Author: Rémi Coulom
Date: 01:30:09 10/23/00
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On October 23, 2000 at 01:09:02, Landon Rabern wrote: >is it faster to cast to a char or to AND by 0xff, or to do they take the same >number of clock cycles? > >Thanks, > >Landon W. Rabern I would give this general advice : - Use int everywhere you need speed (ie, do not cast to char), even if data would fit in a short or a char. - If you do not know which is faster, time a large loop for both and you will know (it has dangers, but it will generally give you a good order of magnitude of the difference). This kind of result is probably machine/compiler dependent. A good compiler might generate exactly the same code for both if what you do is really equivalent. Remi
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