Re: Need help on bit operations define
From: Felipe Magno de Almeida (felipe.almeida_at_ic.unicamp.br)
Date: 08/30/04
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Date: 30 Aug 2004 05:03:28 GMT
MakisGR wrote:
> I'm having trouble understanding what the following define does. Can
> anyone provide some assistance?
>
> #define SetBits(bits,pos) (((bits)[(pos) >> 3]) |= (1 << ((pos) &
> 7)))
What it does is:
if 2^pos is less than 8, then sets bits[pos/8] with 2^pos, else
bits[pos/8] remains the same.
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Felipe Magno de Almeida
Ciencia da Computacao - Unicamp
felipe.almeida@ic.unicamp.br - UIN: 2113442
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