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‎gen/pull/1578/PREVIEW.md‎

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# PR [\#1578](https://github.com/cpprefjp/site/pull/1578) プレビュー
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- ⌚ 更新時刻: 2026-01-21 00:17:38 JST
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- ⌚ 更新時刻: 2026-01-21 00:31:32 JST
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- 🔍 [プレビュー (HTML)](https://cpprefjp.github.io/site/gen/pull/1578)
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- 📈 [プレビュー生成記録](https://github.com/cpprefjp/site/actions?query=event%3Apull_request_target+branch%3Afeat%2Fcsignal)
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- **⫯** ソースの変更: [`e76ce0f..05c4544`](https://github.com/cpprefjp/site/compare/e76ce0f6088c0bef306d19d0df4378f603dcfdc1..05c45443905a81932673d78f9a09143ae9ffb34c)
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- **⫯** ソースの変更: [`e76ce0f..85a0b02`](https://github.com/cpprefjp/site/compare/e76ce0f6088c0bef306d19d0df4378f603dcfdc1..85a0b023dd563881f27255a4fa35a4c2ae520060)
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## 変更記事一覧 (18件)
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‎gen/pull/1578/reference/csignal/sigill.html‎

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</head>
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<header data-kunai-mdinfo="{&#34;meta&#34;: {&#34;header&#34;: [&#34;csignal&#34;], &#34;id-type&#34;: [&#34;macro&#34;]}, &#34;sources&#34;: [{&#34;id&#34;: &#34;f21c89638c7fde6db43f51593496e3231ca48318&#34;, &#34;source&#34;: &#34;#include &lt;csignal&gt;\n#include &lt;cstdlib&gt;\n\nvoid handler(int sig)\n{\n std::_Exit(0);\n}\n\nint main()\n{\n std::signal(SIGILL, handler);\n std::raise(SIGILL);\n return 0;\n}\n&#34;}], &#34;page_id&#34;: [&#34;reference&#34;, &#34;csignal&#34;, &#34;sigill&#34;]}">
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<header data-kunai-mdinfo="{&#34;meta&#34;: {&#34;header&#34;: [&#34;csignal&#34;], &#34;id-type&#34;: [&#34;macro&#34;]}, &#34;sources&#34;: [{&#34;id&#34;: &#34;6a48bdc49c42ae188ccc9de9a7e15270598c2f5a&#34;, &#34;source&#34;: &#34;#include &lt;csignal&gt;\n#include &lt;cstdlib&gt;\n\nvoid handler(int)\n{\n std::_Exit(0);\n}\n\nint main()\n{\n std::signal(SIGILL, handler);\n std::raise(SIGILL);\n}\n&#34;}], &#34;page_id&#34;: [&#34;reference&#34;, &#34;csignal&#34;, &#34;sigill&#34;]}">
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<p class="text-right"><small>
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最終更新日時(UTC):
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<span itemprop="datePublished" content="2026-01-20T15:13:01">
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2026年01月20日 15時13分01秒
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<span itemprop="datePublished" content="2026-01-20T15:23:00">
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2026年01月20日 15時23分00秒
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</span>
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<br/>
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<span itemprop="author" itemscope itemtype="http://schema.org/Person">
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<p>無効な命令を実行しようとした際に送られるシグナルの、シグナル番号を表すマクロ。</p>
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<p><code>int</code>型の正の整数の定数式に展開され、実際の値は<a class="cpprefjp-defined-word" data-desc="未規定の動作。事前の断りなく処理系によって異なる動作をする" href="../../implementation-compliance.html#dfn-unspecified-behavior">未規定</a>。</p>
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<h2>例</h2>
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<p><div class="yata" id="f21c89638c7fde6db43f51593496e3231ca48318"><div class="codehilite"><pre><span></span><code><span class="cp">#include</span> <span class="cpf">&lt;csignal&gt;</span><span class="cp"></span>
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<p><div class="yata" id="6a48bdc49c42ae188ccc9de9a7e15270598c2f5a"><div class="codehilite"><pre><span></span><code><span class="cp">#include</span> <span class="cpf">&lt;csignal&gt;</span><span class="cp"></span>
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<span class="cp">#include</span> <span class="cpf"><a href="../cstdlib.html">&lt;cstdlib&gt;</a></span><span class="cp"></span>
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<span class="kt">void</span> <span class="nf">handler</span><span class="p">(</span><span class="kt">int</span> <span class="n">sig</span><span class="p">)</span>
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<span class="kt">void</span> <span class="nf">handler</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span>
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<span class="p">{</span>
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<span class="n">std</span><span class="o">::</span><span class="n">_Exit</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span>
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<span class="p">}</span>
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<span class="p">{</span>
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<span class="n">std</span><span class="o">::</span><span class="n">signal</span><span class="p">(</span><span class="n"><span style="color:#ff0000">SIGILL</span></span><span class="p">,</span> <span class="n">handler</span><span class="p">);</span>
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<span class="n">std</span><span class="o">::</span><span class="n">raise</span><span class="p">(</span><span class="n"><span style="color:#ff0000">SIGILL</span></span><span class="p">);</span>
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<span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
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<span class="p">}</span>
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</code></pre></div>
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</div></p>
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<h3>出力</h3>
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<p><pre><code>SIGILL received
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</code></pre></p></div>
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<p><pre><code></code></pre></p></div>
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</div>
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</div>

