|
how does the OS differenciate between a x'00' and the beginnings of a packed numeric field?
It doesn't differentiate. What are you talking about? Bytes are bytes. The system stores them on disk and loads them back when you ask for them. It doesn't care whether it's x'01' x'02' x'00' or x'f6' or any other value. Whatever you put in the byte it writes to disk. Whatever it wrote to disk gets read back when you read the file.
I don't understand the question.
As an Amazon Associate we earn from qualifying purchases.
This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].
Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.
midrange.com
