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std::future_errc

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Tema Biblioteca de ayuda
Threads
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Threads
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this_thread espacio de nombres
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this_thread namespace
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Exclusión mutua
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Mutual exclusion
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Gestión de bloqueos genérico
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Generic lock management
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Las variables de condición
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Condition variables
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Futuros
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Futures
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future_errc
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std::future_errc
Clases de ayuda
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Helper classes
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Terceros funciones
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Non-member functions
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Definido en la cabecera <ios>
enum class future_errc {

    broken_promise,
    future_already_retrieved,
    promise_already_satisfied,
    no_state

};
(desde C++11)

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.

Contenido

[editar] Constantes de miembros

Constant
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Constant
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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

[editar] Clases de ayuda

extends the type trait std::is_error_code_enum to identify future error codes
(plantilla de clase)

[editar] Terceros funciones

constructs a future error code
(función)
constructs a future error_condition
(función)

[editar] Ejemplo

[editar] Ver también

tiene un código de error dependiente de la plataforma
Original:
holds a platform-dependent error code
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(clase) [editar]
tiene un código de error portátil
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holds a portable error code
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(clase) [editar]