[Development] Setters: Passing by value or const reference?

[Olivier Goffart]

On Wednesday 25 April 2012 13:47:35 Thiago Macieira wrote:
> However, I agree with you: it's too late to change it everywhere. Unless we
> do it properly, it also has the potential to make things worse. I'd like to
> ask you to find out where this is most important and do it now.

My point was to make it the default policy for new setters rather then 
changing existing code at this point.