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- From: elsie!ado@seismo.UUCP
- Date: Mon, 25 Aug 86 18:35:05 EDT
- Subject: negative time_t values
-
- While it's true that no UNIX files date back to before January 1, 1970,
- there *are* uses for times before that epoch: in personnel data bases where
- birth dates are recorded; in data bases recording astronomical events;
- in stock market price data bases (as used by chartist fanatics); and elsewhere.
- (And what of all those old 7094 executables that are being used on IBM machines
- running UNIX or a cousin? :-))
-
- I see more use in the short run for being able to record times between
- 1901 and 1970 that I see for being able to record times after 2038.
- And if we do make it into the twenty-first century, I imagine we'll be working
- on machines with 256-bit registers where time_t will have a type that allows
- it to represent times into the very distant future; if it's defined properly,
- time_t variables will also be able to represent times into the very distant
- past.
-
- In summary: I'd recommend retaining the ability for time_t variables to
- represent times before 1970.
- --
- UNIX is an AT&T registered trademark.
- Time is a Time/Life Incorporated trademark.
- IBM is an IBM trademark.
- --
- UUCP: ..decvax!seismo!elsie!ado ARPA: elsie!ado@seismo.ARPA
- DEC, VAX, Elsie & Ado are Digital, Borden & Ampex trademarks.
-
-
- Volume-Number: Volume 6, Number 41
-
-