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By: a guest on Jul 29th, 2012  |  syntax: None  |  size: 0.17 KB  |  hits: 14  |  expires: Never
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  1. How to efficiently calculate a modulus in C by hand?
  2. unsigned int modulus = (a - (INT_FLOOR(a / b) * b) + b) % b;
  3.        
  4. unsigned int modulus = (a - (a & ~(b-1)) + b) & (b-1);
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