[gdal-dev] GDAL Process Exit Codes and stderr

[Peter Townsend]

Great, thanks!

On Tue, Mar 10, 2026 at 2:17 PM Even Rouault <even.rouault at spatialys.com>
wrote:

>
> Le 10/03/2026 à 19:17, Peter Townsend via gdal-dev a écrit :
> > I thought it'd be easiest to just ask.
> >
> > When you run any of the GDAL executables, is it a safe assumption to
> > say that if the process exit code is 0 that it really did succeed at
> > whatever you told it to do? Despite whether it wrote anything out to
> > stderr?
> >
> > To word it a bit differently, if the process code is not zero, can I
> > assume that it didn't work out and I should stop whatever I was doing
> > with GDAL?
> As a principle, yes, that's how things are supposed to work. But as bugs
> happen, from time to time we fix issues where a 0 error code was
> returned whereas a failure occurs.
>
> --
> http://www.spatialys.com
> My software is free, but my time generally not.
>
>

-- 
Peter Townsend
Senior Software Developer
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