# .|=(_:_:) Replaces `a` with the pointwise logical disjunction of `a` and `b`. ``` static func .|= (a: inout SIMDMask, b: SIMDMask) ``` ## Discussion Equivalent to: ``` for i in a.indices { a[i] = a[i] || b[i] } ``` --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)