update automatically

Author: cpprefjp-autoupdate

reference/bitset/bitset/reference.html

@@ -200,12 +200,12 @@
 
     <p class="text-right"><small>
       最終更新日時(UTC):
-      <span itemprop="datePublished" content="2025-06-11T14:18:15">
-        2025年06月11日 14時18分15秒
+      <span itemprop="datePublished" content="2026-06-10T07:27:25">
+        2026年06月10日 07時27分25秒
       </span>
       <br/>
       <span itemprop="author" itemscope itemtype="http://schema.org/Person">
-        <span itemprop="name">Raclamusi</span>
+        <span itemprop="name">Akira Takahashi</span>
       </span>
       が更新
     </small></p>
@@ -236,9 +236,14 @@
 <span class="w">      </span><span class="n"><i>CONSTEXPR</i></span><span class="w"> </span><span class="o">~</span><span class="n">reference</span><span class="p">()</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span>
 <span class="w">      </span><span class="n"><i>CONSTEXPR</i></span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="w"> </span><span class="k">operator</span><span class="o">=</span><span class="p">(</span><span class="kt">bool</span><span class="w"> </span><span class="n">x</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span>
 <span class="w">      </span><span class="n"><i>CONSTEXPR</i></span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="w"> </span><span class="k">operator</span><span class="o">=</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span>
+<span class="w">      </span><span class="k">constexpr</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="w"> </span><span class="k">operator</span><span class="o">=</span><span class="p">(</span><span class="kt">bool</span><span class="w"> </span><span class="n">x</span><span class="p">)</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w">   </span><span class="c1">// C++26</span>
 <span class="w">      </span><span class="n"><i>CONSTEXPR</i></span><span class="w"> </span><span class="kt">bool</span><span class="w"> </span><span class="k">operator</span><span class="o">~</span><span class="p">()</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span>
 <span class="w">      </span><span class="n"><i>CONSTEXPR</i></span><span class="w"> </span><span class="k">operator</span><span class="w"> </span><span class="kt">bool</span><span class="p">()</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span>
 <span class="w">      </span><span class="n"><i>CONSTEXPR</i></span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="w"> </span><span class="n">flip</span><span class="p">()</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span>
+
+<span class="w">      </span><span class="k">friend</span><span class="w"> </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">reference</span><span class="w"> </span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">reference</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w">  </span><span class="c1">// C++26</span>
+<span class="w">      </span><span class="k">friend</span><span class="w"> </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">reference</span><span class="w"> </span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="kt">bool</span><span class="o">&amp;</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w">      </span><span class="c1">// C++26</span>
+<span class="w">      </span><span class="k">friend</span><span class="w"> </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="kt">bool</span><span class="o">&amp;</span><span class="w"> </span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">reference</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w">      </span><span class="c1">// C++26</span>
 <span class="w">    </span><span class="p">};</span>
 <span class="w">  </span><span class="p">};</span>
 <span class="p">}</span>
@@ -247,6 +252,7 @@
 <h2>概要</h2>
 <p><code>bitset::reference</code>は、<code>bitset</code>の各ビットにアクセスするためのプロキシクラスである。<code>bitset::<a href="op_at.html">operator[]</a></code>で返されるビット情報を取得、書き換えるためにある。</p>
 <p>C++23から<code>bitset::reference</code>全メンバ関数への<code>constexpr</code>指定が行われる。</p>
+<p>C++26から、<code>const</code>修飾された<code>*this</code>に対する<code>bool</code>からの代入演算子と、<a class="cpprefjp-defined-word" data-desc="実引数依存の名前探索 (Argument Dependent Lookup)。引数の型が所属する名前空間の関数を探索する言語機能">ADL</a>で見つかる非メンバ<code>swap</code>関数が追加され、<code><a href="../../vector/vector.html">vector&lt;bool&gt;::reference</a></code>とインタフェースが統一された。</p>
 <h3>メンバ関数</h3>
 <table border="1" bordercolor="#888" style="border-collapse:collapse">
 <thead>
@@ -268,6 +274,11 @@ <h3>メンバ関数</h3>
 <td></td>
 </tr>
 <tr>
+<td><code>operator=(bool x) const</code></td>
+<td><code>const</code>な<code>*this</code>のビット情報を書き換える</td>
+<td>C++26</td>
+</tr>
+<tr>
 <td><code>operator~()</code></td>
 <td>反転したビットを取得する</td>
 <td></td>
@@ -284,6 +295,33 @@ <h3>メンバ関数</h3>
 </tr>
 </tbody>
 </table>
+<h3>非メンバ関数</h3>
+<table border="1" bordercolor="#888" style="border-collapse:collapse">
+<thead>
+<tr>
+<th>名前</th>
+<th>説明</th>
+<th>対応バージョン</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td><code>swap(reference x, reference y)</code></td>
+<td>2つの参照先のビットを入れ替える</td>
+<td>C++26</td>
+</tr>
+<tr>
+<td><code>swap(reference x, bool&amp; y)</code></td>
+<td>参照先のビットと<code>bool</code>を入れ替える</td>
+<td>C++26</td>
+</tr>
+<tr>
+<td><code>swap(bool&amp; x, reference y)</code></td>
+<td><code>bool</code>と参照先のビットを入れ替える</td>
+<td>C++26</td>
+</tr>
+</tbody>
+</table>
 <h2>例</h2>
 <p><div class="yata" id="a333050fc6cd49b6ef14e8cb4597950e582cef31"><div class="codehilite"><pre><span></span><code><span class="cp">#include <a href="../../cassert.html">&lt;cassert&gt;</a></span>
 <span class="cp">#include <a href="../../bitset.html">&lt;bitset&gt;</a></span>
@@ -314,6 +352,10 @@ <h3>出力</h3>
 <h2>参照</h2>
 <ul>
 <li><a href="https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2417r2.pdf" target="_blank">P2417R2 A more constexpr bitset</a></li>
+<li><a href="https://open-std.org/jtc1/sc22/wg21/docs/papers/2025/p3612r1.html" target="_blank">P3612R1 Harmonize proxy-reference operations (LWG 3638 and 4187)</a><ul>
+<li>C++26で、<code>const</code>修飾された<code>*this</code>に対する<code>bool</code>からの代入演算子と、<a class="cpprefjp-defined-word" data-desc="実引数依存の名前探索 (Argument Dependent Lookup)。引数の型が所属する名前空間の関数を探索する言語機能">ADL</a>で見つかる非メンバ<code>swap</code>関数が追加された</li>
+</ul>
+</li>
 </ul></div>
 
