std::atomic::fetch_add

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C++

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Algorithmen-Bibliothek

Iteratoren Bibliothek

Numerik-Bibliothek

Input / Output-Bibliothek

Lokalisierungen Bibliothek

Reguläre Ausdrücke Bibliothek (C++11)

Atomare Operationen Bibliothek (C++11)

Thread Support-Bibliothek (C++11)

 

Atomare Operationen Bibliothek

Types 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)

Funktionen 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)

Atomic Fahnen 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)

Initialisierung 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)

Speicher Bestellung 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)

 

std::atomic

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

atomic::atomic

atomic::operator=

atomic::is_lock_free

atomic::store

atomic::load

atomic::operator T

atomic::exchange

atomic::compare_exchange

Specialized Member-Funktionen Original: Specialized member functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

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^=

 

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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;		(Mitglied nur atomic<Integral> Template-Spezialisierung) (seit 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;		(Mitglied nur atomic<T*> Template-Spezialisierung) (seit C++11)

Atomar ersetzt die aktuelle Wert mit dem Ergebnis von arithmetischen Addition des Wertes und arg. Die Bedienung ist Lese-Modifizier-Schreib-Vorgang. Speichermodul gemäß dem Wert des betroffenen 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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Für signierte Integral Typen wird Arithmetik definiert Zweierkomplementdarstellung verwenden. There

Original:

For signed Integral types, arithmetic is defined to use two’s complement representation. There

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keine undefinierten Ergebnissen. Für T* Typen, kann das Ergebnis eine undefinierte Adresse, aber die Operationen sonst keine undefinierten Verhalten .

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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Parameter

arg	-	das andere Argument der Arithmetik hinaus Original: the other argument of arithmetic addition The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
memory_order	-	Speicher, um Einschränkungen zu erzwingen Original: memory order constraints to enforce The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Rückgabewert

Der Wert des atomaren Variable vor dem Anruf .

Original:

The value of the atomic variable before the call.

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Ausnahmen

noexcept specification:  

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noexcept

  (seit C++11)

Siehe auch

atomic_fetch_add atomic_fetch_add_explicit (C++11) (C++11)	fügt eine nicht-elementare Wert einem atomaren Objekt und erhält den vorherigen Wert des atomaren Original: adds a non-atomic value to an atomic object and obtains the previous value of the atomic The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (Funktions-Template)