Re: [sigc] How to use sigc::bind<>

[Martin Schulze <martin-ml hippogriff de>]

Am 2003.11.09 17:10 schrieb(en) Jeff Franks:
> Martin Schulze wrote:
>
> > 1) It is a neat feature to able to specify the number of the argument
> >    to be fixed.
> > 2) There _needs_ to be a magical number for # specifying that the
> >    the last argument should be fixed for convenience and for the case
> >    that the number of arguments is not known.
> >
> > The current syntax is
> > "0" for the last argument,
> > "1" for the first,
> > "2" for the second,
> > etc.
> >
> > The only alternative to the current syntax I see is to use
> > "-1" for the last argument,
>
> Strangely enough, std::string defines ((size_t)-1) as npos, to imply 
> the end of a string, so -1 does seem a natural choice.

The problem with this is that the number is mandatory so that you
needed to write sigc::bind<-1>(...) for the most common case.
Hm, does anybody find this worse than sigc::bind<0>(...)?

Martin