[boost] RE: Variant size bug?

From: Persson Jonas (jonas.persson_at_[hidden])
Date: 2003-11-05 12:25:20

> From: Eric Friedman [mailto:ebf_at_[hidden]]
...
> Anyhow, as I just posted on the list, I've changed variant so 
> that, at 
> least in the 1.31 release, variant<> is not supported at all. 
> Similarly, 
> variant on an empty type sequence will lead to a compile-time error.
> 
> While this change perhaps does not help you with your metaprogramming 
> 'termination' condition, it does open up variant for future changes 
> without negative effects on backwards compatibility.

I think this is a good decision. No empty variants are much easier to 
handle than ones with strange behaviour. I hope that it will be possible 
in future releases though, as it would be a very handy feature.

Thanks for listening and for a great library.
        / Jonas