"David Abrahams" <dave@[...].com>  wrote in message
news:u7kcwwu0e.fsf@[...]..
>  Yeah, I haven't always been very comfortable with the
>  value-per-character of mpl::for_each -- it seems to have similar
>  properties to std::for_each in that way.  It's got certain advantages
>  for re-use:
> 
>     1. You can use different sequence types (I know Andrei doesn't buy
>        this one, but I still do; the concept of tuple-as-type-sequence
>        being one motivator)

My understanding is that front and pop_front work with different sequence
types, isn't that so? If that's the case, (1) illustrates no advantage of
the complicated version over the simple version.

>  I've been talking with Aleksey recently about how to improve the
>  syntactic situation without losing the separation of concerns that we
>  get, but we didn't come up with anything convincingly better.

The template pattern matching just makes it too easy... :o)))


Andrei



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