help with a functor

i'll keep it short, hope this doesn't sound lazy:
i need to make a functor that can act upon any stl container when given an iterator.
best analog that comes to mind is std::make_heap.

i just cant wrap my head around how to do that...

Just define your operator ():

Code:

class SomeProcess
{
public:
	template <typename Iterator>	
	const SomeProcess& operator ()(Iterator pos, Iterator end)
	{
		// do something useful...
		return *this;
	}

	template <typename Container>	
	const SomeProcess& operator ()(Container& box)
	{
		return (*this)(box.begin(), box.end());
	}
};

I chose to return a reference to the functor (standard approach), but you can return whatever you like - even void.

Oh, and if you design a functor to operate on an object within a container, you could use it in functions like std::for_each, etc.