---
title: "formIndex(_:offsetBy:limitedBy:)"
framework: swift-package-manager
role: symbol
role_heading: Instance Method
path: "swift-package-manager/documentation/packageplugin/filelist/formindex(_:offsetby:limitedby:)"
---

# formIndex(_:offsetBy:limitedBy:)

Inherited from Collection.formIndex(_:offsetBy:limitedBy:).

## Declaration

```swift
func formIndex(_ i: inout Self.Index, offsetBy distance: Int, limitedBy limit: Self.Index) -> Bool
```