Re: [boost] boost::bind result type

Subject: Re: [boost] boost::bind result type
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2010-07-20 20:16:29

AMDG

Daniel Walker wrote:
> Actually, I just looked into it, and this wasn't as hard as I thought.
> So, I can be a little more specific about the needed changes. As a
> proof of concept, I have attached a patch that allows the following
> where the bind object is stored directly by boost::function without
> type erasure.
>
> #include <functional>
> #include <boost/function.hpp>
> #include <boost/bind.hpp>
>
> int main()
> {
>     using namespace boost;
>     function<
>          bind_signature(std::plus<int>,boost::arg<1>,int)
>     > f = bind(std::plus<int>(), _1, 1);
> }
>   

If you're going to specify all the parameters of the
bind expression in the type of the boost::function, you'd
be better off just having a metafunction for deducing the
return type of bind.

In Christ,
Steven Watanabe