Espaços nominais
Variantes
Acções

atomic_fetch_or, atomic_fetch_or_explicit

Da cppreference.com
< c‎ | atomic

 
 
Biblioteca operações atômica
Tipos
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Types
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memory_order
atomic_flag
Macros
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Macros
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ATOMIC_***_LOCK_FREE
ATOMIC_FLAG_INIT
ATOMIC_VAR_INIT
kill_dependency
Funções
Original:
Functions
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atomic_flag_test_and_set
atomic_flag_clear
atomic_init
atomic_is_lock_free
atomic_store
atomic_load
atomic_exchange
atomic_compare_exchange
atomic_fetch_add
atomic_fetch_sub
atomic_fetch_or
atomic_fetch_xor
atomic_fetch_and
atomic_thread_fence
atomic_signal_fence
 
Defined in header <stdatomic.h>
C atomic_fetch_or( volatile A* obj, M arg );
(1)
C atomic_fetch_or_explicity( volatile A* obj, M arg, memory_order order );
(2)
Atomicamente substitui o valor apontado por obj com o resultado do OR bit a bit entre o valor antigo de obj e arg, e retorna o valor obj realizada anteriormente. A operação é ler-modificar-escrever a operação. A primeira versão de memória acessa ordens de acordo com memory_order_seq_cst, a segunda versão de memória acessa ordens de acordo com order.
Original:
Atomically replaces the value pointed by obj with the result of bitwise OR between the old value of obj and arg, and returns the value obj held previously. The operation is read-modify-write operation. The first version orders memory accesses according to memory_order_seq_cst, the second version orders memory accesses according to order.
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Esta é uma função genérica definida para todos os tipos de objectos atómicos. A é o tipo de um objeto atômico, M ou é do tipo não-atômica correspondente a A se A é tipo inteiro atômica, ou ptrdiff_t se A é tipo ponteiro atômica.
Original:
This is a função genérica defined for all atomic object types. A is the type of an atomic object, M is either the non-atomic type corresponding to A if A is atomic integer type, or ptrdiff_t if A is atomic pointer type.
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[editar] Parâmetros

obj -
ponteiro para o objeto atômico modificar
Original:
pointer to the atomic object to modify
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arg -
o valor para OR bit a bit com o valor armazenado no objeto atômico
Original:
the value to bitwise OR to the value stored in the atomic object
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order -
a sincronização da memória de ordenação para esta operação: todos os valores são permitidos
Original:
the memory synchronization ordering for this operation: all values are permitted
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[editar] Valor de retorno

O valor realizado anteriormente ser objeto atômico apontado por obj.
Original:
The value held previously be the atomic object pointed to by obj.
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[editar] Veja também

atomic_fetch_or
atomic_fetch_or_explicit
(C11)
atômica OU lógico
Original:
atomic logical OR
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(função) [edit]
atômica exclusivo OU lógico
Original:
atomic logical exclusive OR
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(função) [edit]
C++ documentation for atomic_fetch_or, atomic_fetch_or_explicit