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1 bits count in a variable

Question asked by binghy on Feb 23, 2015
Latest reply on Feb 23, 2015 by binghy

Hi everybody,

I was wondering if there was an integer function to count the number of 1 bits contained in a variable.

I saw the "clz" function allows to count the number of "leading 0 bits". If it was set as a function to count the number of "all the 0 bits", then I could obtain the number of 1 bits just by subtraction.

No other similar funtion, nor in the OpenCL specs nor in the Blas library.

Any suggestions?

 

Thanks in advance

 

Marco

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