empty function optimizations

[Jan Reimers]

<Snip>
> 
> There are different cases. In some cases, the template functions are
> independent from the template parameter, e.g. std::list::begin. What
> template function are you thinking of that only depends on sizeof(T)?
> I don't think there are so many of them in the STL.
I thought that any function calling operator++ on an iterator would need to
know sizeof(T)?

JR