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83

answers:

1
Q: 

Ideas for making a function for counting number of zero's in a bit string in C?

Can I make a function int bitParity(int x) that returns 1 if x contains an odd number of 0's using only these operators? ! ~ & ^ | + << >>

+2  A: 

Hey, it was exactly three clicks. google -> 1.st result - wiki/Parity_bit -> external link -> http://graphics.stanford.edu/~seander/bithacks.html#ParityNaive

Krab  2010-02-23 17:00:11

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