Re: small example, using complex variables in Ada

[Ludovic Brenta <ludovic@ludovic-brenta.org>]

On Jun 10, 5:48 pm, Colin Paul Gloster <Colin_Paul_Glos...@ACM.org>
wrote:
> On Wed, 9 Jun 2010, Ludovic Brenta sent:
>
> |     Two_Pi_Over_N : constant := 2 * Pi / N;|
>
> That is a good suggestion.
>
> |"     FOR k in X'range LOOP"                |
>
> No.

Why?

> |"         FOR m in data'range LOOP          |
>
> No. Loop down to zero.

Why?

> If utilizing FOR instead of WHILE, then utilize REVERSE.

Generally, FOR is much better than WHILE because, the instant you see
FOR, you know the loop is finite; the moment you see WHILE you must
look at the exit condition and the body of the loop before you know
whether it terminates or not.

> Additionally, loop unrolling should be considered.

I agree with this but the solution would be less general.

--
Ludovic Brenta.