Regis St-Gelais wrote:
"Luc Le Blanc" <[EMAIL PROTECTED]> a écrit dans le message de news:
[EMAIL PROTECTED]
Maybe someone knows (perhaps Ben ;) about the optimization of float
operations under CodeWarrior 9.3:
Is dividing by 100.0 as fast (or slow) as multiplying by 0.01 ?
Is multiplying by 1.0 costlier than checking for == 1.0 (and then not
multiplying) ?
I am trying to speed up a graph draw procedure that involves a lot of
computations.
--
Luc Le Blanc
Luc,
In general, when you can afford the range limitation, its mutch faster to
use offsetted (or scalled) integers.
I use shifted integers whenever I can, but no, here I need the
precision, hence my use of floats. I know divisions tend to be costlier
than multiplications, but I was wondering whether any optimization is
performed.
--
Luc Le Blanc
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