func fatalError(_: @autoclosure () -> String, file: StaticString, line: UInt) Unconditionally prints a given message and stops execution. Parameters: message: The string to print. The default is an empty string. file: The file name to print with message. The default is the file where fatalError(_:file:line:) is called. line: The line number to print along with message. The default is the line number where fatalError(_:file:line:) is called. Declaration func fatalError(_ message: @autoclosure () -> String = default, file: StaticString = #file, line: UInt = #line) -> Never