Just to comment on one part of this discussion: On Thu, Apr 26, 2012 at 3:38 AM, Evgeniy Stepanov <[email protected] > 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.
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