Subject: Re: [Boost-users] [mpl] bind help sought
From: Manfred Doudar (manfred.doudar_at_[hidden])
Date: 2010-02-23 05:16:04
On Mon, 22 Feb 2010 20:51:58 -0800
Steven Watanabe <watanabesj_at_[hidden]> wrote:
> Manfred Doudar wrote:
> > Hi,
> >
> > using namespace boost::mpl;
> >
> > typedef vector<M, R> vec;
> >
> > Func f;
> > Object instance;
> > for_each<vec>(boost::bind(&Func::operator()<XXX, Object>,
> > boost::ref(f),
> > instance)
> > );
> >
> >
> >
> > Question is, what goes in at XXX above?
> >
> > I was thinking something along the lines of:
> >
> > boost::mpl::bind<boost::mpl::_1>
> >
> > ..but well, that doesn't work.
> >
>
> Try passing an argument of type M or R as a parameter:
>
> template<typename T, typename U>
> void operator()(const T&, U& u) const {
> T::foo();
> }
> ...
> for_each<vec>(boost::bind(boost::ref(f), _1, instance))
>
To both Steven & Rutger who answered - a short note of thanks.
I was indeed aware of resloving the problem with the above mentioned
approach, but was hoping for an explicit invocation of some kind without
having to make use of a superfluous tag T in the parameter list. ..No
matter.
With thanks again to Steven and Rutger.
Cheers,
-- Manfred