functions returning pionters to functions

[ark at rabbit.UUCP]

Suppose I want to write a function f that returns a pointer to a
function returning an integer.  I first think about how I'm going to
invoke it.

	f(x)

is going to be a pointer to a function, so

	*f(x)

will be this function itself.  Well, since * binds less tightly than
function calls, I must invoke the (secondary) function by saying

	(*f(x))()

and this expression is now an integer.   If I want to write f, I therefore
say:

	inf (*f(x))()
		int x;
	{
		...
	}

Works like a charm.