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std::atomic_ref<T>::fetch_min

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< cpp‎ | atomic‎ | atomic ref

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std::atomic_ref

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atomic_ref::operator+=atomic_ref::operator-=

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atomic_ref::fetch_max

(C++26)

atomic_ref::fetch_min

(C++26)

atomic_ref::operator++atomic_ref::operator++(int)atomic_ref::operator--atomic_ref::operator--(int)

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atomic_ref::fetch_and

atomic_ref::fetch_or

atomic_ref::fetch_xor

atomic_ref::operator&=atomic_ref::operator|=atomic_ref::operator^=

atomic_ref::is_always_lock_free

atomic_ref::required_alignment

Provided only when T is an integral type other than cv bool or a pointer-to-object type

value_type fetch_min( value_type arg,

std::memory_order order =

std::memory_order_seq_cst ) const noexcept;

(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

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