[Bug c/66970] Add __has_builtin() macro

linux at carewolf dot com gcc-bugzilla@gcc.gnu.org
Sun Jul 14 09:02:00 GMT 2019


--- Comment #19 from Allan Jensen <linux at carewolf dot com> ---
(In reply to felix from comment #18)
> So even if this feature is adopted as-is, it will necessitate some changes
> in the documentation. And while I can sympathise with claims that this
> behaviour is surprising, what are the alternatives? If keywords should count
> as built-ins, should __has_builtin(sizeof) expand to 1? Should
> __has_builtin(volatile)?

No just keywords that begin with __builtin_..

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