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[UDUNITS #OTA-964622]: udunits2 error message



Ajit,

> (1)In testUnits.c :
> second = ut_new_base_unit(unitSystem);
> CU_ASSERT_PTR_NOT_NULL(second);
> CU_ASSERT_PTR_NULL(ut_offset_by_time(second,
> ut_encode_time(1970, 1, 1, 0, 0, 0)));
> CU_ASSERT_EQUAL(ut_get_status(), UT_NO_SECOND);
> 
> My modified test  without CUnit calls:
> ut_unit *second = ut_new_base_unit(unitSystem);
> if (second == NULL)
> printf("Error\n");  // This is NOT printed

Correct.

> if (ut_offset_by_time(second, ut_encode_time(1970, 1, 1, 0, 0, 0)) == NULL)
> printf("Error\n");  // This is printed

The above isn't an error: under these conditions, ut_encode_time() should
return NULL.

> if (ut_get_status() != UT_NO_SECOND)
> printf("Error\n");  // This is printed

It shouldn't be. What is the value returned by ut_get_status()?

> The second and third errors are printed.
> 
> Iâm using the same checking conditions as in the CU tests

Not quite.

> so my inference is that this is not working.
> 
> Am I mistaken?

See my responses above.

> (2)With udunits-1 I could do this :
> float second;
> double val = 1095.0;
> int year, year2, month, day, hour, minute;
> utIni(&unit);
> if (stat = utScan("days since 1895-01-01", &unit) == 0)
> {
> if (stat = utIsTime(&unit) == 1)
> {
> year2 = 1900;
> utCalendar(val, &unit, &year, &month, &day, &hour, &minute, &second);
> printf("%lf = %d/%d/%d %d:%d:%f\n", val, month, day, year, hour, minute, 
> second);
> utInvCalendar(year2, month, day, hour, minute, second, &unit, &val);
> printf("%d/%d/%d %d:%d:%f = %lf\n", month, day, year2, hour, minute, second, 
> val);
> }
> }
> 
> I looked through the supplied docs, links and help pages for udunits2 and did 
> not see any help on how I could achieve the above
> 
> Basically I want to parse a string like âdays since 1895-01-01â, then 
> convert a value to date and a date to value
> 
> Can you guide me on how I can do a similar thing using udunits2?

You're right. There doesn't appear to be a way to do that in the UDUNITS-2
package. An oversight on my part.

I'll see about adding that capability.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: OTA-964622
Department: Support UDUNITS
Priority: Normal
Status: Closed
===================
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