2014-12-30 17:14 GMT+01:00 [email protected] <[email protected]>: > > Le 30 déc. 2014 13:13, "Clément Bera" <[email protected]> a écrit : > > > > Hello Pharoers, > > > > I was wondering, is it a good practice to have negative hashes ? > > > > Based on the class comment of Object>>#hash > > > > "Answer a SmallInteger whose value is related to the receiver's > identity. [...]" > > > > The hash is a smallInteger and therefore can be negative. > > Why would this be a poor practice if seen as a set of bits? > > As long as it does its job for identifying buckets, it looks okay to me. > > More bits with good spreading is more space for the hashes. > > Now hash should be redefined along with equals if we run into large sets > to limit collisions. And I guess we wouldn't keep SmallInteger then. > > Why the question? >
Well I am fixing compiled method to support negative compiled method header and the compiled method hash may now be negative if its compiled method header is. That's why. Phil > > > > > Thanks for any answer. > > > > Clement >
