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202+ 最終更新日時(UTC):
203+ < span itemprop ="datePublished " content ="2025-04-18T06:17:05 ">
204+ 2025年04月18日 06時17分05秒
205+ </ span >
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210+ が更新
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216+ < span class ="fa fa-fw fa-clock-o fa-flip-horizontal "> </ span > 履歴
217+ </ a >
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219+ < span class ="fa fa-fw fa-pencil "> </ span > 編集
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226+
227+ < div class ="identifier-type "> function template</ div > < div class ="header "> <execution></ div > < h1 itemprop ="name "> < span class ="namespace " title ="namespace std::execution "> std::execution::</ span > < span class ="token "> apply_sender</ span > < span class ="cpp cpp26 " title ="C++26で追加 "> (C++26)</ span > </ h1 >
228+ < 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 "> execution</ span > < span class ="p "> {</ span >
229+ < span class ="k "> template</ span > < span class ="o "> <</ span > < span class ="k "> class</ span > < span class ="nc "> Domain</ span > < span class ="p "> ,</ span > < span class ="k "> class</ span > < span class ="nc "> Tag</ span > < span class ="p "> ,</ span > < span class ="n "> < a href ="sender.html "> sender</ a > </ span > < span class ="n "> Sndr</ span > < span class ="p "> ,</ span > < span class ="n "> class</ span > < span class ="p "> ...</ span > < span class ="n "> Args</ span > < span class ="o "> ></ span >
230+ < span class ="k "> constexpr</ span > < span class ="n "> < a href ="../../../lang/cpp14/decltype_auto.html "> decltype(auto)</ a > </ span > < span class ="n "> apply_sender</ span > < span class ="p "> (</ span > < span class ="n "> Domain</ span > < span class ="n "> dom</ span > < span class ="p "> ,</ span > < span class ="n "> Tag</ span > < span class ="p "> ,</ span > < span class ="n "> Sndr</ span > < span class ="o "> &&</ span > < span class ="n "> sndr</ span > < span class ="p "> ,</ span > < span class ="n "> Args</ span > < span class ="o "> &&</ span > < span class ="p "> ...</ span > < span class ="n "> args</ span > < span class ="p "> )</ span >
231+ < span class ="k "> noexcept</ span > < span class ="p "> (</ span > < span class ="n "> < i > see below</ i > </ span > < span class ="p "> );</ span >
232+ < span class ="p "> }</ span >
233+ </ code > </ pre > </ div >
234+ </ p >
235+ < h2 > 概要</ h2 >
236+ < p > < a href ="default_domain.html "> 実行ドメイン</ a > に応じてSenderアルゴリズムを適用する。
237+ Senderアルゴリズム動作のカスタマイゼーションポイントとして機能する。</ p >
238+ < ul >
239+ < li > 定義されていれば、< code > dom.apply_sender</ code > メンバ関数に適用動作を委譲する。</ li >
240+ < li > そうでなければ、デフォルト実行ドメイン< code > < a href ="default_domain/apply_sender.html "> apply_sender</ a > </ code > に適用動作を委譲する。</ li >
241+ </ ul >
242+ < h2 > < a class ="cpprefjp-defined-word " data-desc ="関数等の意味論を構成する要素の1つ。Constraints。関数であればオーバーロード解決に参加するための条件、それ以外であれば受け付ける型の条件 "> テンプレートパラメータ制約</ a > </ h2 >
243+ < p > 説明用の式< code > e</ code > を次の通りとしたとき、式< code > e</ code > が< a class ="cpprefjp-defined-word " data-desc ="プログラムが文法規則・診断対象の意味規則・単一定義規則を満たすこと " href ="../../../implementation-compliance.html#dfn-well-formed "> 適格</ a > であること。</ p >
244+ < ul >
245+ < li > < a class ="cpprefjp-defined-word " data-desc ="プログラムが文法規則・診断対象の意味規則・単一定義規則を満たすこと " href ="../../../implementation-compliance.html#dfn-well-formed "> 適格</ a > ならば、式< code > dom.apply_sender(Tag(), < a href ="../../utility/forward.html "> std::forward</ a > <Sndr>(sndr), < a href ="../../utility/forward.html "> std::forward</ a > <Args>(args)...)</ code > </ li >
246+ < li > そうでなければ、< code > < a href ="default_domain.html "> default_domain()</ a > .< a href ="default_domain/apply_sender.html "> apply_sender</ a > (Tag(), < a href ="../../utility/forward.html "> std::forward</ a > <Sndr>(sndr), < a href ="../../utility/forward.html "> std::forward</ a > <Args>(args)...)</ code > </ li >
247+ </ ul >
248+ < h2 > < a class ="cpprefjp-defined-word " data-desc ="関数呼び出し式の評価結果となるオブジェクト・値 "> 戻り値</ a > </ h2 >
249+ < p > < code > e</ code > を返す。</ p >
250+ < h2 > < 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 > </ h2 >
251+ < p > < code > noexcept(e) == true</ code > ならば、< 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 > を投げない。
252+ そうでなければ、式< code > e</ code > から送出される< 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 > 。</ p >
253+ < h2 > バージョン</ h2 >
254+ < h3 > 言語</ h3 >
255+ < ul >
256+ < li > C++26</ li >
257+ </ ul >
258+ < h3 > 処理系</ h3 >
259+ < ul >
260+ < li > < a href ="../../../implementation.html#clang "> Clang</ a > : ??</ li >
261+ < li > < a href ="../../../implementation.html#gcc "> GCC</ a > : ??</ li >
262+ < li > < a href ="../../../implementation.html#icc "> ICC</ a > : ??</ li >
263+ < li > < a href ="../../../implementation.html#visual_cpp "> Visual C++</ a > : ??</ li >
264+ </ ul >
265+ < h2 > 関連項目</ h2 >
266+ < ul >
267+ < li > < code > < a href ="default_domain/apply_sender.html "> default_domain::apply_sender</ a > </ code > </ li >
268+ </ ul >
269+ < h2 > 参照</ h2 >
270+ < ul >
271+ < li > < a href ="https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2999r3.html " target ="_blank "> P2999R3 Sender Algorithm Customization</ a > </ li >
272+ < li > < a href ="https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2024/p2300r10.html " target ="_blank "> P2300R10 < code > std::execution</ code > </ a > </ li >
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