Removing lowest order bit

Given a binary number, what is the fastest way of removing the lowest order bit? 01001001010 -> 01001001000 It would be used in code to iterate over the bits of a variable. Pseudo-code follows. while(bits != 0){ index = getIndexOfLowestOrderBit(bits); doSomething(index); removeLowestOrderBit(bits); } The possible languages I'm considering using are C and Java.
what is meant by fastest? execution time, implementaion time or understanding time?

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