On Sat, 2002-08-31 at 21:27, Al Potter wrote: > > John <valhalla@computerdatasafe.com.au> writes: > > > > > On Friday 30 August 2002 00:41, Chip Turner wrote: > > > > To rpm, 1.61 and 1.061 are the same. But 1.6.1 and 1.0.6.1 are > > > > different. > > > > > > Try reporting that as a bug and see what the response is. > > > > But it isn't a bug. It's just how the algorithm works. > > No. > > That makes it either a documented bug, or a broken-by-design "feature". > > You're posting from somewhere in Redmond, right? No, the RPM version compare algorithm is very simple, and well documented. It does the best it can given that is has to handle all the different versioning schemes used by different programs with a single function. It gets it "right" probably >90% of the time. The challenge is that if you were to ask whether 1.001 and 1.1 are equal the answer is no when comparing them as floating point numbers. However, 1.1 and 1.10 are the same thing if you compare as floating point numbers, but, in many versioning schemes they are different, and similarly 1.101 and 1.1005 are ambiguous as to how they compare. So, no this isn't a bug, nor is it broken-by-design. If you can come up with an algorithm that does a better job and is as fast as the current one, please post it. The current one is a step above some of the other algorithms available, but does, as you noted, have some unusual corner cases. Thanks. Peter _______________________________________________ Redhat-devel-list mailing list Redhat-devel-list@redhat.com https://listman.redhat.com/mailman/listinfo/redhat-devel-list
