std::atomic::operator++,++(int),--,--(int)

<metanoindex/>

 

C++

Suporte ao Compilador

Freestanding and hosted

Linguagem

Headers da Biblioteca Standard

Requerimentos nomeados

Feature test macros (C++20)

Biblioteca de suporte de língua

Biblioteca de conceitos (C++20)

Biblioteca de diagnósticos

Biblioteca de utilitários em geral

Biblioteca de strings

Biblioteca de containers

Ranges library (C++20)

Biblioteca de iteradores

Biblioteca de algorítmos

Biblioteca numérica

Biblioteca de localizações

Biblioteca de input/output

Biblioteca de sistema de arquivo (C++17)

Biblioteca de expressões regulares (C++11)

Biblioteca de operações atômicas (C++11)

Biblioteca de suporte de thread (C++11)

Especificações Técnicas

Índice de symbolos

Bibliotecas externas

 

Biblioteca operações atômica

Tipos 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)

Funções 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_storeatomic_store_explicit (C++11)(C++11)

atomic_loadatomic_load_explicit (C++11)(C++11)

atomic_exchangeatomic_exchange_explicit (C++11)(C++11)

atomic_compare_exchange_weakatomic_compare_exchange_weak_explicitatomic_compare_exchange_strongatomic_compare_exchange_strong_explicit (C++11)(C++11)(C++11)(C++11)

atomic_fetch_addatomic_fetch_add_explicit (C++11)(C++11)

atomic_fetch_subatomic_fetch_sub_explicit (C++11)(C++11)

atomic_fetch_andatomic_fetch_and_explicit (C++11)(C++11)

atomic_fetch_oratomic_fetch_or_explicit (C++11)(C++11)

atomic_fetch_xoratomic_fetch_xor_explicit (C++11)(C++11)

Bandeiras atômicas 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_setatomic_flag_test_and_set_explicit (C++11)(C++11)

atomic_flag_clearatomic_flag_clear_explicit (C++11)(C++11)

Inicialização 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)

Memória de encomenda 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

Funções de membro 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

Membro funções especializadas 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^=

 

<tbody> </tbody>

T operator++(); T operator++() volatile;	(1)	(único membro da atomic<Integral> especialização modelo) (desde C++11)
T* operator++(); T* operator++() volatile;	(1)	(único membro da atomic<T*> especialização modelo) (desde C++11)
T operator++( int ); T operator++( int ) volatile;	(2)	(único membro da atomic<Integral> especialização modelo) (desde C++11)
T* operator++( int ); T* operator++( int ) volatile;	(2)	(único membro da atomic<T*> especialização modelo) (desde C++11)
T operator--(); T operator--() volatile;	(3)	(único membro da atomic<Integral> especialização modelo) (desde C++11)
T* operator--(); T* operator--() volatile;	(3)	(único membro da atomic<T*> especialização modelo) (desde C++11)
T operator--( int ); T operator--( int ) volatile;	(4)	(único membro da atomic<Integral> especialização modelo) (desde C++11)
T* operator--( int ); T* operator--( int ) volatile;	(4)	(único membro da atomic<T*> especialização modelo) (desde C++11)

Atomicamente aumenta ou diminui o valor atual. A operação é ler-modificar-escrever operação.

Original:

Atomically increments or decrements the current value. The operation is read-modify-write operation.

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

1)

Executa atômica pós-incremento. Equivalente a fetch_add(1)+1.

Original:

Performs atomic post-increment. Equivalent to fetch_add(1)+1.

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

2)

Executa atômica pré-incremento. Equivalente a fetch_add(1).

Original:

Performs atomic pre-increment. Equivalent to fetch_add(1).

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

3)

Executa atômica pós-redução. Equivalente a fetch_sub(1)-1

Original:

Performs atomic post-decrement. Equivalent to fetch_sub(1)-1

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

4)

Executa atômica pré-decremento. Equivalente a fetch_sub(1).

Original:

Performs atomic pre-decrement. Equivalent to fetch_sub(1).

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

Para os tipos de Integral assinados, a aritmética é definida para usar dois representação de complemento. Lá

Original:

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

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

há resultados indefinidos. Para os tipos de T*, o resultado pode ser um endereço indefinido, mas as operações de outra forma não têm um comportamento indefinido.

Original:

are no undefined results. For T* types, the result may be an undefined address, but the operations otherwise have no undefined behavior.

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

Parâmetros

(Nenhum)

Original:

(none)

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

Valor de retorno

@ @ 1,3 O valor da variável atômica após a modificação.

Original:

@1,3@ The value of the atomic variable after the modification.

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

@ @ 2,4 O valor da variável atômica antes da modificação.

Original:

@2,4@ The value of the atomic variable before the modification.

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

Exceções

noexcept specification:  

<tbody> </tbody>

noexcept

  (desde C++11)

Veja também

operator+= operator-= operator&= operator|= operator^=	soma, subtrai, ou executa XOR bit a bit AND, OR, com o valor atômico Original: adds, subtracts, or performs bitwise AND, OR, XOR with the atomic value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função pública membro)