Espacios de nombres
Variantes
Acciones

std::shared_future::valid

De cppreference.com

 
 
Tema Biblioteca de ayuda
Threads
Original:
Threads
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(C++11)
this_thread espacio de nombres
Original:
this_thread namespace
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(C++11)
(C++11)
(C++11)
Exclusión mutua
Original:
Mutual exclusion
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(C++11)
Gestión de bloqueos genérico
Original:
Generic lock management
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(C++11)
(C++11)
(C++11)
(C++11)(C++11)(C++11)
Las variables de condición
Original:
Condition variables
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(C++11)
Futuros
Original:
Futures
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(C++11)
(C++11)
(C++11)
(C++11)
 
std::shared_future
Las funciones miembro
Original:
Member functions
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Conseguir el resultado
Original:
Getting the result
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Estado
Original:
State
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shared_future::valid
 
bool valid() const;
(desde C++11)
Comprueba si el futuro se refiere a un estado compartido con una promesa. Este es el único caso de futuros devueltos por std::promise::get_future(), std::packaged_task::get_future() o std::async() hasta la primera vez que se llama get() .
Original:
Checks if the future refers to a state shared with a promise. This is the case only for futures returned by std::promise::get_future(), std::packaged_task::get_future() or std::async() until the first time get() is called.
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Contenido

[editar] Parámetros

(Ninguno)
Original:
(none)
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[editar] Valor de retorno

* true si esto se refiere a un estado compartido, de lo contrario false .
Original:
true if *this refers to a shared state, otherwise false.
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[editar] Excepciones

noexcept specification:  
noexcept
  (desde C++11)

[editar] Ejemplo

[editar] Ver también

espera a que el resultado esté disponible
Original:
waits for the result to become available
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(función miembro público) [editar]