[Octave-bug-tracker] [bug #38270] miscellaneous package: units conversion from degC to K fails with units 1.0

[Carnë Draug]

Follow-up Comment #24, bug #38270 (project octave):

So I got my hands on a MacOSX system to test this with the non-GNU units v1.00
and I get a different output from the one mentioned on message #4 (and one
very close to the GNU units):


$ units -v

  units version 1.0  Copyright (c) 1993 by Adrian Mariano
                    This program may be freely distributed
usage: units [-f unitsfile] [-q] [-v] [from-unit to-unit]
$ units degC K
    * 1
    / 1
$ units "degC(100)" K
unknown unit 'degC(100)'
conformability error
    1 degC(100)
    1 K


I then figured that this is not dependent on the units version, but on the
version of units data file. I found someone with a different version of MacOSX
and could replicate the output from message #4. The difference is in the
units.dat file (mentioned at the end of units man page):


/ $FreeBSD: src/usr.bin/units/units.lib,v 1.13 2002/07/09 08:47:03 joerg Exp
$
/ $FreeBSD: src/usr.bin/units/units.lib,v 1.19.2.1.2.1 2009/10/25 01:10:29
kensmith Exp $


I pushed another change (r12301) which tries both syntax of non-linear
conversion. There are a couple of tests in the function file so please run
"test units.m" and add your own as well.

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