Varianti

    std::atomic_fetch_or, std::atomic_fetch_or_explicit

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    <metanoindex/>

     
    C++
     
    Atomic operazioni di biblioteca
    Tipi
    Original:
    Types
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    atomic(C++11)
    atomic_is_lock_free(C++11)
    Funzioni
    Original:
    Functions
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    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
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    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
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    atomic_init(C++11)
    ATOMIC_VAR_INIT(C++11)
    ATOMIC_FLAG_INIT(C++11)
    Memoria di ordinazione
    Original:
    Memory ordering
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    memory_order(C++11)
    kill_dependency(C++11)
    atomic_thread_fence(C++11)
    atomic_signal_fence(C++11)
     
    <tbody> </tbody>
    Elemento definito nell'header <atomic>
    template< class Integral > Integral atomic_fetch_or( std::atomic<Integral>* obj, Integral arg );
    		 (1) (dal C++11)
    template< class Integral > Integral atomic_fetch_or( volatile std::atomic<Integral>* obj, Integral arg );
    		 (2) (dal C++11)
    template< class Integral > Integral atomic_fetch_or_explicit( std::atomic<Integral>* obj, Integral arg, std::memory_order order );
    		 (3) (dal C++11)
    template< class Integral > Integral atomic_fetch_or_explicit( volatile std::atomic<Integral>* obj, Integral arg, std::memory_order order );
    		 (4) (dal C++11)

    1-2)

    Sostituisce atomico il valore puntato dal arg con il risultato di OR bit a bit tra il valore storico di obj e arg, e restituisce il valore obj precedentemente detenuta, come per obj->fetch_and(arg)
    Original:
    Atomically replaces the value pointed by arg with the result of bitwise OR between the old value of obj and arg, and returns the value obj held previously, as if by obj->fetch_and(arg)
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    3-4)

    Sostituisce atomico il valore puntato dal arg con il risultato di OR bit a bit tra il valore storico di obj e arg, e restituisce il valore obj precedentemente detenuta, come per obj->fetch_and(arg, order)
    Original:
    Atomically replaces the value pointed by arg with the result of bitwise OR between the old value of obj and arg, and returns the value obj held previously, as if by obj->fetch_and(arg, order)
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    Parametri

    obj -
    puntatore all'oggetto atomica da modificare
    Original:
    pointer to the atomic object to modify
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    arg -
    il valore di OR bit per bit al valore memorizzato nell'oggetto atomica
    Original:
    the value to bitwise OR to the value stored in the atomic object
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    order -
    sycnhronization la memoria di ordinazione per questa operazione: tutti i valori sono consentiti .
    Original:
    the memory sycnhronization ordering for this operation: all values are permitted.
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    Valore di ritorno

    Il valore contenuto in precedenza dall'oggetto atomico puntato da obj
    Original:
    The value held previously by the atomic object pointed to by obj
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    Eccezioni

    noexcept specification:  
    <tbody> </tbody>
    noexcept
      (dal C++11)

    Possibile implementazione

    template< class T >
typename std::enable_if<std::is_integral<T>::value && !std::is_same<T, bool>::value, T>::type
atomic_fetch_or( std::atomic<T>* obj, T arg );
{
    return obj->fetch_or(arg);
}

    Esempio

    This section is incomplete
    Reason: no example

    Vedi anche

    (C++11)
    		 esegue atomicamente l'OR bit a bit tra l'argomento e il valore dell'oggetto atomico e ottiene il valore contenuto precedentemente
    (metodo pubblico) [modifica]
    (C++11)
    (C++11)
    sostituisce l'oggetto atomico con il risultato di AND logico con un non-atomico argomento e ottiene il valore precedente della atomico
    Original:
    replaces the atomic object with the result of logical AND with a non-atomic argument and obtains the previous value of the atomic
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    (funzione di modello) [modifica]
    (C++11)
    (C++11)
    sostituisce l'oggetto atomico con il risultato di logica XOR con un non-atomico argomento e ottiene il valore precedente della atomico
    Original:
    replaces the atomic object with the result of logical XOR with a non-atomic argument and obtains the previous value of the atomic
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    (funzione di modello) [modifica]
    C documentation for atomic_fetch_or, atomic_fetch_or_explicit
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