On Tue, 2009-02-17 at 14:20 +0100, Rémi Forax wrote: > > 1. Is bitCount() called often and performance critical? There is a RFE > > (6378821) to intrinsify it and I am thinking about to implement it. > > > It's not related to BigInteger but the fastest multi-dispatch algorithm > that I know relies heavily on > bitCount too (on Long.bitCount). > So you have my vote :)
Interesting, do you have a pointer to an example algorithm? > > 2. Why is BigInteger using it's own implementation of bit-count > > (bitCnt()) instead of using Integer.bitCount()? > > > because Integer.bitCount() was introduced in 1.5 and BigInteger in 1.4. > BigInteger was not retrofited. Ohh, I missed that. Could someone fix that or should I propose a patch? -- Christian
