<!--
{
  "availability" : [
    "iOS: 8.0.0 -",
    "iPadOS: 8.0.0 -",
    "macCatalyst: 8.0.0 -",
    "macOS: 10.10.0 -",
    "tvOS: 9.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 2.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Swift",
  "identifier" : "/documentation/Swift/StringProtocol/getLineStart(_:end:contentsEnd:for:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "Swift"
    ],
    "preciseIdentifier" : "s:Sy10FoundationE12getLineStart_3end11contentsEnd3forySpySS5IndexVG_A2Hqd__tSXRd__AG5BoundRtd__lF"
  },
  "title" : "getLineStart(_:end:contentsEnd:for:)"
}
-->

# getLineStart(_:end:contentsEnd:for:)

Returns by reference the beginning of the first line and
the end of the last line touched by the given range.

```
func getLineStart(_ start: UnsafeMutablePointer<Self.Index>, end: UnsafeMutablePointer<Self.Index>, contentsEnd: UnsafeMutablePointer<Self.Index>, for range: some RangeExpression<String.Index>)
```

---

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)