‎gen/pull/1578/reference/csignal/sigint.html‎

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<header data-kunai-mdinfo="{&#34;meta&#34;: {&#34;header&#34;: [&#34;csignal&#34;], &#34;id-type&#34;: [&#34;macro&#34;]}, &#34;sources&#34;: [{&#34;id&#34;: &#34;0e1debfc3ddfdd6b4538c84ad44d29a4ebe9ae67&#34;, &#34;source&#34;: &#34;#include &lt;csignal&gt;\n#include &lt;iostream&gt;\n\nvolatile std::sig_atomic_t flag = 0;\n\nvoid handler(int sig)\n{\n flag = 1;\n}\n\nint main()\n{\n std::signal(SIGINT, handler);\n std::raise(SIGINT);\n if (flag)\n {\n std::cout &lt;&lt; \&#34;SIGINT received\&#34; &lt;&lt; std::endl;\n }\n return 0;\n}\n&#34;}], &#34;page_id&#34;: [&#34;reference&#34;, &#34;csignal&#34;, &#34;sigint&#34;]}">
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<header data-kunai-mdinfo="{&#34;meta&#34;: {&#34;header&#34;: [&#34;csignal&#34;], &#34;id-type&#34;: [&#34;macro&#34;]}, &#34;sources&#34;: [{&#34;id&#34;: &#34;b385528ad58db1b0b03903975266d92db21d0e0c&#34;, &#34;source&#34;: &#34;#include &lt;csignal&gt;\n#include &lt;cstdlib&gt;\n\nvolatile std::sig_atomic_t flag = 0;\n\nvoid handler(int)\n{\n std::_Exit(0);\n}\n\nint main()\n{\n std::signal(SIGINT, handler);\n std::raise(SIGINT);\n return 0;\n}\n&#34;}], &#34;page_id&#34;: [&#34;reference&#34;, &#34;csignal&#34;, &#34;sigint&#34;]}">
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<nav class="navbar navbar-default" role="navigation">
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<div class="container-fluid">
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<p class="text-right"><small>
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最終更新日時(UTC):
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<span itemprop="datePublished" content="2026-01-20T15:13:01">
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2026年01月20日 15時13分01秒
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<span itemprop="datePublished" content="2026-01-20T15:23:00">
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2026年01月20日 15時23分00秒
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</span>
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<br/>
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<span itemprop="author" itemscope itemtype="http://schema.org/Person">
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<p>外部割り込みが発生した際に送られるシグナルの、シグナル番号を表すマクロ。</p>
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<p><code>int</code>型の正の整数の定数式に展開され、実際の値は<a class="cpprefjp-defined-word" data-desc="未規定の動作。事前の断りなく処理系によって異なる動作をする" href="../../implementation-compliance.html#dfn-unspecified-behavior">未規定</a>。</p>
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<h2>例</h2>
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<p><div class="yata" id="0e1debfc3ddfdd6b4538c84ad44d29a4ebe9ae67"><div class="codehilite"><pre><span></span><code><span class="cp">#include</span> <span class="cpf">&lt;csignal&gt;</span><span class="cp"></span>
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<span class="cp">#include</span> <span class="cpf"><a href="../iostream.html">&lt;iostream&gt;</a></span><span class="cp"></span>
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<p><div class="yata" id="b385528ad58db1b0b03903975266d92db21d0e0c"><div class="codehilite"><pre><span></span><code><span class="cp">#include</span> <span class="cpf">&lt;csignal&gt;</span><span class="cp"></span>
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<span class="cp">#include</span> <span class="cpf"><a href="../cstdlib.html">&lt;cstdlib&gt;</a></span><span class="cp"></span>
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<span class="k">volatile</span> <span class="n">std</span><span class="o">::</span><span class="kt">sig_atomic_t</span> <span class="n">flag</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
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<span class="kt">void</span> <span class="nf">handler</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span>
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<span class="p">{</span>
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<span class="n">flag</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
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<span class="n">std</span><span class="o">::</span><span class="n">_Exit</span><span class="p">(</span><span class="mi">0</span><span class="p">);</span>
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<span class="p">}</span>
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<span class="kt">int</span> <span class="nf">main</span><span class="p">()</span>
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<span class="p">{</span>
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<span class="n">std</span><span class="o">::</span><span class="n">signal</span><span class="p">(</span><span class="n"><span style="color:#ff0000">SIGINT</span></span><span class="p">,</span> <span class="n">handler</span><span class="p">);</span>
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<span class="n">std</span><span class="o">::</span><span class="n">raise</span><span class="p">(</span><span class="n"><span style="color:#ff0000">SIGINT</span></span><span class="p">);</span>
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<span class="k">if</span> <span class="p">(</span><span class="n">flag</span><span class="p">)</span>
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<span class="p">{</span>
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<span class="n"><a href="../iostream/cout.html">std::cout</a></span> <span class="o">&lt;&lt;</span> <span class="s">"<span style="color:#ff0000">SIGINT</span> received"</span> <span class="o">&lt;&lt;</span> <span class="n"><a href="../ostream/endl.html">std::endl</a></span><span class="p">;</span>
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<span class="p">}</span>
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<span class="k">return</span> <span class="mi">0</span><span class="p">;</span>
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</code></pre></div>
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</div></p>
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<h3>出力</h3>
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<p><pre><code>SIGINT received
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<p><pre><code></code></pre></p></div>
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‎gen/pull/1578/reference/csignal/sigterm.html‎

