1+ <!doctype html>
2+ < html class ="cpprefjp " lang ="ja " itemscope ="" itemtype ="http://schema.org/WebPage ">
3+ < head >
4+
5+
6+ <!-- Google tag (gtag.js) -->
7+ < script async src ="https://www.googletagmanager.com/gtag/js?id=G-NXNBNVBTJS "> </ script >
8+ < script >
9+ window . dataLayer = window . dataLayer || [ ] ;
10+ function gtag ( ) { dataLayer . push ( arguments ) ; }
11+ gtag ( 'js' , new Date ( ) ) ;
12+
13+ gtag ( 'config' , 'G-NXNBNVBTJS' ) ;
14+ </ script >
15+
16+
17+ < meta charset ="UTF-8 ">
18+
19+ < title > env-promise - cpprefjp C++日本語リファレンス</ title >
20+
21+ < meta name ="viewport " content ="width=device-width,initial-scale=1 ">
22+ < meta name ="keywords " content ="
23+ C++,標準ライブラリ,リファレンス,ドキュメント,STL,std,execution,class template,std::execution,cpp26
24+ >
25+ < meta name ="title " content ="env-promise - cpprefjp C++日本語リファレンス " />
26+ < meta itemprop ="name " content ="env-promise - cpprefjp C++日本語リファレンス " />
27+ < meta property ="og:title " content ="env-promise - cpprefjp C++日本語リファレンス " />
28+ < meta property ="og:url " content ="https://cpprefjp.github.io/reference/execution/execution/env-promise.html " />
29+ < meta property ="og:site_name " content ="cpprefjp - C++日本語リファレンス " />
30+ < meta property ="og:type " content ="article " />
31+ < meta property ="og:description " content ="`env-promise`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クラステンプレートである。 " />
32+ < meta name ="twitter:card " content ="summary " />
33+ < meta name ="twitter:title " content ="env-promise - cpprefjp C++日本語リファレンス " />
34+ < meta name ="twitter:url " content ="https://cpprefjp.github.io/reference/execution/execution/env-promise.html " />
35+ < meta name ="twitter:description " content ="`env-promise`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クラステンプレートである。 " />
36+
37+
38+ < link rel ="alternate " type ="application/atom+xml " title ="Atom " href ="https://cpprefjp.github.io/rss.xml " />
39+
40+
41+ < link rel ="apple-touch-icon " sizes ="180x180 " href ="../../../static/favicons/apple-touch-icon.png?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e ">
42+ < link rel ="icon " type ="image/png " sizes ="32x32 " href ="../../../static/favicons/favicon-32x32.png?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e ">
43+ < link rel ="icon " type ="image/png " sizes ="16x16 " href ="../../../static/favicons/favicon-16x16.png?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e ">
44+ < link rel ="manifest " href ="../../../manifest.json?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e ">
45+ < meta name ="theme-color " content ="#f5f8fc ">
46+
47+ < link rel ="stylesheet " href ="../../../static/pygments/default.css?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e ">
48+ <!-- <link rel="stylesheet" href="../../../static/css/root.css"> -->
49+
50+
51+
52+
53+
54+ < link href ="../../../static/kunai/css/kunai-stage-0.css?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e " rel ="stylesheet ">
55+ < link href ="../../../static/kunai/css/kunai-stage-1.css?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e " rel ="stylesheet ">
56+ < link href ="../../../static/kunai/css/kunai-stage-2.css?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e " rel ="stylesheet ">
57+ < link href ="../../../static/kunai/css/kunai-stage-3.css?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e " rel ="stylesheet ">
58+
59+ < script type ="text/javascript " src ="../../../static/kunai/js/kunai-vendor.js?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e "> </ script >
60+ < script type ="text/javascript " src ="../../../static/kunai/js/kunai.js?cachebust=2a7ddc62f9c987d65760cb7e6115f210c1266a7e "> </ script >
61+
62+ < script type ="text/javascript ">
63+ document . addEventListener ( 'DOMContentLoaded' , function ( ) {
64+ var kn = new Kunai ;
65+ kn . cpprefjp ( ) ;
66+ } ) ;
67+ </ script >
68+
69+ </ head >
70+ < body >
71+ < header data-kunai-mdinfo ="{"meta": {"header": ["execution"], "id-type": ["class template"], "namespace": ["std::execution"], "cpp": ["cpp26"]}, "sources": [], "page_id": ["reference", "execution", "execution", "env-promise"]} ">
