Victor Surfer wrote: [...] > In the for loop, the same logic repeats 4 times, why? Can it no repeat?
It's to improve performance; the magic keyword to lookup for more information is 'loop unrolling'. -- ┌─── ｄｇ＠ｃｏｗｌａｒｋ．ｃｏｍ ───── http://www.cowlark.com ───── │ "Parents let children ride bicycles on the street. But parents do not │ allow children to hear vulgar words. Therefore we can deduce that │ cursing is more dangerous than being hit by a car." --- Scott Adams
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