atomic_fetch_or, atomic_fetch_or_explicit
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<metanoindex/>
<tbody> </tbody>| Definido no cabeçalho <stdatomic.h>
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C atomic_fetch_or( volatile A* obj, M arg ); |
(1) | |
C atomic_fetch_or_explicity( volatile A* obj, M arg, memory_order order ); |
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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.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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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.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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Parâmetros
| obj | - | ponteiro para o objeto atômico modificar
Original: pointer to the atomic object to modify The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| 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 The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| 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 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
O valor realizado anteriormente ser objeto atômico apontado por
obj.Original:
The value held previously be the atomic object pointed to by
obj.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Veja também
atômica OU lógico Original: atomic logical OR The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) | |
atômica exclusivo OU lógico Original: atomic logical exclusive OR The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) | |
C++ documentation for atomic_fetch_or, atomic_fetch_or_explicit
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