operator &+= { associativity right precedence assignment } Declarations func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger func &+=(_: inout Self, rhs: Self) Adds two values and stores the result in the left-hand-side variable, discarding any overflow. The masking addition assignment operator (&+=) silently discards any overflow that occurs during the operation. In the following example, the sum of 100 and 121 is greater than the maximum representable Int8 value, so the result is the overflowed value: var x: Int8 = 10 x &+= 21 // x == 31 var y: Int8 = 100 y &+= 121 // y == -35 (after overflow) Parameters: lhs: The first value to add. rhs: The second value to add. Declaration func &+=(lhs: inout Self, rhs: Self) Declared In FixedWidthInteger