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<header data-kunai-mdinfo="{&#34;meta&#34;: {&#34;header&#34;: [&#34;csignal&#34;], &#34;id-type&#34;: [&#34;macro&#34;]}, &#34;sources&#34;: [{&#34;id&#34;: &#34;6f1ac0a0f138ee967ef9cf0c2352c0f7a761e2f0&#34;, &#34;source&#34;: &#34;#include &lt;csignal&gt;\n#include &lt;cstdlib&gt;\n\nvoid handler(int sig)\n{\n std::_Exit(0);\n}\n\nint main()\n{\n std::signal(SIGTERM, handler);\n std::raise(SIGTERM);\n return 0;\n}\n&#34;}], &#34;page_id&#34;: [&#34;reference&#34;, &#34;csignal&#34;, &#34;sigterm&#34;]}">
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<header data-kunai-mdinfo="{&#34;meta&#34;: {&#34;header&#34;: [&#34;csignal&#34;], &#34;id-type&#34;: [&#34;macro&#34;]}, &#34;sources&#34;: [{&#34;id&#34;: &#34;d615f4a843b2b8428e42b176b14373ddac8a8515&#34;, &#34;source&#34;: &#34;#include &lt;csignal&gt;\n#include &lt;cstdlib&gt;\n\nvoid handler(int)\n{\n std::_Exit(0);\n}\n\nint main()\n{\n std::signal(SIGTERM, handler);\n std::raise(SIGTERM);\n return 0;\n}\n&#34;}], &#34;page_id&#34;: [&#34;reference&#34;, &#34;csignal&#34;, &#34;sigterm&#34;]}">
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<span itemprop="datePublished" content="2026-01-20T15:23:00">
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</span>
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<span itemprop="author" itemscope itemtype="http://schema.org/Person">
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<p>プロセスの終了を要求するために送られるシグナルの、シグナル番号を表すマクロ。</p>
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<p><code>int</code>型の正の整数の定数式に展開され、実際の値は<a class="cpprefjp-defined-word" data-desc="未規定の動作。事前の断りなく処理系によって異なる動作をする" href="../../implementation-compliance.html#dfn-unspecified-behavior">未規定</a>。</p>
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<h2>例</h2>
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<p><div class="yata" id="6f1ac0a0f138ee967ef9cf0c2352c0f7a761e2f0"><div class="codehilite"><pre><span></span><code><span class="cp">#include</span> <span class="cpf">&lt;csignal&gt;</span><span class="cp"></span>
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<p><div class="yata" id="d615f4a843b2b8428e42b176b14373ddac8a8515"><div class="codehilite"><pre><span></span><code><span class="cp">#include</span> <span class="cpf">&lt;csignal&gt;</span><span class="cp"></span>
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<span class="cp">#include</span> <span class="cpf"><a href="../cstdlib.html">&lt;cstdlib&gt;</a></span><span class="cp"></span>
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<span class="kt">void</span> <span class="nf">handler</span><span class="p">(</span><span class="kt">int</span><span class="p">)</span>
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<span class="p">{</span>
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<span class="p">}</span>

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