Re: date function

Booth,

>  Fill "DateTest" with any Sunday's date and use "DateIn" as your target 
>date.  Then run this bit.  "indx" will be the day of the week where 
>0=Sunday, 6=Saturday.  (Test it though  - I may be off a day)
>   C*
>   C     DateIn        subdur    DateTest      days:*d           7 0
>   C     days          div       7             days
>   C                   mvr                     indx              1 

With this code you need to be sure that your "any Sunday" base date is
older than DateIn.  If so, you're OK.  If not, you can have a problem
because the remainder can be negative.  So you should add a test to
see if indx < 0 and if so do indx = indx + 7 to put it back in range.

Also note that ISO 8601 says that days should be numbered 1=Monday
thru 7=Sunday, but that is another matter.

Personally I like to put this in a subprocedure (like Rob's post)
rather than code it inline.  Mine is in a service program, with the
rest of my date handling functions.

Doug
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