std::atomic::operator+=,-=,&=,|=,^=

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C++

Linguaggio

Concetti

Libreria di Utilità

Stringhe

Contenitori

Algoritmi

Iteratori

Libreria matematca

Input/output

Localizzazione

Espressioni regolari (C++11)

Operazioni atomicche (C++11)

Multithreading (C++11)

 

Atomic operazioni di biblioteca

Tipi 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)

Funzioni 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)

Bandiere Atomic 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)

Inizializzazione 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)

Memoria di ordinazione 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

Membri funzioni 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

Funzioni membro specializzati 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 operator+=( T arg ); T operator+=( T arg ) volatile;	(1)	(unico membro del modello di specializzazione atomic<Integral>) (dal C++11)
T* operator+=( std::ptrdiff_t arg ); T* operator+=( std::ptrdiff_t arg ) volatile;	(1)	(unico membro del modello di specializzazione atomic<T*>) (dal C++11)
T operator-=( T arg ); T operator-=( T arg ) volatile;	(2)	(unico membro del modello di specializzazione atomic<Integral>) (dal C++11)
T* operator-=( std::ptrdiff_t arg ); T* operator-=( std::ptrdiff_t arg ) volatile;	(2)	(unico membro del modello di specializzazione atomic<T*>) (dal C++11)
T operator&=( T arg ); T operator&=( T arg ) volatile;	(3)	(unico membro del modello di specializzazione atomic<Integral>) (dal C++11)
T operator|=( T arg ); T operator|=( T arg ) volatile;	(4)	(unico membro del modello di specializzazione atomic<Integral>) (dal C++11)
T operator^=( T arg ); T operator^=( T arg ) volatile;	(5)	(unico membro del modello di specializzazione atomic<Integral>) (dal C++11)

Atomicamente sostituisce il valore corrente con il risultato di computazione coinvolge il valore precedente e arg. L'operazione è lettura-modifica-scrittura.

Original:

Atomically replaces the current value with the result of computation involving the previous value and arg. The operation is read-modify-write operation.

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1)

Esegue inoltre atomica. Equivalente a fetch_add(arg).

Original:

Performs atomic addition. Equivalent to fetch_add(arg).

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2)

Esegue atomica sottrazione. Equivalente a fetch_sub(arg).

Original:

Performs atomic subtraction. Equivalent to fetch_sub(arg).

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3)

Esegue atomica e bit per bit. Equivalente a fetch_and(arg).

Original:

Performs atomic bitwise and. Equivalent to fetch_and(arg).

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4)

Esegue atomico o bit per bit. Equivalente a fetch_or(arg).

Original:

Performs atomic bitwise or. Equivalent to fetch_or(arg).

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5)

Esegue atomico bit per bit esclusivo o. Equivalente a fetch_xor(arg).

Original:

Performs atomic bitwise exclusive or. Equivalent to fetch_xor(arg).

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Per i tipi di Integral firmati, l'aritmetica è definito l'utilizzo di due rappresentazione in complemento. Ecco

Original:

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

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sono risultati non definiti. Per i tipi T*, il risultato può essere un indirizzo definito, ma le operazioni altrimenti non hanno un comportamento indefinito.

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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Parametri

arg

-

l'argomento per l'operazione aritmetica Original: the argument for the arithmetic operation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Valore di ritorno

Il valore risultante.

Original:

The resulting value.

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Eccezioni

noexcept specification:  

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noexcept

  (dal C++11)

Vedi anche

operator++ operator++(int) operator-- operator--(int)	incrementa o decrementa il valore atomico di uno Original: increments or decrements the atomic value by one The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico)