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‎reference/contracts.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="2025-04-27T03:37:16">
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2025年04月27日 03時37分16秒
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<span itemprop="datePublished" content="2025-04-29T13:14:15">
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2025年04月29日 13時14分15秒
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<td>C++26</td>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contract_violation.md.nolink">contract_violation</span></code></td>
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<td><code><a href="contracts/contract_violation.html">contract_violation</a></code></td>
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<td>契約違反に関する情報 (class)</td>
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<td>C++26</td>
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‎reference/contracts/contract_violation.html

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<div class="identifier-type">class</div><div class="header">&lt;contracts&gt;</div><h1 itemprop="name"><span class="namespace" title="namespace std::contracts">std::contracts::</span><span class="token">contract_violation</span></h1>
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<div itemprop="articleBody"><p><div class="codehilite"><pre><span></span><code><span class="k">namespace</span> <span class="n">std</span><span class="o">::</span><span class="n">contracts</span> <span class="p">{</span>
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<span class="k">class</span> <span class="nc">contract_violation</span> <span class="p">{</span>
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<span class="k">public</span><span class="o">:</span>
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<span class="k">const</span> <span class="kt">char</span><span class="o">*</span> <span class="n">comment</span><span class="p">()</span> <span class="k">const</span> <span class="k">noexcept</span><span class="p">;</span>
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<span class="n">contracts</span><span class="o">::</span><span class="n">detection_mode</span> <span class="n">detection_mode</span><span class="p">()</span> <span class="k">const</span> <span class="k">noexcept</span><span class="p">;</span>
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<span class="n">exception_ptr</span> <span class="nf">evaluation_exception</span><span class="p">()</span> <span class="k">const</span> <span class="k">noexcept</span><span class="p">;</span>
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<span class="kt">bool</span> <span class="nf">is_terminating</span><span class="p">()</span> <span class="k">const</span> <span class="k">noexcept</span><span class="p">;</span>
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<span class="n">assertion_kind</span> <span class="nf">kind</span><span class="p">()</span> <span class="k">const</span> <span class="k">noexcept</span><span class="p">;</span>
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<span class="n">source_location</span> <span class="nf">location</span><span class="p">()</span> <span class="k">const</span> <span class="k">noexcept</span><span class="p">;</span>
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<span class="n">evaluation_semantic</span> <span class="nf">sematic</span><span class="p">()</span> <span class="k">const</span> <span class="k">noexcept</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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</code></pre></div>
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</p>
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<p><code>contract_violation</code>型は、実行時に発生した契約違反が<code>handle_contract_violation</code>関数に渡されるために使用される型である。</p>
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<p>この型は、ユーザーによって構築、コピー、ムーブ、変更してはならない。</p>
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<h2>メンバ関数</h2>
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<table border="1" bordercolor="#888" style="border-collapse:collapse">
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<thead>
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<tr>
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<th>名前</th>
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<th>説明</th>
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<th>対応バージョン</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contracts/comment.md.nolink">comment</span></code></td>
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<td>契約違反の詳細を記録したchar列を返す</td>
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<td>C++26</td>
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</tr>
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<tr>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contracts/detection_mode.md.nolink">detection_mode</span></code></td>
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<td>契約違反が特定された方法を返す</td>
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<td>C++26</td>
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</tr>
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<tr>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contracts/evaluation_exception.md.nolink">evaluation_exception</span></code></td>
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<td>契約が<a class="cpprefjp-defined-word" data-desc="問題が発生したときに、現在実行位置を過去に通過・記録した位置に戻し、文脈情報を添えて紐づけられた処理(例外ハンドラー)を呼び出す仕組み。またはその事態">例外</a>を飛ばしたことによって終了した場合の<a class="cpprefjp-defined-word" data-desc="問題が発生したときに、現在実行位置を過去に通過・記録した位置に戻し、文脈情報を添えて紐づけられた処理(例外ハンドラー)を呼び出す仕組み。またはその事態">例外</a>へのポインタ</td>
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<td>C++26</td>
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</tr>
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<tr>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contracts/is_terminating.md.nolink">is_terminating</span></code></td>
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<td>契約違反によってプログラムがターミネートされるかを返す</td>
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<td>C++26</td>
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</tr>
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<tr>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contracts/kind.md.nolink">kind</span></code></td>
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<td>違反した契約の種類</td>
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<td>C++26</td>
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</tr>
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<tr>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contracts/location.md.nolink">location</span></code></td>
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<td>違反した場所を返す</td>
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<td>C++26</td>
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</tr>
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<tr>
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<td><code><span href="https://cpprefjp.github.io/reference/contracts/contracts/semantic.md.nolink">semantic</span></code></td>
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<td>違反した契約のセマンティクス</td>
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<td>C++26</td>
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</tr>
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</tbody>
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</table>
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<h2>参照</h2>
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<ul>
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<li><a href="https://open-std.org/jtc1/sc22/wg21/docs/papers/2025/p2900r14.pdf" target="_blank">Contracts for C++</a></li>
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