Re: [boost] boost::result_of and C++03

From: Joel de Guzman (joel_at_[hidden])
Date: 2008-04-09 21:28:41

Eric Niebler wrote:
>>
> IIUC, this has implications for people wanting to write TR1-style 
> function objects today. I think Shunsuke may be right in that we need an 
> rvalue_wrapper so that it is possible to write function objects that 
> will continue to work unmodified in C++0x. That is, my use of 
> reference_wrapper to carry lvalue-ness has it backwards. T const & 
> should be assumed to be a const lvalue, because it will mean that 
> unambiguously in C++0x.
> 
> FWIW, I think fusion::make_vector()'s use of reference_wrapper is also 
> incorrect. :-(

Which was taken from Boost.Tuple by Jaakko, FWIW. Interesting... :)

Regards,
-- 
Joel de Guzman
http://www.boost-consulting.com
http://spirit.sf.net