+=(_:_:)

Declaration

static func += (lhs: inout UInt, rhs: UInt)

Parameters

• lhs:

  The first value to add.

• rhs:

  The second value to add.

Discussion

The sum of the two arguments must be representable in the arguments’ type. In the following example, the result of 21 + 120 is greater than the maximum representable Int8 value:

var x: Int8 = 21
x += 120
// Overflow error