72+ < nav class ="navbar navbar-default " role ="navigation ">
73+ < div class ="container-fluid ">
74+ < div class ="navbar-header ">
75+ < button type ="button " class ="navbar-toggle collapsed " data-toggle ="collapse " data-target ="#navbar-collapse ">
76+ < span class ="sr-only "> Toggle navigation</ span >
77+ < span class ="icon-bar "> </ span >
78+ < span class ="icon-bar "> </ span >
79+ < span class ="icon-bar "> </ span >
80+ </ button >
81+ < a class ="navbar-brand " href ="../../../index.html ">
82+ < div class ="title-wrapper clearfix ">
83+ < div class ="title "> cpprefjp - C++日本語リファレンス</ div >
84+ </ div >
85+ </ a >
86+ </ div >
87+
88+ < div class ="collapse navbar-collapse " id ="navbar-collapse ">
89+ < ul class ="nav navbar-nav navbar-right ">
90+ < li >
91+ < div class ="google-search ">
92+
93+
94+ < script >
95+ ( function ( ) {
96+ var cx = '013316413321391058734:ji_u66hl7hq' ;
97+ var gcse = document . createElement ( 'script' ) ;
98+ gcse . type = 'text/javascript' ;
99+ gcse . async = true ;
100+ gcse . src = ( document . location . protocol == 'https:' ? 'https:' : 'http:' ) +
101+ '//www.google.com/cse/cse.js?cx=' + cx ;
102+ var s = document . getElementsByTagName ( 'script' ) [ 0 ] ;
103+ s . parentNode . insertBefore ( gcse , s ) ;
104+ } ) ( ) ;
105+ </ script >
106+ < div class ="gcse-search "> </ div >
107+
108+
109+ </ div >
110+ </ li >
111+ < li >
112+ < a href ="https://github.com/cpprefjp/site "> GitHub Project</ a >
113+ </ li >
114+ </ ul >
115+ </ div >
116+ </ div >
117+ </ nav >
118+ </ header >
119+
120+ < main id ="main " role ="main ">
121+ < div class ="container-fluid ">
122+ < div class ="row ">
123+ < div class ="col-sm-9 col-sm-push-3 " itemscope itemtype ="http://schema.org/Article ">
124+ < div class ="row ">
125+ < div class ="col-sm-12 google-search-result ">
126+ < gcse:searchresults > </ gcse:searchresults >
127+ </ div >
128+ </ div >
129+ < div class ="row ">
130+ < div class ="col-sm-12 content-header ">
131+
132+ < ol class ="breadcrumb ">
133+
134+ < li itemscope itemtype ="http://www.schema.org/SiteNavigationElement ">
135+ < span >
136+
137+ < a href ="../../../index.html " itemprop ="url ">
138+
139+ < i class ="fa fa-fw fa-home "> </ i >
140+
141+ </ a >
142+
143+ </ span >
144+ </ li >
145+
146+ < li itemscope itemtype ="http://www.schema.org/SiteNavigationElement ">
147+ < span >
148+
149+ < a href ="../../../reference.html " itemprop ="url ">
150+
151+ < span itemprop ="name "> リファレンス</ span >
152+
153+ </ a >
154+
155+ </ span >
156+ </ li >
157+
158+ < li itemscope itemtype ="http://www.schema.org/SiteNavigationElement ">
159+ < span >
160+
161+ < a href ="../../../reference/execution.html " itemprop ="url ">
162+
163+ < span itemprop ="name "> execution</ span >
164+
165+ </ a >
166+
167+ </ span >
168+ </ li >
169+
170+ < li itemscope itemtype ="http://www.schema.org/SiteNavigationElement ">
171+ < span >
172+
173+ < a href ="../../../reference/execution/execution.html " itemprop ="url ">
174+
175+ < span itemprop ="name "> execution</ span >
176+
177+ </ a >
178+
179+ </ span >
180+ </ li >
181+
182+ < li class ="active " itemscope itemtype ="http://www.schema.org/SiteNavigationElement ">
183+ < span >
184+
185+
186+ < span itemprop ="name "> env-promise</ span >
187+
188+
189+ </ span >
190+ </ li >
191+
192+ </ ol >
193+ < div class ="crsearch "> </ div >
194+
195+ </ div >
196+ </ div >
197+ < div class ="row ">
198+ < div class ="col-sm-12 edit-button ">
199+
200+
201+ < p class ="text-right "> < small >
202+ 最終更新日時(UTC):
203+ < span itemprop ="datePublished " content ="2025-04-18T14:58:28 ">
204+ 2025年04月18日 14時58分28秒
205+ </ span >
206+ < br />
207+ < span itemprop ="author " itemscope itemtype ="http://schema.org/Person ">
208+ < span itemprop ="name "> yoh</ span >
209+ </ span >
210+ が更新
211+ </ small > </ p >
212+
213+
214+ < p class ="text-right ">
215+ < a class ="history " target ="_blank " href ="https://github.com/cpprefjp/site/commits/master/reference/execution/execution/env-promise.md ">
