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@sauyon sauyon commented Sep 24, 2018

Since void is generally considered a 1-byte type when doing pointer arithmetic, these results are usually false positives.

Technically this isn't allowed by the C spec, but it's been seen in the wild:
see https://lgtm.com/projects/g/libcsp/libcsp/snapshot/3763c7b3380f95c81636de5c95156fd3ef151a21/files/src/csp_buffer.c\#x1d04047d2bb68c21:1.

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LGTM. The tests for this query are still internal, so I've created an internal PR to add coverage for this case (https://git.semmle.com/Semmle/code/pull/28047).

@geoffw0 geoffw0 added the C++ label Sep 25, 2018
@geoffw0 geoffw0 merged commit 9c219b9 into github:master Sep 25, 2018
aibaars pushed a commit that referenced this pull request Oct 14, 2021
Model private methods and "main objects"
smowton added a commit to smowton/codeql that referenced this pull request Feb 7, 2022
…ate-code

Avoid duplicating generation of IrFile labels
MathiasVP pushed a commit to MathiasVP/ql that referenced this pull request Aug 10, 2025
…e-story-2

PS: Cleanup upgrade/downgrade chains
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