Messages in this thread | | | Date | Wed, 27 Jun 2007 10:45:55 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: [PATCH 16/16] fix handling of integer constant expressions |
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On Wed, 27 Jun 2007, Al Viro wrote: > > Eh... I'd say that my variant for offsetof() is simply better - it usually > directly turns into EXPR_VALUE, right in place, without rather convoluted > work. Aside of "should such cast be a constant integer expression"...
Umm. But sparse is meant to parse C code. Which very much includes *other* projects.
The kernel, for example, has its own offsetof. And yes, these days we use "__compiler_offsetof()", but we used to do
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
and I seriously doubt that the kernel is the only one doing things like that.
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