Re: Ada Recursion with strings

[Jean-Pierre Rosen <rosen@adalog.fr>]

Maciej Sobczak a �crit :
> Buffer_Size := Get_Buffer_Size_In_Bytes;
> Buffer_Bits := Buffer_Size * 8;
> 
> Is there any benefit from making the above more verbose with
> additional named constant?
> Or would it be confusing to anyone to see literal 8 (or some formula
> that is build around it) in representation clause? I don't think so.
Agreed. An even more convincing case of where you should *not* use named 
constants is X**2. An abuse of the rule "don't use literals" could not 
produce anything but X**Two, which is in no way better...

The rule should be: if the number has a logical meaning give it a name 
(i.e. if there are 4 people in a car, call it People_In_Car, not 4). But 
if it is a 2, and cannot change under any condition, by all means, call 
it "2" !

(and yes, with AdaControl, you can specify exceptions to the rule that 
forbids literals, like as exponent for example).
-- 
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            J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr