# utf8CString A contiguously stored null-terminated UTF-8 representation of the string. ``` var utf8CString: ContiguousArray { get } ``` ## Discussion To access the underlying memory, invoke `withUnsafeBufferPointer` on the array. ``` let s = "Hello!" let bytes = s.utf8CString print(bytes) // Prints "[72, 101, 108, 108, 111, 33, 0]" bytes.withUnsafeBufferPointer { ptr in print(strlen(ptr.baseAddress!)) } // Prints "6" ``` --- Copyright © 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)