Hi, On behalf of Apple..
This is an error in the release notes. You’re not missing anything and Swift in Xcode 8.1 beta 2 is the same as Xcode 8.1 beta 3. Sorry for the confusion and we’ll get the release notes fixed up. Thanks, Ewa > On Oct 12, 2016, at 2:48 AM, Jens Persson via swift-dev <swift-dev@swift.org> > wrote: > > I'm wondering about this too. > > Xcode 8.1 beta 3 doesn't seem to include any of the pointer-related stuff > mentioned in the release notes section New in Xcode 8.1 beta 3 - Swift > Compiler. > > /Jens > > > On Wed, Oct 12, 2016 at 2:13 AM, Norio Nomura via swift-dev > <swift-dev@swift.org <mailto:swift-dev@swift.org>> wrote: > The release notes of Xcode 8.1 beta 3 said: > > Two types have been added to the Swift standard library: > > UnsafeRawBufferPointer and UnsafeMutableRawBufferPointer. > > But I'm getting errors on building sample codes in release notes: > ``` > ➜ 9:10:46 DEVELOPER_DIR=/Applications/Xcode-beta.app swift > Welcome to Apple Swift version 3.0.1 (swiftlang-800.0.56 clang-800.0.42). > Type :help for assistance. > 1> struct Header { > 2. var x: Int > 3. var y: Float > 4. } > 5. > 6. var header = Header(x: 0, y: 0.0) > 7. var byteBuffer = [UInt8]() > 8. withUnsafeBytes(of: &header) { (bytes: UnsafeRawBufferPointer) in > 9. byteBuffer += bytes > 10. } > 11. > 12. let intArray = [1, 2, 3] > 13. > 14. intArray.withUnsafeBytes { (bytes: UnsafeRawBufferPointer) in > 15. byteBuffer += bytes > 16. } > error: repl.swift:8:1: error: use of unresolved identifier 'withUnsafeBytes' > withUnsafeBytes(of: &header) { (bytes: UnsafeRawBufferPointer) in > ^~~~~~~~~~~~~~~ > > error: repl.swift:8:40: error: use of undeclared type 'UnsafeRawBufferPointer' > withUnsafeBytes(of: &header) { (bytes: UnsafeRawBufferPointer) in > ^~~~~~~~~~~~~~~~~~~~~~ > > error: repl.swift:14:36: error: use of undeclared type > 'UnsafeRawBufferPointer' > intArray.withUnsafeBytes { (bytes: UnsafeRawBufferPointer) in > ^~~~~~~~~~~~~~~~~~~~~~ > > > 1> > ``` > > Am I missing something needed for using them? > Thanks, > > Norio Nomura @norio_nomura > > > _______________________________________________ > swift-dev mailing list > swift-dev@swift.org <mailto:swift-dev@swift.org> > https://lists.swift.org/mailman/listinfo/swift-dev > <https://lists.swift.org/mailman/listinfo/swift-dev> > > > _______________________________________________ > swift-dev mailing list > swift-dev@swift.org > https://lists.swift.org/mailman/listinfo/swift-dev
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