Template functions, can we make it more simple?

[SteveGuo]

> He meant that when you only have a single token it is parsed as 
> PARAMTYPE and not varname.
>
> EG:
>
> void foo(int);

Thanks for pointing out my misunderstanding.

But we can make a compiler which can "understand" what we want it 
understand.

void foo(int); // this is just a declaration, not a definition

auto foo(a) // this is a definition, with a function body, they 
are different
{
}