# init(decodingCString:as:) Creates a string from the null-terminated sequence of bytes at the given pointer. ``` init(decodingCString nullTerminatedCodeUnits: UnsafePointer, as sourceEncoding: Encoding.Type) where Encoding : _UnicodeEncoding ``` ## Parameters `nullTerminatedCodeUnits` A pointer to a sequence of contiguous code units in the encoding specified in `sourceEncoding`, ending just before the first zero code unit. `sourceEncoding` The encoding in which the code units should be interpreted. --- 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)