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

[Martin Schulze <martin-ml hippogriff de>]

Am 2003.11.09 17:02 schrieb(en) Murray Cumming Comneon com:
> > From: Martin Schulze [mailto:martin-ml hippogriff de]
> > 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,
> > "0" for the first,
> > "1" for the second,
> > etc.
> >
> > I prefer it the way it is currently implemented. IMO, it is
> > very straight-forward. Propositions for a different syntax
> > are welcome.
>
> At the moment, in libsigc++ 1.2, SigC::bind() with no number means
> "bind the
> last argument". That's by far the most common case, and I'm happy as
> long as
> that works. The rest should be documented, but I don't think anybody
> is
> going to use it.

Unfortunately, C++ doesn't allow us to specify default template
arguments for functions. Therefore, the number always needs to be
specified. Or does somebody know a trick to make the number optional?

Regards,

  Martin