Re: [boost] [result_of] Usage guidelines

Subject: Re: [boost] [result_of] Usage guidelines
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2012-09-04 03:07:39

On Tuesday 04 September 2012 06:00:39 Mathias Gaunard wrote:
> On 03/09/2012 09:08, Andrey Semashev wrote:
> > I realize that I can provide both result<> specializations and it will
> > work either way. But when there are more than one argument the
> > specializations begin to pile quickly. Consider also rvalue references
> > and const and non-const qualified my_foo.
> 
> I have yet to find a good way to do this myself.
> It seems it is an issue that really needs some written best practices
> though, since a lot of libraries that define result appear to not to it
> vert well (sadly, even Phoenix is among them; it uses more
> specializations than necessary and simple things like result_of<F(int,
> int, int&)> are ill-formed).

Yes, actually, I started asking these questions while I was working with 
Phoenix. :)

Jeffrey have suggested a good solution in his reply. I think it can be 
described in the result_of docs to resolve the confusion in the future. I can 
update the docs if noone objects.