[gdal-dev] "Banning" use of underflow/overflow with unsigned integer arithmetic ?

[Andrew Bell]

Is this just on when running tests?

On Fri, Aug 16, 2019 at 1:28 PM Even Rouault <even.rouault at spatialys.com>
wrote:

> Hi,
>
> I've a PR ready that might be a bit controversial among contributors as it
> effectively "bans" a well-defined behaviour of C/C++, that is underflow/
> overflow on unsigned integer arithmetic. However there are potential for
> real
> bugs to be hidden by such a behaviour (I or other contributors fixed a few
> instances of that in a few previous commits), so it seems reasonable to
> try to
> avoid it when possible, and when not possible, to tag the functions where
> this
> is explicitly allowed with CPL_NOSANITIZE_UNSIGNED_INT_OVERFLOW
>
> See
> https://github.com/OSGeo/gdal/pull/1782
>
> Even
>
> --
> Spatialys - Geospatial professional services
> http://www.spatialys.com
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-- 
Andrew Bell
andrew.bell.ia at gmail.com
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