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202+ 最終更新日時(UTC):
203+ < span itemprop ="datePublished " content ="2025-05-01T07:59:53 ">
204+ 2025年05月01日 07時59分53秒
205+ </ span >
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208+ < span itemprop ="name "> yoh</ span >
209+ </ span >
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 "> get-domain-early</ 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 "> template</ span > < span class ="o "> <</ span > < span class ="k "> class</ span > < span class ="nc "> Sndr</ span > < span class ="o "> ></ span >
229+ < span class ="k "> constexpr</ span > < span class ="k "> auto</ span > < span class ="n "> get</ span > < span class ="o "> -</ span > < span class ="n "> domain</ span > < span class ="o "> -</ span > < span class ="n "> early</ span > < span class ="p "> (</ span > < span class ="k "> const</ span > < span class ="n "> Sndr</ span > < span class ="o "> &</ span > < span class ="n "> sndr</ span > < span class ="p "> )</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
230+ </ code > </ pre > </ div >
231+ </ p >
232+ < h2 > 概要</ h2 >
233+ < p > < a href ="sender.html "> Sender</ a > アルゴリズム構築時のカスタマイゼーションポイントとして、< a href ="default_domain.html "> 実行ドメイン</ a > を取得する説明専用の関数テンプレート。</ p >
234+ < p > 下記の優先順で実行ドメインを検索し、最初に妥当となる型を採用する。</ p >
235+ < ul >
236+ < li > Senderの< a href ="../queryable.html "> 属性</ a > の実行ドメイン</ li >
237+ < li > Senderの< a href ="get_completion_scheduler.html "> 完了Scheduler</ a > の実行ドメイン</ li >
238+ < li > < a href ="default_domain.html "> デフォルト実行ドメイン</ a > </ li >
239+ </ ul >
240+ < h2 > 効果</ h2 >
241+ < p > 説明用の型< code > Domain</ code > を下記リストのうち最初に妥当となる式の型と定義したとき、< code > return Doamin();</ code > と等価。</ p >
242+ < ul >
243+ < li > < code > < a href ="get_domain.html "> get_domain</ a > (< a href ="get_env.html "> get_env</ a > (sndr))</ code > </ li >
244+ < li > < code > < a href ="completion-domain.html "> completion-domain</ a > (sndr)</ code > </ li >
245+ < li > < code > < a href ="default_domain.html "> default_domain()</ a > </ code > </ li >
246+ </ ul >
247+ < 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 >
248+ < p > 投げない</ p >
249+ < h2 > バージョン</ h2 >
250+ < h3 > 言語</ h3 >
251+ < ul >
252+ < li > C++26</ li >
253+ </ ul >
254+ < h2 > 関連項目</ h2 >
255+ < ul >
256+ < li > < code > < a href ="../this_thread/sync_wait.html "> this_thread::sync_wait</ a > </ code > </ li >
257+ < li > < code > < a href ="../this_thread/sync_wait_with_variant.html "> this_thread::sync_wait_with_variant</ a > </ code > </ li >
258+ </ ul >
259+ < h2 > 参照</ h2 >
260+ < ul >
261+ < li > < a href ="https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2999r3.html " target ="_blank "> P2999R3 Sender Algorithm Customization</ a > </ li >
262+ < 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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264+
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