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#define BITCOUNT(x) (((BX_(x)+(BX_(x)>>4)) & 0x0F0F0F0F) % 255) #define BX_(x) ((x) - (((x)>>1)&0x77777777) \ - (((x)>>2)&0x33333333) \ - (((x)>>3)&0x11111111)) -- really weird C code to count the number of bits in a word
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thewomble's journal
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http://www.amazon.co.uk/Hackers-Del
I would lend it to you but I'd probably never see it again! ;)