Date to Day-of-Week Conversion (Question)
D'Arcy J.M. Cain
darcy at druid.uucp
Fri Jun 21 02:45:34 AEST 1991
In article <1991Jun19.170753.593 at tse.uucp> Mark Turner writes:
>Hi folks! Can anyone help me with suggestions on how to convert a date to a
>day of the week? ...
>Please don't suggest that I should reset the system date and then pass a "tm"
>structure to the one of the ctime-related functions. I'd like to keep the
No need to muck with the system date. Just create a tm structure and fill
it in with the known values. now call mktime(3) and you should have the
day of the week in the tm_wday field. If you don't have mktime then send
me mail and I will send you a version. It's a flawed version but the flaw
is well defined and can be worked around. It calls localtime which is not
strictly allowed under ANSI. BTW, anyone know where I can get a PD or
freeware localtime so I can fix and post my mktime?
--
D'Arcy J.M. Cain (darcy at druid) |
D'Arcy Cain Consulting | There's no government
Toronto, Ontario, Canada | like no government!
+1 416 424 2871 |
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