Re: [Boost-users] [Bind] How to bind?

Subject: Re: [Boost-users] [Bind] How to bind?
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2009-01-03 12:01:46

AMDG

Max wrote:
> Should I use a seperate functor like this?
>
> template<class T>
> struct dereference : public std::unary_function<T*, T>
> {
>     T operator()(T *pt) { return *pt; }
> };
>
> A a;
> boost::bind(&processA, boost::bind(dereference<A>(), _1))(&a);
>   

If you're using Boost.Bind, yes, although it might be better for 
dereference to return a
reference.

> If the answer is yes, is there a safer and stronger equivalence
> of "dereference" in boost?
>   

Boost.Lambda allows dereference.

> I've tried with this:
>
> boost::bind(&processA, *_1)
> processA(*boost::lambda::_1)
>   

A slight variation should work:

boost::lambda::bind(&processA, *boost::lambda::_1)

In Christ,
Steven Watanabe