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Standard Library Preview

The Swift Standard Library Preview package provides access to new functionality that has been accepted into the standard library through the Swift Evolution process, but has not yet shipped as part of an official Swift release.

Each approved standard library proposal is available as its own individual package, listed below. The StandardLibraryPreview package in this repository acts as an umbrella library, re-exporting each of the individual packages.

Included Modules

  • SE0270_RangeSet: Operations on noncontiguous subranges of collections, such as subranges(where:) and moveSubranges(_:to:), as well as the supporting RangeSet type.
  • SE0288_IsPower: Extends BinaryInteger with an isPower(of:) method that returns whether an integer is a power of another.

Usage

To use the umbrella library in a Swift Package Manager project, add the following to your Package.swift file's dependencies:

.package(url: "https://github.com/apple/swift-standard-library-preview.git", from: "0.0.1"),

Next, add the preview package as a dependency for your target:

.product(name: "StandardLibraryPreview", package: "swift-standard-library-preview"),

Important: The Standard Library Preview package is under continuous development, and maintains a major version of 0 to indicate that it is not intended to be source stable. For example, after a submodule's functionality has been included with shipping versions of the Swift standard library for some time, it may be removed from the umbrella library.

If you require source stability in your project, add the individual submodules instead of the swift-standard-library-preview package.

Contributing

Contributions to the Standard Library Preview package are welcomed and encouraged!