align(n) outside struct useless?

[Adam D. Ruppe via Digitalmars-d-learn]

On Monday, 20 February 2017 at 20:45:27 UTC, Michael Coulombe 
wrote:
> I can't figure out how to set the alignment of a struct using 
> align(n) on the outside of the struct.

align(n) on the outside of a struct will pad the struct as a 
whole to meet that size requirement. So it changes the sizeof and 
only really aligns when you have an array of the structs. I don't 
  believe it does anything (except perhaps pad bytes again) for a 
stack-defined struct.

align on the inside will shuffle the padding around in between 
members or pushing it to the end.

You'll likely want BOTH align, inside and outside, if you want to 
get a packed array of packed structs...