Property discussion wrap-up

[TommiT]

On Friday, 1 February 2013 at 15:14:55 UTC, Jonathan M Davis 
wrote:
> [..] You're generally doing something wrong
> if your type defines += and not + anyway, so I really don't see 
> the problem
> here.

Okay, I suppose you're right. But that still leaves the possible 
performance overhead with s.prop = (s.prop + 3). For example, if 
prop is an array of values, there's no point in making a copy of 
it, when you could more effectively just add 3 to each element of 
the array.