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- From: mullens@jamsun.ic.ornl.gov (James A. Mullens)
- Newsgroups: comp.os.ms-windows.programmer.win32
- Subject: NT system time format
- Message-ID: <1992Aug19.194823.28608@ornl.gov>
- Date: 19 Aug 92 19:48:23 GMT
- References: <KEVIN.92Aug18150139@buffalobill.edscom.demon.co.uk> <KEVIN.92Aug19103832@buffalobill.edscom.demon.co.uk>
- Sender: usenet@ornl.gov (News poster)
- Organization: Oak Ridge National Laboratory
- Lines: 19
-
- > The documentation for the FILETIME structure says it holds the number of
- > 100ns intervals since January 1st, 1601.
-
- This made me curious, especially since I hear the NT designer(s) was also
- involved in VMS. Does NT:
-
- keep system time in a 64-bit integer representing 100ns intervals?
- if so, does MS C 7.0 provide any support for 64-bit integer arithmetic?
-
- express "delta-time" (a time interval) as a negative 64-bit integer?
-
- provide/require library routines to add/subtract times and delta-times?
-
- Just curious because I'm thinking of getting NT and I've had to work with
- 64-bit time format under VMS a lot lately.
-
- jim mullens
- jcm@ornl.gov (128.219.128.17) -or- mullens@jamsun.ic.ornl.gov (128.219.64.31)
- voice: 615-574-5564
-