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std::atomic_fetch_and, std::atomic_fetch_and_explicit

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< cpp‎ | atomic

 
 
Atomare Operationen Bibliothek
Types
Original:
Types
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atomic(C++11)
atomic_is_lock_free(C++11)
Funktionen
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)
Atomic Fahnen
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)
Initialisierung
Original:
Initialization
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atomic_init(C++11)
ATOMIC_VAR_INIT(C++11)
ATOMIC_FLAG_INIT(C++11)
Speicher Bestellung
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)
 
Defined in header <atomic>
template< class Integral >
Integral atomic_fetch_and( std::atomic<Integral>* obj, Integral arg );
(1) (seit C++11)
template< class Integral >
Integral atomic_fetch_and( volatile std::atomic<Integral>* obj, Integral arg );
(2) (seit C++11)
template< class Integral >

Integral atomic_fetch_and_explicit( std::atomic<Integral>* obj, Integral arg,

                                    std::memory_order order);
(3) (seit C++11)
template< class Integral >

Integral atomic_fetch_and_explicit( volatile std::atomic<Integral>* obj, Integral arg,

                                    std::memory_order order);
(4) (seit C++11)
1-2)
Atomar ersetzt den Wert wies durch arg mit dem Ergebnis der bitweisen UND-Verknüpfung zwischen dem alten Wert obj und arg, und gibt den Wert obj statt zuvor, als ob durch obj->fetch_and(arg)
Original:
Atomically replaces the value pointed by arg with the result of bitwise AND 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)
Atomar ersetzt den Wert wies durch arg mit dem Ergebnis der bitweisen UND-Verknüpfung zwischen dem alten Wert obj und arg, und gibt den Wert obj statt zuvor, als ob durch obj->fetch_and(arg, order)
Original:
Atomically replaces the value pointed by arg with the result of bitwise AND 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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Inhaltsverzeichnis

[Bearbeiten] Parameter

obj -
Zeiger auf den atomaren Objekts zu ändern
Original:
pointer to the atomic object to modify
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arg -
der Wert auf bitweisen UND zu dem Wert in dem atomaren Objekt gespeichert
Original:
the value to bitwise AND to the value stored in the atomic object
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order -
der Speicher-Synchronisation Bestellung für diesen Vorgang: Alle Werte sind zulässig .
Original:
the memory synchronization ordering for this operation: all values are permitted.
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[Bearbeiten] Rückgabewert

Die zuvor von der atomaren Objekt gehalten, auf die obj
Original:
The value held previously by the atomic object pointed to by obj
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[Bearbeiten] Ausnahmen

noexcept specification:  
noexcept
  (seit C++11)

[Bearbeiten] Mögliche Implementierung

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

[Bearbeiten] Beispiel

[Bearbeiten] Siehe auch

(C++11)
atomar ausführt bitweisen UND zwischen dem Argument und dem Wert des atomaren Objekt und erhält den Wert gehalten zuvor
Original:
atomically performs bitwise AND between the argument and the value of the atomic object and obtains the value held previously
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(öffentliche Elementfunktion of std::atomic) [edit]
ersetzt das atomare Objekt mit dem Ergebnis der logischen ODER mit einem nicht-Atom Argument und erhält den vorherigen Wert des atomaren
Original:
replaces the atomic object with the result of logical OR with a non-atomic argument and obtains the previous value of the atomic
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(Funktions-Template) [edit]
ersetzt das atomare Objekt mit dem Ergebnis der logischen XOR mit einem nicht-Atom Argument und erhält den vorherigen Wert des atomaren
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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(Funktions-Template) [edit]
C documentation for atomic_fetch_and, atomic_fetch_and_explicit