On Thu, May 01, 2014 at 10:20:07AM -0700, Jonathan Nieder wrote:
> Hi,
> 
> brian m. carlson wrote:
> 
> > --- a/object.h
> > +++ b/object.h
> [...]
> > @@ -49,7 +56,7 @@ struct object {
> >     unsigned used : 1;
> >     unsigned type : TYPE_BITS;
> >     unsigned flags : FLAG_BITS;
> > -   unsigned char sha1[20];
> > +   unsigned char sha1[GIT_OID_RAWSZ];
> 
> Maybe my brain has been damaged by reading code from too many C
> projects that hard-code some constants, but I find '20' easier to read
> here.
> 
> What happened to the
> 
>       struct object_id {
>               unsigned char id[20];
>       };
> 
>       ...
> 
>       struct object {
>               ...
>               struct object_id id;
>       };
> 
> idea?

There didn't seem to be a huge amount of support for it.  Also, there
were concerns that some architectures might impose alignment constraints
on it that made sizeof(struct object_id) != 20.

-- 
brian m. carlson / brian with sandals: Houston, Texas, US
+1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only
OpenPGP: RSA v4 4096b: 88AC E9B2 9196 305B A994 7552 F1BA 225C 0223 B187

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