       </div>

reference/chrono/make24.html

@@ -239,7 +239,7 @@ <h2>例</h2>
 <span class="w">  </span><span class="n"><a href="../cassert/assert.html">assert</a></span><span class="p">(</span><span class="n"><span style="color:#ff0000">chrono::make24</span></span><span class="p">(</span><span class="n"><a href="duration/op_h.html">12h</a></span><span class="p">,</span><span class="w"> </span><span class="nb">false</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n"><a href="duration/op_h.html">0h</a></span><span class="p">);</span>
 
 <span class="w">  </span><span class="n"><a href="../cassert/assert.html">assert</a></span><span class="p">(</span><span class="n"><span style="color:#ff0000">chrono::make24</span></span><span class="p">(</span><span class="n"><a href="duration/op_h.html">12h</a></span><span class="p">,</span><span class="w"> </span><span class="nb">true</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n"><a href="duration/op_h.html">12h</a></span><span class="p">);</span>
-<span class="w">  </span><span class="n"><a href="../cassert/assert.html">assert</a></span><span class="p">(</span><span class="n"><span style="color:#ff0000">chrono::make24</span></span><span class="p">(</span><span class="n"><a href="duration/op_h.html">1h</a></span><span class="p">,</span><span class="w"> </span><span class="nb">true</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mi">1Z</span><span class="n">YWmQvrILAWcxvhEmXkCtmXwqRLjWznQ</span><span class="p">);</span>
+<span class="w">  </span><span class="n"><a href="../cassert/assert.html">assert</a></span><span class="p">(</span><span class="n"><span style="color:#ff0000">chrono::make24</span></span><span class="p">(</span><span class="n"><a href="duration/op_h.html">1h</a></span><span class="p">,</span><span class="w"> </span><span class="nb">true</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="mf">1L</span><span class="n">kZyZqsgnNVrxOIarUGfhbRkdOEKKrgI</span><span class="p">);</span>
 <span class="w">  </span><span class="n"><a href="../cassert/assert.html">assert</a></span><span class="p">(</span><span class="n"><span style="color:#ff0000">chrono::make24</span></span><span class="p">(</span><span class="n"><a href="duration/op_h.html">3h</a></span><span class="p">,</span><span class="w"> </span><span class="nb">true</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n"><a href="duration/op_h.html">15h</a></span><span class="p">);</span>
 <span class="w">  </span><span class="n"><a href="../cassert/assert.html">assert</a></span><span class="p">(</span><span class="n"><span style="color:#ff0000">chrono::make24</span></span><span class="p">(</span><span class="n"><a href="duration/op_h.html">11h</a></span><span class="p">,</span><span class="w"> </span><span class="nb">true</span><span class="p">)</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n"><a href="duration/op_h.html">23h</a></span><span class="p">);</span>
 <span class="p">}</span>

