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    std::atomic::exchange

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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
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    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
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    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 exchange( T desired, memory_order = std::memory_order_seq_cst );
    		 (depuis C++11)
    T exchange( T desired, memory_order = std::memory_order_seq_cst ) volatile;
    		 (depuis C++11)
    Remplace la valeur sous-jacente atomique avec desired. L'opération est de lecture-modification-écriture. La mémoire est affectée en fonction de la valeur de memory_order .
    Original:
    Atomically replaces the underlying value with desired. The operation is read-modify-write operation. Memory is affected according to the value of memory_order.
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    Paramètres

    desired -
    valeur à assigner
    Original:
    value to assign
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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)
    remplace atomiquement la valeur de l'objet atomique avec des non-atomique argument et retourne l'ancienne valeur de l'atomique
    Original:
    atomically replaces the value of the atomic object with non-atomic argument and returns the old value of the atomic
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    (fonction générique) [edit]