[C++-sig] Re: Arbitrary argument lists, Python style?

[Conan Brink]

David Abrahams sez:

> "Conan Brink" <conanb at STCG.net> writes:

> > Forgive me if I'm just being dense
[snip]
> >
> > class BackCaller:
> >   def SetCallback(self, action, *args):
> >     self.cb = (action, args)
> >   def CallItBack(self):
> >     if self.cb:
> >       (action, args) = self.cb
> >       return action(*args)
> >
> > The thing that's causing me to pull foot-long hairs from my head is
that
> > little *args

> Does http://tinyurl.com/ibc6 help?

It does somewhat, but not to the extent that I was hoping for.

raw_function, of course, only wants an unbound function, not a member of
a class.

If I try to give it a class member, g++ 3.2 is more than pleased to give
me the error messages you might expect about how one must use .* or ->*
to call pointer-to-member function.

Are there plans for a raw_method or something similar that I can use for
wrapping a C++ class's member functions for this, or should I just go
with the Python wrapper approach?

Might be nice if the published version on www.boost.org included the
documentation for raw_function.hpp (I get 404 errors for
http://www.boost.org/libs/python/doc/v2/raw_function.html, which is
linked from http://www.boost.org/libs/python/doc/v2/reference.html).

-Conan



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