[Nickle] How to make min do the right thing?

[Carl Worth]

On Sep 16, Bart Massey wrote:
 > The other obvious alternative is to use
 > 
 >   real min2(real emptymin, real[*] vals) {

Thanks Bart. Passing in the return value for the degenerate case is a
useful idea.

It doesn't solve the entire problem, (since I still have to come up
with a maximum value to pass in, which might be hard), but it at least
pushes that aspect of the problem outside of a function as general as
min should be.

-Carl