On Dec 4, 3:17 pm, Chris Angelico <ros...@gmail.com> wrote: > On Mon, Dec 5, 2011 at 1:51 AM, Dave Angel <d...@davea.name> wrote: > > In C, the padding to the largest alignment occurs at the > > end of a structure as well as between items. Otherwise, an array of the > > struct would not be safely aligned. if you have an 8byte item followed by a > > 4 byte item, the total size is 16. > > That's padding of the array, not of the structure.
That's a strange way to think of it, especially since the padding also happens for a single struct object when there's no array present. I find it cleaner to think of C as having no padding in arrays, but padding at the end of a struct. See C99 6.7.2.1p15: 'There may be unnamed padding at the end of a structure or union.' There's no mention in the standard of padding for arrays. -- Mark -- http://mail.python.org/mailman/listinfo/python-list
