Messages in this thread | | | Subject | Re: [RFC PATCH] compiler_attributes.h: Add 'fallthrough' pseudo keyword for switch/case use | From | Joe Perches <> | Date | Sun, 04 Aug 2019 19:01:06 -0700 |
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On Sun, 2019-08-04 at 18:18 -0700, Nathan Chancellor wrote: > On Sun, Aug 04, 2019 at 05:39:28PM -0700, Joe Perches wrote: > Hi Joe,
Hi Nathan.
> This patch resolves that while adding support for the attribute. > https://reviews.llvm.org/D64838 [] > > The __has_attribute use is at least clang compatible. > > https://releases.llvm.org/3.7.0/tools/clang/docs/LanguageExtensions.html > > even if it doesn't (seem to?) work. > > I was trying to follow along with this thread through the web interface > and kind of got lost, how does it not work?
It does not work in llvm/clang mainline through commit 305b961f64b75e73110e309341535f6d5a48ed72.
> If I apply your compiler attributes patch with D64838, > I see fallthrough get expanded to > __attribute__((__fallthrough__)) by the preprocessor.
Well, great. I hope D64838 or something like it gets applied soon. But all I could and did test was the current version.
cheers, Joe
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