Espaços nominais
Variantes
Acções

std::atomic::fetch_and

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< cpp‎ | atomic‎ | atomic

 
 
Biblioteca operações atômica
Tipos
Original:
Types
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atomic(C++11)
atomic_is_lock_free(C++11)
Funções
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)
Bandeiras atômicas
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)
Inicialização
Original:
Initialization
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atomic_init(C++11)
ATOMIC_VAR_INIT(C++11)
ATOMIC_FLAG_INIT(C++11)
Memória de encomenda
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
Funções de membro
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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
Membro funções especializadas
Original:
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^=
 
T fetch_and( T arg,

             memory_order = std::memory_order_seq_cst );
T fetch_and( T arg,

             memory_order = std::memory_order_seq_cst ) volatile;
(único membro da atomic<Integral> especialização modelo)
(a partir do C++ 11)
Atomicamente substitui o valor atual com o resultado de bitwise do valor e arg. A operação é ler-modificar-escrever a operação. A memória é afectada de acordo com o valor de memory_order.
Original:
Atomically replaces the current value with the result of bitwise AND 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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Índice

[editar] Parâmetros

arg -
o outro argumento de bit a bit AND
Original:
the other argument of bitwise AND
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memory_order -
restrições de ordem memória de aplicar
Original:
memory order constraints to enforce
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[editar] Valor de retorno

O valor da variável atómica antes da chamada.
Original:
The value of the atomic variable before the call.
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[editar] Exceções

noexcept specification:  
noexcept
  (a partir do C++ 11)

[editar] Veja também

substitui o objeto atômico com o resultado da lógica e com um argumento não-atômico e obtém o valor anterior do nuclear
Original:
replaces the atomic object with the result of logical AND with a non-atomic argument and obtains the previous value of the atomic
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(modelo de função) [edit]