std::atomic_ref<T>::fetch_min
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< cpp | atomic | atomic ref
Provided only when T is an integral type other than cv bool or a pointer-to-object type |
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value_type fetch_min( value_type arg, std::memory_order order = |
(since C++26) | |
Atomically replaces the current value of the referenced object with the result of std::min of the value and arg. That is, it performs atomic minimum operation. The operation is a read-modify-write operation. Memory is affected according to the value of order.
If T
is a pointer type and the pointers point to different complete objects (or subobjects thereof), pointer comparison does not establish a strict weak ordering.
This overload participates in overload resolution only if std::is_const_v<T> is false.
Contents |
[edit] Parameters
arg | - | the other argument of std::min |
order | - | memory order constraints to enforce |
[edit] Return value
The value immediately preceding the effects of this function in the modification order of *this.
[edit] Notes
Feature-test macro | Value | Std | Feature |
---|---|---|---|
__cpp_lib_atomic_min_max |
202403L |
(C++26) | Atomic minimum/maximum |
[edit] Example
This section is incomplete Reason: no example |