[PATCH] D98798: Produce warning for performing pointer arithmetic on a null pointer.

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

@thakis if this is an issue for you, please revert; like you said, we can figure out the issues later.

Looking at the warning you showed, we might want to consider suppressing that specific pattern, in addition to (or instead of?) suppressing it in system headers. The null pointer subtraction is the least of the problems in `(char*)&((struct S*)0)->member - (char*)0`.


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  https://reviews.llvm.org/D98798/new/

https://reviews.llvm.org/D98798