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    std::atomic::fetch_add

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    <metanoindex/>

     
    C++
     
    Atomique opérations de la bibliothèque
    Types
    Original:
    Types
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    atomic (C++11)
    atomic_is_lock_free (C++11)
    Fonctions
    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)
    Drapeaux atomiques
    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)
    Initialisation
    Original:
    Initialization
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    atomic_init (C++11)
    ATOMIC_VAR_INIT (C++11)
    ATOMIC_FLAG_INIT (C++11)
    Mémoire de la commande
    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)
     
    std::atomic
    Les fonctions membres
    Original:
    Member functions
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    atomic::atomic
    atomic::operator=
    atomic::is_lock_free
    atomic::store
    atomic::load
    atomic::operator T
    atomic::exchange
    atomic::compare_exchange
    Fonctions membres spécialisés
    Original:
    Specialized member functions
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    atomic::fetch_add
    atomic::fetch_sub
    atomic::fetch_and
    atomic::fetch_or
    atomic::fetch_xor
    atomic::operator++
    atomic::operator++(int)
    atomic::operator--
    atomic::operator--(int)
    atomic::operator+=
    atomic::operator-=
    atomic::operator&=
    atomic::operator|=
    atomic::operator^=
     
    <tbody> </tbody>
    T fetch_add( T arg, memory_order = std::memory_order_seq_cst ); T fetch_add( T arg, memory_order = std::memory_order_seq_cst ) volatile;
    		 (
    seul membre de spécialisation de template atomic<Integral>
    Original:
    member only of atomic<Integral> template specialization
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    )
    (depuis C++11)
    T* fetch_add( std::ptrdiff_t arg, memory_order = std::memory_order_seq_cst ); T* fetch_add( std::ptrdiff_t arg, memory_order = std::memory_order_seq_cst ) volatile;
    		 (
    seul membre de spécialisation de template atomic<T*>
    Original:
    member only of atomic<T*> template specialization
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    )
    (depuis C++11)
    Atomiquement remplace la valeur actuelle du résultat de l'addition arithmétique de la valeur et arg. L'opération est de lecture-modification-écriture. La mémoire est affectée en fonction de la valeur de memory_order .
    Original:
    Atomically replaces the current value with the result of arithmetic addition of the value and arg. The operation is read-modify-write operation. Memory is affected according to the value of memory_order.
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    Pour les types de Integral signés, l'arithmétique est défini pour utiliser la représentation en complément à deux. Il
    Original:
    For signed Integral types, arithmetic is defined to use two’s complement representation. There
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    n'y a pas de résultats indéfinis. Pour les types de T*, le résultat peut être une adresse définie, mais les opérations n'ont autrement pas de comportement indéfini .
    Original:
    are no undefined results. For T* types, the result may be an undefined address, but the operations otherwise have no undefined behavior.
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    Paramètres

    arg -
    l'autre argument de addition arithmétique
    Original:
    the other argument of arithmetic addition
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    memory_order -
    contraintes d'ordre pour faire respecter la mémoire
    Original:
    memory order constraints to enforce
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    Retourne la valeur

    La valeur de la variable atomique avant l'appel .
    Original:
    The value of the atomic variable before the call.
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    Exceptions

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

    Voir aussi

    (C++11)
    (C++11)
    ajoute une valeur non atomique à un objet atomique et obtient la valeur précédente de l'atome
    Original:
    adds a non-atomic value to an atomic object and obtains the previous value of the atomic
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    (fonction générique) [edit]