---
title: "&*=(_:_:)"
framework: swift
role: symbol
role_heading: Operator
path: "swift/simd4/&*=(_:_:)-6xqb6"
---

# &*=(_:_:)

Updates the left hand side with the pointwise wrapping product of two vectors.

## Declaration

```swift
static func &*= (a: inout SIMD4<Scalar>, b: SIMD4<Scalar>)
```