---
title: "%=(_:_:)"
framework: swift
role: symbol
role_heading: Operator
path: "swift/uint128/_=(_:_:)-75khj"
---

# %=(_:_:)

Divides the first value by the second and stores the remainder in the left-hand-side variable.

## Declaration

```swift
static func %= (a: inout UInt128, b: UInt128)
```

## Discussion

Discussion The result has the same sign as lhs and has a magnitude less than rhs.magnitude. var x = 22 x %= 5 // x == 2

var y = 22 y %= -5 // y == 2

var z = -22 z %= -5 // z == -2