216+ < span class ="fa fa-fw fa-clock-o fa-flip-horizontal "> </ span > 履歴
217+ </ a >
218+ < a class ="edit " target ="_blank " href ="https://github.com/cpprefjp/site/edit/master/reference/execution/execution/env-promise.md ">
219+ < span class ="fa fa-fw fa-pencil "> </ span > 編集
220+ </ a >
221+ </ p >
222+ </ div >
223+ </ div >
224+ < div class ="row ">
225+ < div class ="col-sm-12 content-body ">
226+
227+ < div class ="identifier-type "> class template</ div > < div class ="header "> <execution></ div > < h1 itemprop ="name "> < span class ="namespace " title ="namespace std::execution "> std::execution::</ span > < span class ="token "> env-promise</ 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 "> Env</ span > < span class ="o "> ></ span >
230+ < span class ="k "> struct</ span > < span class ="n "> env</ span > < span class ="o "> -</ span > < span class ="nl "> promise</ span > < span class ="p "> :</ span > < span class ="n "> < a href ="with-await-transform.html "> with-await-transform</ a > </ span > < span class ="o "> <</ span > < span class ="n "> env</ span > < span class ="o "> -</ span > < span class ="n "> promise</ span > < span class ="o "> <</ span > < span class ="n "> Env</ span > < span class ="o "> >></ span > < span class ="p "> {</ span > < span class ="c1 "> // exposition only</ span >
231+ < span class ="n "> < i > unspecified</ i > </ span > < span class ="n "> get_return_object</ span > < span class ="p "> ()</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
232+ < span class ="n "> < i > unspecified</ i > </ span > < span class ="nf "> initial_suspend</ span > < span class ="p "> ()</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
233+ < span class ="n "> < i > unspecified</ i > </ span > < span class ="nf "> final_suspend</ span > < span class ="p "> ()</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
234+ < span class ="kt "> void</ span > < span class ="nf "> unhandled_exception</ span > < span class ="p "> ()</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
235+ < span class ="kt "> void</ span > < span class ="nf "> return_void</ span > < span class ="p "> ()</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
236+ < span class ="n "> < a href ="../../coroutine/coroutine_handle.html "> coroutine_handle<></ a > </ span > < span class ="nf "> unhandled_stopped</ span > < span class ="p "> ()</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
237+
238+ < span class ="k "> const</ span > < span class ="n "> Env</ span > < span class ="o "> &</ span > < span class ="n "> get_env</ span > < span class ="p "> ()</ span > < span class ="k "> const</ span > < span class ="k "> noexcept</ span > < span class ="p "> ;</ span >
239+ < span class ="p "> };</ span >
240+ < span class ="p "> }</ span >
241+ </ code > </ pre > </ div >
242+ </ p >
243+ < h2 > 概要</ h2 >
244+ < p > < code > env-promise</ 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クラステンプレートである。</ p >
245+ < h2 > 備考</ h2 >
246+ < p > < code > env-promise</ code > の特殊化は型導出のみで利用されるため、各メンバ関数の定義は必要ない。</ p >
247+ < h2 > バージョン</ h2 >
248+ < h3 > 言語</ h3 >
249+ < ul >
250+ < li > C++26</ li >
251+ </ ul >
252+ < h2 > 関連項目</ h2 >
253+ < ul >
254+ < li > < code > < a href ="sender.html "> execution::sender</ a > </ code > </ li >
255+ < li > < code > < a href ="get_completion_signatures.html "> execution::get_completion_signatures</ a > </ code > </ li >
256+ </ ul >
257+ < h2 > 参照</ h2 >
258+ < ul >
259+ < 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 >
260+ </ ul > </ div >
261+
262+ </ div >
263+ </ div >
264+ </ div >
265+
266+
267+ < div id ="sidebar " class ="col-sm-3 col-sm-pull-9 ">
268+ </ div >
269+
270+
271+ </ div >
272+ </ div >
273+ </ main >
274+ < footer class ="footer navbar navbar-default ">
275+ < div class ="container-fluid ">
276+ < p > < small >
277+ 本サイトの情報は、
278+ < a href ="https://creativecommons.org/licenses/by/3.0/deed.ja " rel ="nofollow "> クリエイティブ・コモンズ 表示 3.0 非移植 ライセンス(CC BY)</ a >
279+ の下に提供されています。
280+ </ small > </ p >
281+ </ div >
282+ </ footer >
283+ </ body >
284+ </ html >
0 commit comments