<!--
{
  "availability" : [
    "macOS: 10.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Accelerate",
  "identifier" : "/documentation/Accelerate/vL64Rotate(_:_:)",
  "metadataVersion" : "0.1.0",
  "role" : "Function",
  "symbol" : {
    "kind" : "Function",
    "modules" : [
      "Accelerate"
    ],
    "preciseIdentifier" : "c:@F@vL64Rotate"
  },
  "title" : "vL64Rotate(_:_:)"
}
-->

# vL64Rotate(_:_:)

64-bit left rotate.

```
func vL64Rotate(_ vA: vUInt32, _ vRotateFactor: vUInt8) -> vUInt32
```

## Parameters

`vA`

The vector to shift.

`vRotateFactor`

The number of bits to shift the vector.

## Return Value

Returns the shifted vector.

## Discussion

This function treats the vector as a pair of 64-bit values to rotate.

---

Copyright &copy; 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)