Re: [boost] Boost.Move Where we are with move semantic emulation on C++03 compilers?

Subject: Re: [boost] Boost.Move Where we are with move semantic emulation on C++03 compilers?
From: Eric Niebler (eric_at_[hidden])
Date: 2009-02-12 12:45:13

Ion Gaztañaga wrote:
> Daniel James wrote:
>> Does that mean you're not working on it anymore?
> 
> No, I'm working on it. Right now writing some Quickbook documentation. 
> But I have a question on perfect forwarding: has anybody implemented 
> perfect forwarding using boost preprocessor?
> 
> I mean something that generates a call with all the combinations of 
> const and non-const references:
> 
> function()
> function(const T0 &t0)
> function(T0 &t0)
> function(const T0 &t0, const T1 &t1)
> function(const T0 &t0, T1 &t1)
> function(T0 &t0, const T1 &t1)
> function(T0 &t0, T1 &t1)
> //....
> 
> I would like to add this to the library to have a good "forward" 
> emulation and I really don't know how to use Boost.Preprocessor to 
> generate such thing. Any help is appreciated.

It's not hard to add with BOOST_PP_SEQ_FOR_EACH_PRODUCT, as done here:

http://lists.boost.org/Archives/boost/att-105224/01-part

But please make it optional and in a separate header. It's very 
compile-time expensive.

-- 
Eric Niebler
BoostPro Computing
http://www.boostpro.com