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202+ 最終更新日時(UTC):
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204+ 2025年05月30日 08時05分25秒
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210+ が更新
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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 "> type-alias</ div > < div class ="header "> <execution></ div > < h1 itemprop ="name "> < span class ="namespace " title ="namespace std::execution "> std::execution::</ span > < span class ="token "> single-sender-value-type</ 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 ="p "> ,</ span > < span class ="k "> class</ span > < span class ="nc "> Env</ span > < span class ="o "> ></ span >
229+ < span class ="k "> using</ span > < span class ="n "> single</ span > < span class ="o "> -</ span > < span class ="n "> sender</ span > < span class ="o "> -</ span > < span class ="n "> value</ span > < span class ="o "> -</ span > < span class ="n "> type</ span > < span class ="o "> =</ span > < span class ="n "> < i > see below</ i > </ span > < span class ="p "> ;</ span > < span class ="c1 "> // exposition only</ span >
230+ </ code > </ pre > </ div >
231+ </ p >
232+ < h2 > 概要</ h2 >
233+ < p > < code > single-sender-value-type</ code > は、実行制御ライブラリの仕様定義で用いられる説明専用のエイリアステンプレートである。</ p >
234+ < p > 型< code > Sndr</ code > と< code > Env</ code > に対して、< code > single-sender-value-type<Sndr, Env></ code > は下記のエイリアスとなる。</ p >
235+ < ul >
236+ < li > < code > < a href ="value_types_of_t.html "> value_types_of_t</ a > <Sndr, Env, < a href ="../../type_traits/decay.html "> decay_t</ a > , < a href ="../../type_traits/type_identity.html "> type_identity_t</ a > ></ 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 > であるならば、その型。</ li >
237+ < li > そうではなく、< code > < a href ="value_types_of_t.html "> value_types_of_t</ a > <Sndr, Env, < a href ="../../tuple/tuple.html "> tuple</ a > , < a href ="../../variant/variant.html "> variant</ a > ></ code > が< code > variant<tuple<>></ code > もしくは< code > variant<></ code > ならば、< code > void</ code > 型。</ li >
238+ < li > < code > < a href ="value_types_of_t.html "> value_types_of_t</ a > <Sndr, Env, < a href ="decayed-tuple.html "> decayed-tuple</ a > , < a href ="../../type_traits/type_identity.html "> type_identity_t</ a > </ 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 > であるならば、その型。</ li >
239+ < li > そうでなければ、< code > single-sender-value-type<Sndr, Env></ code > は< a class ="cpprefjp-defined-word " data-desc ="プログラムが適格でないこと。コンパイルエラーなどになる " href ="../../../implementation-compliance.html#dfn-ill-formed "> 不適格</ a > 。</ li >
240+ </ ul >
241+ < h2 > バージョン</ h2 >
242+ < h3 > 言語</ h3 >
243+ < ul >
244+ < li > C++26</ li >
245+ </ ul >
246+ < h2 > 関連項目</ h2 >
247+ < ul >
248+ < li > < code > < a href ="stopped_as_optional.html "> execution::stopped_as_optional</ a > </ code > </ li >
249+ < li > < code > < span href ="https://cpprefjp.github.io/reference/execution/execution/sender-awaitable.md.nolink "> sender-awaitable</ span > </ code > </ li >
250+ </ ul >
251+ < h2 > 参照</ h2 >
252+ < ul >
253+ < 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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