Returns the difference obtained by subtracting the given value from this value, along with a Boolean value indicating whether overflow occurred in the operation.
Required.
SDK
- Xcode 7.1+
Framework
- Swift Standard Library
Declaration
func subtractingReportingOverflow(_ rhs: Self) -> (partialValue: Self, overflow: Bool)
Parameters
rhsThe value to subtract from this value.
Return Value
A tuple containing the result of the subtraction along with a Boolean value indicating whether overflow occurred. If the overflow component is false, the partial component contains the entire difference. If the overflow component is true, an overflow occurred and the partial component contains the truncated result of rhs subtracted from this value.