Instance Methodswift 6.0.3Synchronization

    subtract(_:ordering:)

    Perform an atomic subtract operation and return the old and new value, applying the specified memory ordering.

    iOS
    18.0+
    macOS
    15.0+
    tvOS
    18.0+
    visionOS
    2.0+
    watchOS
    11.0+
    @discardableResult func subtract(_ operand: UInt64, ordering: AtomicUpdateOrdering) -> (oldValue: UInt64, newValue: UInt64)
    Mangled symbol
    s15Synchronization6AtomicVAAs6UInt64VRszrlE8subtract_8orderingAE8oldValue_AE03newG0tAE_AA0B14UpdateOrderingVtF What are these?
    FNV24 hash
    2DS2S
    Constraints
    where Value == UInt64

    Parameters

    operand

    An integer value.

    ordering

    The memory ordering to apply on this operation.

    Returns

    A tuple containing the original value before the operation and the new value after the operation.