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Re: -Winline option


On 04/10/2015 08:56 AM, Paul Eggert wrote:
> David Miller wrote:
>> In this particular case the inline is in a header file to provide a
>> function used by applications.
> 
> As I understand it <scratch_buffer.h> is a private header, not for use
> by applications.  See, e.g.,
> <https://sourceware.org/ml/libc-alpha/2015-04/msg00047.html> where I ask
> "These functions are all private to glibc, right?" and the followup
> <https://sourceware.org/ml/libc-alpha/2015-04/msg00067.html> where
> Florian says "My concern was the internal ABI between libc and the NSS
> modules."
> 
> If <scratch_buffer.h> is intended to be public then we have a problem,
> as C99 frowns on public headers defining static inline functions for use
> in application code.

It's not intended as a public header, not for the foreseeable future.
The concern about unused static functions is still valid, though.

I think we either have to ban âinlineâ and use â__always_inlineâ
exclusively where that makes sense, or drop -Winline.  As I said, the
latter shouldn't be needed anymore because __always_inline failures are
covered under -Wattributes.

-- 
Florian Weimer / Red Hat Product Security


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