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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: 2026-01-19 23:16:06 JST
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- ⌚ 更新時刻: 2026-01-19 23:41:09 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: [`cf6767c..09f3948`](https://github.com/cpprefjp/site/compare/cf6767c3100bdba1aa2af40b0cb12b8b555c42d3..09f3948558ef3253bc2b7faea5f274ea489a88eb)
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- **⫯** ソースの変更: [`cf6767c..28daf3e`](https://github.com/cpprefjp/site/compare/cf6767c3100bdba1aa2af40b0cb12b8b555c42d3..28daf3ed97148159a029b520578a0585bd2ca5af)
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## 変更記事一覧 (6件)
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## 変更記事一覧 (12件)
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- 📝 [`reference`](https://cpprefjp.github.io/site/gen/pull/1578/reference.html)
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- 📝 [`reference/csignal`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal.html) ✨
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- 📝 [`reference/csignal/raise`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/raise.html) ✨
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- 📝 [`reference/csignal/sig_atomic_t`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/sig_atomic_t.html) ✨
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- 📝 [`reference/csignal/sigabrt`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/sigabrt.html) ✨
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- 📝 [`reference/csignal/sigfpe`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/sigfpe.html) ✨
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- 📝 [`reference/csignal/sigill`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/sigill.html) ✨
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- 📝 [`reference/csignal/sigint`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/sigint.html) ✨
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- 📝 [`reference/csignal/signal`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/signal.html) ✨
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- 📝 [`reference/csignal/sigsegv`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/sigsegv.html) ✨
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- 📝 [`reference/csignal/sigterm`](https://cpprefjp.github.io/site/gen/pull/1578/reference/csignal/sigterm.html) ✨
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- 📝 [`reference/cstdlib/abort`](https://cpprefjp.github.io/site/gen/pull/1578/reference/cstdlib/abort.html)

‎gen/pull/1578/reference/csignal.html‎

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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="2026-01-18T14:39:37">
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2026年01月18日 14時39分37秒
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<span itemprop="datePublished" content="2026-01-19T14:34:31">
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2026年01月19日 14時34分31秒
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</span>
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<span itemprop="author" itemscope itemtype="http://schema.org/Person">
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</thead>
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<tbody>
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<tr>
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<td><code>SIGINT</code></td>
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<td><code><a href="csignal/sigint.html">SIGINT</a></code></td>
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<td>割り込みを示すシグナル番号</td>
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<td></td>
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</tr>
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<tr>
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<td><code>SIGILL</code></td>
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<td><code><a href="csignal/sigill.html">SIGILL</a></code></td>
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<td>不正な命令を示すシグナル番号</td>
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<td></td>
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<td><code>SIGABRT</code></td>
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<td><code><a href="csignal/sigabrt.html">SIGABRT</a></code></td>
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<td><code>abort</code>関数などによる異常終了を示すシグナル番号</td>
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<td></td>
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<td><code>SIGFPE</code></td>
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<td><code><a href="csignal/sigfpe.html">SIGFPE</a></code></td>
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<td>算術演算エラーを示すシグナル番号</td>
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<td></td>
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<td><code>SIGSEGV</code></td>
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<td>記憶領域への不正アクセスを示すシグナル番号</td>
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<td><code><a href="csignal/sigsegv.html">SIGSEGV</a></code></td>
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<td>無効なメモリアクセスを示すシグナル番号</td>
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<td></td>
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<td><code>SIGTERM</code></td>
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<td><code><a href="csignal/sigterm.html">SIGTERM</a></code></td>
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<td>終了要求を示すシグナル番号</td>
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‎gen/pull/1578/reference/csignal/sig_atomic_t.html‎

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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="2026-01-19T14:11:29">
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2026年01月19日 14時11分29秒
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<span itemprop="datePublished" content="2026-01-19T14:35:12">
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2026年01月19日 14時35分12秒
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<h2>概要</h2>
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<p><code>sig_atomic_t</code>は、非同期シグナルハンドラと通常の実行コンテキストの間で、単純な読み書きを分断されずに行えることが保証された整数型である。</p>
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<p>この型に対して保証されるのは単純な代入および読み出しのみであり、
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複合操作や算術演算は保証されない。
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実際の使用では通常<code>volatile</code>修飾子と組み合わせて用いられる。</p>
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複合操作や算術演算は保証されない。</p>
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<p>実際の使用では通常<code>volatile</code>修飾子と組み合わせて用いられる。</p>
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<p>具体的な型は<a class="cpprefjp-defined-word" data-desc="処理系定義の動作。処理系によって事前に定めた動作をする" href="../../implementation-compliance.html#dfn-implementation-defined-behavior">処理系定義</a>である。</p>
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<h2>備考</h2>
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<p>最大値は<code>SIG_ATOMIC_MAX</code>、最小値は<code>SIG_ATOMIC_MIN</code>に定義されている。</p>

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

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最終更新日時(UTC):
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2026年01月19日 14時34分31秒
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<span class="fa fa-fw fa-clock-o fa-flip-horizontal"></span>履歴
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<div class="identifier-type">macro</div><div class="header">&lt;csignal&gt;</div><h1 itemprop="name"><span class="token">SIGABRT</span></h1>
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<div itemprop="articleBody"><p><div class="codehilite"><pre><span></span><code><span class="cp">#define SIGABRT <i>see below</i></span>
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</code></pre></div>
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</p>
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<h2>概要</h2>
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<p><code>abort</code>関数などによる異常終了時に送られるシグナルの、シグナル番号を表す<code>int</code>型のマクロ。</p>
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<p>値は正の整数であり、実際の値は<a class="cpprefjp-defined-word" data-desc="処理系定義の動作。処理系によって事前に定めた動作をする" href="../../implementation-compliance.html#dfn-implementation-defined-behavior">処理系定義</a>である。</p>
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<h2>例</h2>
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<p><div class="yata" id="c54138fa8dc2d88b24879856ced2e2d0b17440d4"><div class="codehilite"><pre><span></span><code><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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<span class="cp">#include</span> <span class="cpf">&lt;csignal&gt;</span><span class="cp"></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"><a href="../iostream/cout.html">std::cout</a></span> <span class="o">&lt;&lt;</span> <span class="n"><span style="color:#ff0000">SIGABRT</span></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="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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<h2>出力例</h2>
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<p><pre><code>6
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</code></pre>
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処理系により異なる</p>
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<h2>関連項目</h2>
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<ul>
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<li><code><a href="../cstdlib/abort.html">abort</a></code></li>
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