# init(cString:encoding:) Returns an @c NSString object initialized using the characters in a given C array, interpreted according to a given encoding. ``` convenience init?(cString nullTerminatedCString: UnsafePointer, encoding: UInt) ``` ## Parameters `nullTerminatedCString` A C array of characters. The array must end with a @c NULL character; intermediate @c NULL characters are not allowed. `encoding` The encoding of @c nullTerminatedCString. ## Return Value An @c NSString object initialized using the characters from @c nullTerminatedCString. The returned object may be different from the original receiver. --- 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)