I am getting more than a little sick of this iPhone SDK and its documentation...
I am calling AudioConverterNew
in the documentation under Returns: it says \
This is available on macOS and for iOS from 11.3 and above.
I know this is an old post, but I was reading the apple docs in a section related to keychains. They mention a method that is used to convert OSStatus errors into something readable.
SecCopyErrorMessageString
Returns a string explaining the meaning of a security result code.
SecCopyErrorMessageString (OSStatus status, void* reserved );
Useage:
NSString* ErrMsg = (__bridge_transfer NSString *) SecCopyErrorMessageString(theOSStatusError, NULL);
It worked for me with my keychain OSStatus errors. Does it work for you? You will need Security.Framework added to your project to use this method.