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「cpp/thread/future errc」の版間の差分

提供: cppreference.com
< cpp‎ | thread
細 (r2.7.3) (ロボットによる 追加: de, en, es, fr, it, pt, ru, zh)
細 (Use {{lc}}. Update links. Various fixes.)
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{{cpp/title|future_errc}}
 
{{cpp/title|future_errc}}
 
{{cpp/thread/future_errc/navbar}}
 
{{cpp/thread/future_errc/navbar}}
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{{ddcl list begin}}
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{{begin}}
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{{ddcl list header | ios}}
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{{header | ios}}
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{{ddcl list item | notes={{mark since c++11}} | 1=
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{{| =c++11 | 1=
 
enum class future_errc {
 
enum class future_errc {
 
     broken_promise,
 
     broken_promise,
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};
 
};
 
}}
 
}}
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{{ddcl list end}}
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{{end}}
  
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The scoped enumeration {{tt|std::future_errc}} defines the error codes reported by {{c|std::future}} and related classes in {{c|std::future_error}} exception objects. Only four error codes are required, although the implementation may define additional error codes. Because the appropriate specialization of std::is_error_code_enum is provided, values of type {{tt|std::future_errc}} are implicitly convertible to {{c|std::error_code}}.
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The scoped enumeration {{tt|std::future_errc}} defines the error codes reported by {{|std::future}} and related classes in {{|std::future_error}} exception objects. Only four error codes are required, although the implementation may define additional error codes. Because the appropriate specialization of std::is_error_code_enum is provided, values of type {{tt|std::future_errc}} are implicitly convertible to {{|std::error_code}}.
  
 
===メンバー定数===
 
===メンバー定数===
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{{dcl list begin}}
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{{begin}}
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{{dcl list hitem |{{tr| 定数 | Constant }}| Explanation}}
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{{hitem |{{tr| 定数 | Constant }}| Explanation}}
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{{dcl list item | {{tt|broken_promise}} |  the asynchronous task abandoned its shared state }}
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{{| {{tt|broken_promise}} |  the asynchronous task abandoned its shared state }}
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{{dcl list item | {{tt|future_already_retrieved}} | the contents of shared state were already accessed through {{c|std::future}} }}
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{{| {{tt|future_already_retrieved}} | the contents of shared state were already accessed through {{|std::future}} }}
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{{dcl list item | {{tt|promise_already_satisfied}} |  attempt to store a value in the shared state twice }}
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{{| {{tt|promise_already_satisfied}} |  attempt to store a value in the shared state twice }}
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{{dcl list item | {{tt|no_state}} | attempt to access {{c|std::promise}} or {{c|std::future}} without an associated shared state }}
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{{| {{tt|no_state}} | attempt to access {{|std::promise}} or {{|std::future}} without an associated shared state }}
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{{dcl list end}}
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{{end}}
  
 
===ヘルパークラス===
 
===ヘルパークラス===
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{{dcl list begin}}
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{{begin}}
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{{dcl list tclass | cpp/thread/future_errc/is_error_code_enum  | title=is_error_code_enum{{dcl small|<std::future_errc>}}| notes={{mark c++11}} | extends the type trait {{c|std::is_error_code_enum}} to identify future error codes}}
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{{tclass | cpp/thread/future_errc/is_error_code_enum  | title=is_error_code_enum{{small|<std::future_errc>}}| notes={{mark c++11}} | extends the type trait {{|std::is_error_code_enum}} to identify future error codes}}
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{{dcl list end}}
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{{end}}
  
 
===非メンバ関数===
 
===非メンバ関数===
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{{dcl list begin}}
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{{begin}}
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{{dcl list fun | cpp/thread/future_errc/make_error_code | title=make_error_code{{dcl small|(std::future_errc)}} | notes={{mark c++11}} | constructs a future error code}}
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{{fun | cpp/thread/future_errc/make_error_code | title=make_error_code{{small|(std::future_errc)}} | notes={{mark c++11}} | constructs a future error code}}
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{{dcl list fun | cpp/thread/future_errc/make_error_condition  | title=make_error_condition{{dcl small|(std::future_errc)}} | notes={{mark c++11}} | constructs a future error_condition}}
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{{fun | cpp/thread/future_errc/make_error_condition  | title=make_error_condition{{small|(std::future_errc)}} | notes={{mark c++11}} | constructs a future error_condition}}
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{{dcl list end}}
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{{end}}
  
 
===例===
 
===例===
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===も参照してください===
 
===も参照してください===
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{{dcl list begin}}
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{{begin}}
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{{dcl list template | cpp/error/dcl list error_code}}
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{{| cpp/error/error_code}}
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{{dcl list template | cpp/error/dcl list error_condition}}
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{{| cpp/error/error_condition}}
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{{dcl list end}}
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{{end}}
  
 
[[de:cpp/thread/future errc]]
 
[[de:cpp/thread/future errc]]

2013年7月2日 (火) 16:05時点における版

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future_errc
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std::future_errc
非メンバクラス
ヘルパークラス
 
ヘッダ <ios> で定義
enum class future_errc {

    broken_promise,
    future_already_retrieved,
    promise_already_satisfied,
    no_state

};
 (C++11以上)

The scoped enumeration std::future_errc defines the error codes reported by std::future and related classes in std::future_error exception objects. Only four error codes are required, although the implementation may define additional error codes. Because the appropriate specialization of std::is_error_code_enum is provided, values of type std::future_errc are implicitly convertible to std::error_code.

目次

メンバー定数

定数
Original:
Constant
The text has been machine-translated via Google Translate.
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 Explanation
broken_promise the asynchronous task abandoned its shared state
future_already_retrieved the contents of shared state were already accessed through std::future
promise_already_satisfied attempt to store a value in the shared state twice
no_state attempt to access std::promise or std::future without an associated shared state

ヘルパークラス

(C++11)
 extends the type trait std::is_error_code_enum to identify future error codes
(クラステンプレート)

非メンバ関数

(C++11)
 constructs a future error code
(関数)
(C++11)
 constructs a future error_condition
(関数)

例

This section is incomplete
Reason: no example

も参照してください

(C++11)
 プラットフォーム依存のエラーコードを保持します
(クラス) [edit]
(C++11)
 移植性のあるエラーコードを保持します
(クラス) [edit]
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