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std::future_errc

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Threads
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thread(C++11)
this_thread namespace
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this_thread namespace
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get_id(C++11)
yield(C++11)
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Exclusão mútua
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Mutual exclusion
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mutex(C++11)
timed_mutex(C++11)
Gestão de bloqueio genérico
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Generic lock management
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lock_guard(C++11)
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(C++11)
(C++11)
lock(C++11)
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Futuros
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Futures
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promise(C++11)
future(C++11)
shared_future(C++11)
packaged_task(C++11)
async(C++11)
launch(C++11)
future_status(C++11)
future_error(C++11)
future_category(C++11)
future_errc(C++11)
 
std::future_errc
Classes auxiliares
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Helper classes
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is_error_code_enum
Não-membros funções
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Non-member functions
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make_error_code
make_error_condition
 
Defined in header <ios>
enum class future_errc {

    broken_promise,
    future_already_retrieved,
    promise_already_satisfied,
    no_state

};
(a partir do 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.

Índice

[editar] Constantes de membros

Constante
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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] Classes auxiliares

extends the type trait std::is_error_code_enum to identify future error codes
(modelo de classe)

[editar] Não-membros funções

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

[editar] Exemplo

[editar] Veja também

possui um código de erro depende da plataforma
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holds a platform-dependent error code
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(classe) [edit]
possui um código de erro portátil
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holds a portable error code
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(classe) [edit]