Re: string operations

["Anders Wirzenius" <anders.wirzenius@pp.qnet.fi>]

"Robert Dewar" <robert_dewar@my-deja.com> wrote in message
news:8vbfns$do2$1@nnrp1.deja.com...
> In article <WE7S5.239$rj6.8595@read2.inet.fi>,
>   "Anders Wirzenius" <anders.wirzenius@pp.qnet.fi> wrote:
> > To me the example would have been even more revealing if
> > the Put statement had been written
> > Put(Character'Val(Character'Pos ('0') + N mod 10));
>
>
> Odd ... addition is after all commutative, can you explain why
> in this case a+b is clearer than b+a
>
> I personally prefer the form I had, because from an algorithmic
> point of view it is N mod 10 that is important, and
> the Character'Pos is a minor detail for keeping the types
> right ...

Ok. As i wrote, the example deals with both the algoritm of recursion and
the string handling.
I just emphasized the string handling more than as "a minor detail".  :-)

By the way. I hope miss Margit played a little with the example, as I did,
and switched the order of the statements in the procedure.

Anders