }</a>
<a name="194"><span class="lineNum"> 194 </span> : : </a>
<a name="195"><span class="lineNum"> 195 </span> : : // The program is ill-formed if T is a function type or</a>
<a name="196"><span class="lineNum"> 196 </span> : : // (possibly cv-qualified) void.</a>
<a name="197"><span class="lineNum"> 197 </span> : : </a>
<a name="198"><span class="lineNum"> 198 </span> : : template&lt;typename _Ret, typename... _Args _GLIBCXX_NOEXCEPT_PARM&gt;</a>
<a name="199"><span class="lineNum"> 199 </span> : : void launder(_Ret (*)(_Args...) _GLIBCXX_NOEXCEPT_QUAL) = delete;</a>
<a name="200"><span class="lineNum"> 200 </span> : : template&lt;typename _Ret, typename... _Args _GLIBCXX_NOEXCEPT_PARM&gt;</a>
<a name="201"><span class="lineNum"> 201 </span> : : void launder(_Ret (*)(_Args......) _GLIBCXX_NOEXCEPT_QUAL) = delete;</a>
<a name="202"><span class="lineNum"> 202 </span> : : </a>
<a name="203"><span class="lineNum"> 203 </span> : : void launder(void*) = delete;</a>
<a name="204"><span class="lineNum"> 204 </span> : : void launder(const void*) = delete;</a>
<a name="205"><span class="lineNum"> 205 </span> : : void launder(volatile void*) = delete;</a>
<a name="206"><span class="lineNum"> 206 </span> : : void launder(const volatile void*) = delete;</a>
<a name="207"><span class="lineNum"> 207 </span> : : }</a>
<a name="208"><span class="lineNum"> 208 </span> : : #endif // _GLIBCXX_HAVE_BUILTIN_LAUNDER</a>
<a name="209"><span class="lineNum"> 209 </span> : : #endif // C++17</a>
<a name="210"><span class="lineNum"> 210 </span> : : </a>
<a name="211"><span class="lineNum"> 211 </span> : : #if __cplusplus &gt; 201703L</a>
<a name="212"><span class="lineNum"> 212 </span> : : namespace std</a>
<a name="213"><span class="lineNum"> 213 </span> : : {</a>
<a name="214"><span class="lineNum"> 214 </span> : : struct destroying_delete_t</a>
<a name="215"><span class="lineNum"> 215 </span> : : {</a>
<a name="216"><span class="lineNum"> 216 </span> : : explicit destroying_delete_t() = default;</a>
<a name="217"><span class="lineNum"> 217 </span> : : };</a>
<a name="218"><span class="lineNum"> 218 </span> : : inline constexpr destroying_delete_t destroying_delete{};</a>
<a name="219"><span class="lineNum"> 219 </span> : : }</a>
<a name="220"><span class="lineNum"> 220 </span> : : // Only define the feature test macro if the compiler supports the feature:</a>
<a name="221"><span class="lineNum"> 221 </span> : : #if __cpp_impl_destroying_delete</a>
<a name="222"><span class="lineNum"> 222 </span> : : # define __cpp_lib_destroying_delete 201806L</a>
<a name="223"><span class="lineNum"> 223 </span> : : #endif</a>
<a name="224"><span class="lineNum"> 224 </span> : : #endif // C++20</a>
<a name="225"><span class="lineNum"> 225 </span> : : </a>
<a name="226"><span class="lineNum"> 226 </span> : : #pragma GCC visibility pop</a>
<a name="227"><span class="lineNum"> 227 </span> : : </a>
<a name="228"><span class="lineNum"> 228 </span> : : #endif</a>
</pre>
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