std::atomic::fetch_or
STD：：原子：：获取[医]或
| | | (since C++11) (member only of atomic |
|---|---|---|
| T fetch_or( T arg, std::memory_order order = std::memory_order_seq_cst | | |
| T fetch_or( T arg, std::memory_order order = std::memory_order_seq_cst ) volatile; | | |
将当前值替换为值的按位OR的结果，arg.操作是读-修改-写操作.。的值影响内存。order...
参数
| arg | - | the other argument of bitwise OR |
|---|---|---|
| order | - | memory order constraints to enforce |
返回值
中此函数的效果之前的值。修改顺序成*this...
例外
noexcept规格：
noexcept
另见
| atomic_fetch_oratomic_fetch_or_explicit (C++11)(C++11) | replaces the atomic object with the result of logical OR with a non-atomic argument and obtains the previous value of the atomic (function template) |
|---|
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