Hi all,(adsbygoogle = window.adsbygoogle || []).push({});

I am wondering is there a way to count the number of bits to the left or right of a given 1 in a 32-bit integer?

For example, if I give the function the number 32 = 0b100000, there are 5 bits to the right of the 1 and hence, 26 bits to the left of the 1.

The catch is, is there a way to do this by simply using bit operations? i.e. no loops or conditionals? Bit operations include: & ^ | << >> ! and ~

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Bit Operation Counting

**Physics Forums | Science Articles, Homework Help, Discussion**