std::atomic_init

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C++

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Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

Atomic operazioni di biblioteca

Tipi Original: Types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

atomic (C++11)

atomic_is_lock_free (C++11)

Funzioni Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

atomic_store atomic_store_explicit (C++11) (C++11)

atomic_load atomic_load_explicit (C++11) (C++11)

atomic_exchange atomic_exchange_explicit (C++11) (C++11)

atomic_compare_exchange_weak atomic_compare_exchange_weak_explicit atomic_compare_exchange_strong atomic_compare_exchange_strong_explicit (C++11) (C++11) (C++11) (C++11)

atomic_fetch_add atomic_fetch_add_explicit (C++11) (C++11)

atomic_fetch_sub atomic_fetch_sub_explicit (C++11) (C++11)

atomic_fetch_and atomic_fetch_and_explicit (C++11) (C++11)

atomic_fetch_or atomic_fetch_or_explicit (C++11) (C++11)

atomic_fetch_xor atomic_fetch_xor_explicit (C++11) (C++11)

Bandiere Atomic Original: Atomic flags The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

atomic_flag (C++11)

atomic_flag_test_and_set atomic_flag_test_and_set_explicit (C++11) (C++11)

atomic_flag_clear atomic_flag_clear_explicit (C++11) (C++11)

Inizializzazione Original: Initialization The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

atomic_init (C++11)

ATOMIC_VAR_INIT (C++11)

ATOMIC_FLAG_INIT (C++11)

Memoria di ordinazione Original: Memory ordering The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

memory_order (C++11)

kill_dependency (C++11)

atomic_thread_fence (C++11)

atomic_signal_fence (C++11)

 

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Elemento definito nell'header <atomic>
template< class T > void atomic_init( std::atomic<T>* obj, T desired );
template< class T > void atomic_init( volatile std::atomic<T>* obj, T desired );

Inizializza il default-costruito object oggetto atomico con il desired valore. La funzione non è atomica: l'accesso concorrente da un altro thread, anche attraverso un'operazione atomica, è una gara di dati.

Original:

Initializes the default-constructed atomic object object with the value desired. The function is not atomic: concurrent access from another thread, even through an atomic operation, is a data race.

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Se non fosse obj default-costruito, il comportamento non è definito.

Original:

If obj was not default-constructed, the behavior is undefined.

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Se questa funzione viene chiamata due volte sul obj stessa, il comportamento non è definito.

Original:

If this function is called twice on the same obj, the behavior is undefined.

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Parametri

obj	-	puntatore ad un oggetto atomico per inizializzare Original: pointer to an atomic object to initialize The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
desired	-	il valore per inizializzare oggetto atomico Original: the value to initialize atomic object with The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

(Nessuno)

Original:

(none)

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Eccezioni

noexcept specification:  

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noexcept

  (dal C++11)

Note

Questa funzione è prevista per la compatibilità con C. Se la compatibilità non è necessario, std::atomic possono essere inizializzate attraverso i loro costruttori non predefiniti.

Original:

This function is provided for compatibility with C. If the compatibility is not required, std::atomic may be initialized through their non-default constructors.

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Vedi anche

ATOMIC_VAR_INIT (C++11)	inizializzazione di una variabile costante atomico di durata immagazzinamento statico Original: constant initialization of an atomic variable of static storage duration The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione macro)
(costruttore)	costruisce un oggetto atomico Original: constructs an atomic object The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)
C documentation for atomic_init