(since C++11) (member only of `atomic<` template specialization) | ||

T fetch_xor( T arg, std::memory_order order = std::memory_order_seq_cst ) noexcept; | ||

T fetch_xor( T arg, std::memory_order order = std::memory_order_seq_cst ) volatile noexcept; |

Atomically replaces the current value with the result of bitwise XOR of the value and `arg`

. The operation is read-modify-write operation. Memory is affected according to the value of `order`

.

The volatile-qualified version is deprecated if | (since C++20) |

arg | - | the other argument of bitwise XOR |

order | - | memory order constraints to enforce |

The value immediately preceding the effects of this function in the modification order of `*this`

.

(C++11)(C++11) | replaces the atomic object with the result of bitwise XOR with a non-atomic argument and obtains the previous value of the atomic (function template) |

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