Re: [boost] Proposed: a new sequence adapter for MPL (product_view)

From: Max Motovilov (max_at_[hidden])
Date: 2008-03-12 10:56:30

>> No, they don't look similar. As far as I can tell from a one-minute 
>> look, the solution is simply a nested for_each loop and does not provide 
>> an actual sequence adapter, despite the name cross_product_view. 

That's the danger of one-minute looks... I take that back. Yes, the 
whole thing is a sequence and output pairs are indeed lazily generated. 
I am not sure if this approach can be generalized to an arbitrary number 
of sequences. Perhaps it can be, by making the whole thing a recursive 
template instead of 3 separate ones. I'd try it just to see which 
version results in simpler code (gut feeling: the recursive template) 
and in faster compilation times (gut feeling: my current implementation) 
but customers and management are jointly snapping at my heels...

> So, in view of that, could you explain why it's not a sequence adapter?

The usual explanation: needed more coffee :)

...Max...