On 2009-12-10 22:03-0000 Andrew Ross wrote:

>
> Alan,
>
> I notice your fix for the cppcheck detected issues makes use of goto's. In 
> many
> circles use of goto is considered a real no-no. I'm not sure my fix of using a
> macro for checking error codes and cleaning up is any better (see recent fix 
> to
> lib/nistcd/cdexpert.c), but we should perhaps have a coding policy on such
> things to go along with our style policy.

I am glad you brought this up.

I used to be fanatic about eliminating goto's, but then I read with interest
Linus's justification of them for the kernel.  After that I noticed a few of
them in PLplot as well (to deal with this issue of cleanly getting out of
error conditions without a bunch of duplicate code, see plctrl.c and
plcont.c.) So I propagated that style in the latest commit.  However, I
think your idea of using a macro instead to hide the duplicated code from
human eyes does look a lot better.

If everyone else agrees with the macro approach, I would be willing
to replace all the goto's (which I believe are uniformly due to this error
cleanup issue) in our source code with your macro approach if you don't
beat me to it.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state implementation
for stellar interiors (freeeos.sf.net); PLplot scientific plotting software
package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________

Linux-powered Science
__________________________

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