[patch] Preprocessorised tr1::tuple

[Paolo Carlini]

Gabriel Dos Reis wrote:

>Please, please, let's resist the temptation.  Ideally, we should reduce the
>number of macro usage close to zero. 
>  
>
100% agreed, but I'd like to also to thank Doug for the interesting 
summary: indeed,
sooner or later we have to figure out a single, consistent solution for 
all the cases he
kindly listed. I'm definitely willing to help on this.

Thanks,
Paolo.