unsigned policy (implicit conversions for complex?)

[Joel C. Salomon]

Walter Bright wrote:
> Derek Parnell wrote:
>> Characters are not numbers. 
> 
> That's an enticing point of view, and it sounds good. But Pascal has 
> that view, and my experience with it is it's one of the reasons Pascal 
> sucks.
> 
> Examples:
> 
> 1) converting text <=> integers
> 2) converting case

Neither are pointers numbers, but
	&a - &b
yields a usable number.  So long as
	x += c - 'a'
works, I don’t care if
	'a' * '3'
breaks.

> 4) using characters as indices (isspace() for example)

Is there a way to declare the index type of an array?

--Joel