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bithacks
Peteris Krumins writes, “Bit hacks are ingenious little programming tricks that manipulate integers in a smart and efficient manner. Instead of performing some operation (such as counting the 1 bits in an integer) by looping over individual bits, these programming nuggets do the same with one or two carefully chosen bitwise operations.”
& - bitwise and
| - bitwise or
^ - bitwise xor
~ - bitwise not
<< - bitwise shift right
>> - bitwise shift leftfun here: http://www.catonmat.net/blog/low-level-bit-hacks-you-absolutely-must-know/
