Position of rightmost set bit | GeeksforGeeks

Position of rightmost set bit Write a one line C function to return position of first 1 from right to left, in binary representation of an Integer. I/P 18, Binary Representation 010010 O/P 2 I/P 19, Binary Representation 010011 O/P 1 Let I/P be 12 (1100) Algorithm: (Example 18(010010)) 1. Take two's complement of the given no as all bits are reverted except the first '1' from right to left (10111) 2 Do an bit-wise & with original no, this will return no with the required one only (00010) 3 Take the log2 of the no, you will get position -1 (1) 4 Add 1 (2) Program:

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