[C++-sig] [ANN] arbitrary arity support / new callback interface

[Toon Knapen]

> Note that some of us (numeric crunchers) are stuck to 2.95.x because, for
> example, gcc-3.x.x built ATLAS library is known to be slower to when using
> 2.95.x and therefore 2.95.x compiler will not be obsolete for some time.
I did not know it had such a big effect on ATLAS (thanks for the info). 
gcc-3.0.3 should be overall faster (e.g. due to type-based alias analysis), 
but still is less performant on loop-unrolling etc. In my last simple test, 
gcc-3.0.4 almost obtained similar performance as 2.95.3 on numerical codes 
to. So I guess 3.1 should definitly (hopefully) make it obsolete.
BTW, since Intel is stopping the KAI Compiler, Los Alomos apparantly is 
heavily interested again in gcc which can only boost gcc's performance (heard 
it on the POOMA ml)

> I am far from asking full support for gcc-2.95.x of BPL as on can always
> keep two compilers around for different software but it is a bit
> inconvinient...
I also have 2.95.3 still around for numerical performance reasons. But for 
this area, exception handling is'nt super important anyway.

t