On Mon, Aug 15, 2016 at 6:20 PM, Matthias Braun <ma...@braunis.de> wrote:
> MatzeB added a subscriber: MatzeB.
> MatzeB added a comment.
>
> The sanitizer code triggers this warning for code that looks conceptually
> like this:
>
> typedef struct Bla { char bar; int foo; } __attribute__((packed));
>
> uintptr_t getu(struct Bla *b) { return (uintptr_t)&b->foo; }
>
> Resulting in:
>
> taking address of packed member 'foo' of class or structure
> 'Bla' may result in an unaligned pointer value
> [-Waddress-of-packed-member]
>
> Of course the warning can be silenced with `return
> (uintptr_t)(char*)&b->foo;` still casting to an int type seems like a benign
> case for this warning so maybe we should exclude that?
I agree, it seems sensible to silence the warning in that case, yes.
~Aaron
>
>
> Repository:
> rL LLVM
>
> https://reviews.llvm.org/D20561
>
>
>
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
