In article <[log in to unmask]>, "Kishore Kumar.M"
<[log in to unmask]> writes
>
>                    NEW DATE INTRINSICS FOR MPE/iX
>                    ==============================
>
>This is a preliminary draft document proposing the new date intrinsics
>in MPE/iX.  T
<SNIP>
>DISCUSSION
>==========
>
> *  Would the proposed  intrinsics meet your  requirements  to a large
>    extent?

Very much so. The must useful by far would be the proposed HPDATECONVERT
intrinsic especially as it would apparently work with the strange MM3000
dates.
>
> *  While  converting  the dates from one format to another,  when the
>    destination  format  supports a four  digit/four  field year, what
>    should be the century portion of the converted date?  Should it be
>    zeros or should it use the proposed HPYYYY CI variable?

Nither option is ideal. Perhaps a century could be determined by
examination of the 2 digit year. Less than 50 = 20, otherwise 19. After
a few years into the 21st century it could be changed to use HPYYYY.

> *  Is an  intrinsic  routine,  HPDATECOMPARE,  to  compare  two dates
>    required?  Such an  intrinsic  compares  two  dates  in one of the
>    standard   formats   described   above.  It  would  report   their
>    relationship (less than, equal, or greater).

Not by us. We store all our dates in a "sortable" format.
>
<SNIP>
>
> *  How useful would it be to have an  intrinsic to check the validity
>    of a given date with respect to one of the Standard Date Formats?

Very useful.

Thanks for involving us in your deliberations.
--
Mark Undrill                            Telephone: +44 (0)1684 291710
Affirm Limited                          Fax.:      +44 (0)1684 291712
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