atomic_fetch_or, atomic_fetch_or_explicit
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| Defined in header <stdatomic.h>
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| C atomic_fetch_or( volatile A* obj, M arg ); |
(1) | （C11 起） |
| C atomic_fetch_or_explicity( volatile A* obj, M arg, memory_order order ); |
(2) | （C11 起） |
原子取代所指向的数值
obj的结果按位OR之间的旧值objarg，并返回以前的价值obj举行。该操作是读 - 修改 - 写操作。根据memory_order_seq_cst的第一个版本订单的内存访问，第二个版本的订单内存访问，根据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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这是一个通用函数定义的所有原子的对象类型。
A是一个原子对象的类型，M非原子类型对应的AA是原子的整数类型，或ptrdiff_tA是原子的指针类型.Original:
This is a 通用函数 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.
You can help to correct and verify the translation. Click here for instructions.
[编辑] 参数
| obj | - | 指针的原子对象修改
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 | - | 位或存储的值的原子对象的价值
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 | - | 内存同步进行此操作的顺序：所有的允许值
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. |
[编辑] 返回值
保存的值是原子对象所指向的
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.
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[编辑] 另请参阅
| atomic_fetch_or atomic_fetch_or_explicit （C11） |
原子逻辑OR 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. （函数） |
| 原子的逻辑“异或” 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. （函数） | |
| C++ documentation for atomic_fetch_or, atomic_fetch_or_explicit
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