Module fetch 

Fetch and apply operations to the current value, returning the previous value.

Traits

Add

Adds to the current value, returning the previous value.

And

Bitwise “and” with the current value.

Max

Maximum with the current value.

Min

Minimum with the current value.

Nand

Bitwise “nand” with the current value.

Or

Bitwise “or” with the current value.

Sub

Subtracts from the current value, returning the previous value.

Update

Fetches the value, and applies a function to it that returns an optional new value.

Xor

Bitwise “xor” with the current value.