On Monday, 18 September 2017 at 17:46:52 UTC, Ola Fosheim Grøstad wrote: > No, I don't believe they do, as unsigned integers are modular > in C/C++. So you can't check third party code because it pervasively uses unsigned integers for lengths, sizes and everything else, obvious example: https://fossies.org/dox/libpng-1.6.32/structpng__info__def.html