Type OperatorSwiftArgumentParserSwift

# &+(_:_:)

Returns the sum of the two given values, wrapping the result in case of any overflow.

Available because

`Self`

conforms to`FixedWidthInteger`

.

`static func &+ (lhs: Self, rhs: Self) -> Self`

## Parameters

- lhs
The first value to add.

- rhs
The second value to add.

## Overview

The overflow addition operator (`&+`

) discards any bits that overflow the fixed width of the integer type. In the following example, the sum of `100`

and `121`

is greater than the maximum representable `Int8`

value, so the result is the partial value after discarding the overflowing bits.

```
let x: Int8 = 10 &+ 21
// x == 31
let y: Int8 = 100 &+ 121
// y == -35 (after overflow)
```

For more about arithmetic with overflow operators, see Overflow Operators in *The Swift Programming Language*.