Returns the product of the two given values, wrapping the result in case of any overflow.
SDK
- Xcode 9.0+
Framework
- Swift Standard Library
Declaration
static func &* (lhs: Self, rhs: Self) -> Self
Parameters
lhsThe first value to multiply.
rhsThe second value to multiply.
Discussion
The overflow multiplication operator (&*) discards any bits that overflow the fixed width of the integer type. In the following example, the product of 10 and 50 is greater than the maximum representable Int8 value, so the result is the partial value after discarding the overflowing bits.
let x: Int8 = 10 &* 5
// x == 50
let y: Int8 = 10 &* 50
// y == -12 (after overflow)
For more about arithmetic with overflow operators, see Overflow Operators in The Swift Programming Language.