Yes, that's understood. I'm just responding to the notion that it's a
bug for a package author to expect the compiler to do the right thing.

On Tue, 2018-08-14 at 15:56 -0700, Ian Lance Taylor wrote:
> On Tue, Aug 14, 2018 at 3:49 PM, Dan Kortschak
> <dan.kortsc...@adelaide.edu.au> wrote:
> > 
> > 
> > This ignores the possibility that more than one alignment-sensitive
> > field might be needed. Requiring that they all be up front,
> > potentially
> > degrading readability flies in the face of the design principles of
> > the
> > language. This kind foot-gun in other languages is why many people
> > choose Go.
> Yes.  It's a bug.  It's listed as a bug at the bottom of
> https://golang.org/pkg/sync/atomic.  The problem is that we haven't
> figured out the right way to fix it.  It may require a language
> change.  Or see https://golang.org/issue/19057 .
> 
> Ian
> 
> 
> > 
> > On Tue, 2018-08-14 at 06:49 +0000, Jakob Borg wrote:
> > > 
> > > It’s a bug in the library if it uses 64 bit atomic operations
> > > without
> > > ensuring 64 bit alignment. Putting the alignment-required field
> > > at
> > > the top of the struct is the traditional method.
> > > 
> > > //jb
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