On Feb 26 2021, Thiago Macieira wrote: > On Friday, 26 February 2021 10:14:42 PST Andreas Schwab wrote: >> On Feb 26 2021, Thiago Macieira via Gcc-patches wrote: >> > @@ -85,7 +85,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION >> > } >> > >> > private: >> > - alignas(__alignof__(ptrdiff_t)) ptrdiff_t _M_a; >> > + alignas(__alignof__(int)) int _M_a; >> >> Futexes must be aligned to 4 bytes. > > Agreed, but doesn't this accomplish that?
No. It uses whatever alignment the type already has, and is an elaborate no-op. Andreas. -- Andreas Schwab, sch...@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."
