Re: alignas (C11)
| От | Peter Eisentraut |
|---|---|
| Тема | Re: alignas (C11) |
| Дата | |
| Msg-id | 862bad1f-b94e-403d-b730-8af435f3cf58@eisentraut.org обсуждение исходный текст |
| Ответ на | Re: alignas (C11) (Tom Lane <tgl@sss.pgh.pa.us>) |
| Ответы |
Re: alignas (C11)
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| Список | pgsql-hackers |
On 23.01.26 23:18, Tom Lane wrote: > Peter Eisentraut <peter@eisentraut.org> writes: >> On 23.01.26 18:33, Tom Lane wrote: >>> Not sure what to do about that, but I do read it as indicating that we >>> cannot put any faith in the compiler to honor such large alignment >>> demands. > >> I think we could work around it like this: > >> #if defined(__cplusplus) && defined(__GNUC__) && __GNUC__ <= 6 >> #define alignas(a) __attribute__((aligned(a))) >> #endif > > Hmm, yeah, their bug #70066 shows clearly that the __attribute__ > spelling should work. But I think we'd better make the cutoff be > version 9 not version 6, because that same bug is quite clear > about when they fixed it. The lack of complaints from the buildfarm > may just indicate a lack of animals running the intermediate versions. Ok, done that way.
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