[cfe-commits] [PATCH] stddef.h: redefine offsetof macro every time the header is included

[Chandler Carruth]

Just to comment on one part of this discussion:

On Thu, Apr 26, 2012 at 3:38 AM, Evgeniy Stepanov <eugeni.stepanov at gmail.com
> wrote:

> AFAIK, there can be no redef warnings in a compiler header.
>

There are warnings, but due to being system headers, they are typically
suppressed.

That said, generating (and suppressing) warnings isn't free, so we should
avoid doing so unnecessarily. As such, using undef seems reasonable.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/cfe-commits/attachments/20120426/2b44a51d/attachment.html>