From: Jari Williamsson Date: 2007-12-04T00:07:36+09:00 Subject: Re: question about iterator Robert Klemme wrote: > Just a few picky remarks. :-) Sorting on the string representation, > while it may work, is unstable. It's better to sort based on members > because with your approach you create a dependency between to_s and > sorting which is neither necessary nor obvious. > > Also, I would only implement this in the class if it is the /default/ > order for instances of Cursus. And how about performance on using to_s when sorting? Each time an object is compared for the sort, 2 string conversions has to be done and put in the GC, etc? Has anyone made benchmarks on this? Best regards, Jari Williamsson