On 2016-10-08, at 1:01 PM, Bernd Edlinger wrote:

> I think your callback should also directly control the
> alignment of max_align_t in stddef.h:
> 
> typedef struct {
>   long long __max_align_ll __attribute__((__aligned__(__alignof__(long 
> long))));
>   long double __max_align_ld 
> __attribute__((__aligned__(__alignof__(long double))));
>   /* _Float128 is defined as a basic type, so max_align_t must be
>      sufficiently aligned for it.  This code must work in C++, so we
>      use __float128 here; that is only available on some
>      architectures, but only on i386 is extra alignment needed for
>      __float128.  */
> #ifdef __i386__
>   __float128 __max_align_f128 
> __attribute__((__aligned__(__alignof(__float128))));
> #endif
> } max_align_t;
> 
> 
> otherwise these will not match.

Yes, i missed a hunk in the submission.  On hpux, the alignment is determined by the long
double field.  With glibc, we need 16 byte alignment for max_align_t.

Dave
--
John David Anglin	dave.anglin@bell.net