Re: [boost] Boost.Bind and boost.ref propagation

Subject: Re: [boost] Boost.Bind and boost.ref propagation
From: Peter Dimov (pdimov_at_[hidden])
Date: 2011-01-07 17:24:47

Felipe Magno de Almeida wrote:
...
> int main()
> {
>   int i = 0;
>   boost::bind(::foo(), boost::ref(i))();
> }
>
> I would expect the T type to be boost::reference_wrapper<int>, but it is 
> actually int.
> It is not int& as well.
>
> How do I get to propagate the boost::reference_wrapper through boost.bind 
> to a template?

You can't, bind unwraps the reference_wrapper internally. Use either 
std::ref or your own reference wrapper.