Re: bug: save/append bombs if leading time value is 0

[Steve Hankin <hankin@xxxxxxxxxxxxx>]

Hi Andrew,

The bug appears to be Linux-specific. It does not occur when I test your
lines on either V5.22 or V5.3 on Solaris.

Previous to version 5 Ferret drew a distinction between "calendar" axes
and "raw numerical" T axes based upon whether the time coordinate was
negative. This bug looks like a residual from that.

If you want to follow up with details please send to ferret@pmel.noaa.gov
(unless you think they those details may be of general interest.)

    Thanks for the report - steve

-------------------

Andrew Wittenberg wrote:

> One more bug that I couldn't find in the mail archives...
>
> Andrew
>
> ----------------------------------------------------------------------
> Andrew Wittenberg          Program in Atmospheric and Oceanic Sciences
> andyw@splash.princeton.edu                        Princeton University
> ----------------------------------------------------------------------
>
> ! append_bug.jnl
> ! Demo of Ferret v5.22 save/append bug.
> ! save/append bombs if and only if leading time axis value is 0.
> !
> ! Output of uname -a:
> ! Linux linux1 2.2.16 #5 Fri Aug 18 21:33:17 EDT 2000 i686 unknown
> !
> ! Ferret info:
> !       NOAA/PMEL TMAP
> !       Program FERRET
> !       Version 5.22 - 07/27/00
> !       21-Mar-01 12:05
>
> ! Try the following immediately after entering Ferret:
>
> def ax/t=0:0:1 ax
> let a = t[gt=ax]
> let b = t[gt=ax]
> save/q/file="ab.nc"/clobber a
> save/q/file="ab.nc"/append b
>
> ! This is what I get:
> ! **TMAP ERR: error in line definition
> !             disordered output coordinate value: 0 Axis: AX
>
> ! This ALWAYS occurs with save/append when the leading time axis
> ! value is 0, regardless of the number of time axis values;
> ! and this NEVER occurs when the leading time axis value is anything
> ! other than 0.  (e.g. "def ax/t=-1:-1:1 ax" does work)
> ! This problem does not occur with axes other than time.

--
Steve Hankin
NOAA/PMEL, 7600 Sand Point Way NE, Seattle, WA 98115-0070
ph. (206) 526-6080 -- FAX (206) 526-6744