std::shared_future::valid

 

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std::shared_future

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shared_future::shared_future

shared_future::~shared_future

shared_future::operator=

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shared_future::get

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shared_future::valid

shared_future::wait

shared_future::wait_for

shared_future::wait_until

 

bool valid()const;		(dal C++11)

Controlla se il futuro si riferisce ad uno stato condiviso con una promessa. Questo è l'unico caso di futures restituiti da std::promise::get_future(), std::packaged_task::get_future()std::async() o fino a quando la prima volta get() si chiama.

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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Parametri

(Nessuno)

Original:

(none)

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Valore di ritorno

true * se si riferisce ad uno stato comune, altrimenti false.

Original:

true if *this refers to a shared state, otherwise false.

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Eccezioni

noexcept specification:  

noexcept

  (dal C++11)

Vedi anche

wait	attende il risultato diventi disponibile Original: waits for the result to become available The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)