Re: [boost] [variant]anyone working on variadic template version?

Subject: Re: [boost] [variant]anyone working on variadic template version?
From: Peter Foelsche (peter_foelsche_at_[hidden])
Date: 2009-09-21 20:24:59

ok -- 

http://www.research.att.com/~bs/C++0xFAQ.html#variadic-templates

which compiler supports this already?

Peter

"Peter Foelsche" <peter_foelsche_at_[hidden]> wrote in message 
news:h994k1$444$1_at_ger.gmane.org...
> do you mean an implementation which is supposed to be used like this:
>
>
>
> typedef variant<boost::mpl::set<int, char, long, double, const char *> > 
> CVariant;
>
>
>
> "Larry Evans" <cppljevans_at_[hidden]> wrote in message 
> news:h95s8r$1i1$1_at_ger.gmane.org...
>> Is anyone working on a variadic template version of variant, i.e.
>> one that defined as:
>>
>>   template<typename... T>class variant;
>>
>> instead of:
>>
>>   template
>>   < typename T0  = detail::variant::void_
>>   , typename T1  = detail::variant::void_
>>   ...
>>   , typename T19 = detail::variant::void_
>>   > class variant;
>>
>> ?
>>
>> I'm thinking of attempting that, but I'd hate to waste
>> time if someone else has already done it or made some
>> progress on it.  Although BoostCon09 did have a workshop
>> on CXX0x:
>>
>>   http://www.boostcon.com/community/wiki/show/Start/HandsOnCXX0x/
>>
>> the sandbox directory for that:
>>
>>   https://svn.boost.org/svn/boost/sandbox/boost0x
>>
>> didn't appear to use the variadic template feature in variant:
>>
>> https://svn.boost.org/svn/boost/sandbox/boost0x/boost/variant/variant_fwd.hpp
>>
>> TIA.
>>
>> -regards,
>> Larry
>>
>>
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