Re: sub-optimal code for packed boolean arrays -- bug or inherent limitation

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

Alinabi a �crit :
> While I used to be a candidate master
> once upon a time, I do not play at that strength anymore and I
> could benefit from the advice of a strong player (who might not
> be a programmer). For such a person B(i) := not B(i) is much
> easier to understand than B := B xor Bitborad_T(Shift_Left(1,
> i)).

Hmmm... that person will look at "Flip (B(I))", not at the details of 
the Flip function. Therefore, you should use whatever implementation is 
most efficient. But do not forget to make measurements, efficiency 
issues are often... surprising to say the least.
-- 
---------------------------------------------------------
            J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr