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 20:32:58

I guess my implementation (using boost::mpl::set) could be easily adapted to 
this new compiler feature as soon as it is available.

Peter

"Peter Foelsche" <peter_foelsche_at_[hidden]> wrote in message 
news:h995gr$644$1_at_ger.gmane.org...
> 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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>>
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