reference/vector/vector.html

@@ -188,12 +188,12 @@
 
     <p class="text-right"><small>
       最終更新日時(UTC):
-      <span itemprop="datePublished" content="2025-06-11T14:15:20">
-        2025年06月11日 14時15分20秒
+      <span itemprop="datePublished" content="2026-06-10T07:27:25">
+        2026年06月10日 07時27分25秒
       </span>
       <br/>
       <span itemprop="author" itemscope itemtype="http://schema.org/Person">
-        <span itemprop="name">Raclamusi</span>
+        <span itemprop="name">Akira Takahashi</span>
       </span>
       が更新
     </small></p>
@@ -677,6 +677,7 @@ <h2><code>vector&lt;bool&gt;</code>特殊化</h2>
 <p>この特殊化はメモリ領域を最小化するために提供されていて、各要素は1bitの領域のみを必要とする。</p>
 <p><code>vector&lt;bool&gt;::reference</code>は<code>bool</code>への参照ではなく、領域内の1bitを指す型であり、以下のようなインタフェースである (<code>noexcept</code>はC++11から、<code>constexpr</code>はC++20から付加される)。</p>
 <p>C++23には<code>vector&lt;bool&gt;::iterator</code>が出力イテレータとなるために、<code>vector&lt;bool&gt;::reference</code>が<code>const</code>修飾を持つ<code>bool</code>からの代入演算子が追加され、<a href="../iterator/indirectly_writable.html"><code>indirectly_writable&lt;vector&lt;bool&gt;::iterator, bool&gt;</code></a>がモデルを満たすようになった。</p>
+<p>C++26では、<a class="cpprefjp-defined-word" data-desc="実引数依存の名前探索 (Argument Dependent Lookup)。引数の型が所属する名前空間の関数を探索する言語機能">ADL</a>で見つかる非メンバ<code>swap</code>関数が追加され、<code><a href="../bitset/bitset/reference.html">bitset&lt;N&gt;::reference</a></code>とインタフェースが統一された。これにあわせて、従来の<code>static</code>メンバ関数版の<code>swap</code>は非推奨となった。</p>
 <p><div class="codehilite"><pre><span></span><code><span class="k">class</span><span class="w"> </span><span class="nc">vector</span><span class="o">&lt;</span><span class="kt">bool</span><span class="o">&gt;::</span><span class="n">reference</span><span class="w"> </span><span class="p">{</span>
 <span class="w">  </span><span class="k">friend</span><span class="w"> </span><span class="k">class</span><span class="w"> </span><span class="nc">vector</span><span class="p">;</span>
 <span class="w">  </span><span class="k">constexpr</span><span class="w"> </span><span class="n">reference</span><span class="p">();</span><span class="w">                                       </span><span class="c1">// コンストラクタは非公開</span>
@@ -688,6 +689,12 @@ <h2><code>vector&lt;bool&gt;</code>特殊化</h2>
 <span class="w">  </span><span class="k">constexpr</span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="w"> </span><span class="k">operator</span><span class="o">=</span><span class="p">(</span><span class="k">const</span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="w"> </span><span class="n">x</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w"> </span><span class="c1">// vector&lt;bool&gt;のビットからの代入</span>
 <span class="w">  </span><span class="k">constexpr</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="n">reference</span><span class="o">&amp;</span><span class="w"> </span><span class="k">operator</span><span class="o">=</span><span class="p">(</span><span class="kt">bool</span><span class="w"> </span><span class="n">x</span><span class="p">)</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w"> </span><span class="c1">// *thisがconst時のboolからの代入（C++23）</span>
 <span class="w">  </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">flip</span><span class="p">()</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w">                              </span><span class="c1">// ビットの反転</span>
+
+<span class="w">  </span><span class="k">friend</span><span class="w"> </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">reference</span><span class="w"> </span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">reference</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w"> </span><span class="c1">// 2つのビットの交換（C++26）</span>
+<span class="w">  </span><span class="k">friend</span><span class="w"> </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">reference</span><span class="w"> </span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="kt">bool</span><span class="o">&amp;</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w">     </span><span class="c1">// ビットとboolの交換（C++26）</span>
+<span class="w">  </span><span class="k">friend</span><span class="w"> </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="kt">bool</span><span class="o">&amp;</span><span class="w"> </span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">reference</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w">     </span><span class="c1">// boolとビットの交換（C++26）</span>
+
+<span class="w">  </span><span class="k">static</span><span class="w"> </span><span class="k">constexpr</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">swap</span><span class="p">(</span><span class="n">reference</span><span class="w"> </span><span class="n">x</span><span class="p">,</span><span class="w"> </span><span class="n">reference</span><span class="w"> </span><span class="n">y</span><span class="p">)</span><span class="w"> </span><span class="k">noexcept</span><span class="p">;</span><span class="w"> </span><span class="c1">// ビットの交換（C++26から非推奨）</span>
 <span class="p">};</span>
 </code></pre></div>
 </p>
@@ -939,6 +946,10 @@ <h2>参照</h2>
 <li>C++23から、Range・コンテナ、<code>pair</code>、<code>tuple</code>のフォーマット出力、および文字・文字列のデバッグ指定 (<code>"?"</code>) が追加された</li>
 </ul>
 </li>
+<li><a href="https://open-std.org/jtc1/sc22/wg21/docs/papers/2025/p3612r1.html" target="_blank">P3612R1 Harmonize proxy-reference operations (LWG 3638 and 4187)</a><ul>
+<li>C++26で、<code>vector&lt;bool&gt;::reference</code>に<a class="cpprefjp-defined-word" data-desc="実引数依存の名前探索 (Argument Dependent Lookup)。引数の型が所属する名前空間の関数を探索する言語機能">ADL</a>で見つかる非メンバ<code>swap</code>関数が追加され、従来の<code>static</code>メンバ関数版<code>swap</code>が非推奨となった</li>
+</ul>
+</li>
 </ul></div>
 
       </div>