Bulletin number: 204 Products affected: D700D Description: Reading with echo from a simulated keystream Component: THE LIBRARIES Date: Tue May 15 17:00:00 GMT 1990 ----- End of file and error conditions are signalled in the stream generated by an interface procedure such as keystream.from.file by negative numbers. Such numbers will set error if received in a stream processed by one of the procedures read.echo.int or read.echo.int64 within the code of which they will be passed as a parameter to the library function \tt is.in.range which expects a byte size parameter. The problem does not arise if the input procedures without echo are used, or the structure of input is such that error or end of file can arise only when using echoing input procedures other than the ones mentioned above.