Thanks Marcus. Indeed, this is important Alexandre
On 27 May 2011, at 09:25, Marcus Denker wrote: > > On May 27, 2011, at 2:34 PM, Alexandre Bergel wrote: > >>> 3341 use #= for integer comparison instead of #== >> >> >> Hi! >> >> I checked the issue http://code.google.com/p/pharo/issues/detail?id=3341 >> but there is no explanation about the rational. Is there a technical reason >> to compare integer with = is better than with == ? Just wondering > > > This explains it more: > > http://bugs.squeak.org/view.php?id=2788 > > 002788: Bug: Use of == for arithmetic equality > Description From: [email protected] > Subject: Bug: Use of == for arithmetic equality > Date: 13. Februar 2006 18:37:42 GMT+01:00 > To: [email protected] > > I've been playing around with a new VM (heh, heh) which, for a while, > happened not to intern (ie force unique instances of) SmallIntegers. In this > case the use of == to mean arithmetic equality will not work properly. In my > opinion, all such occurrences in the system should be eliminated ASAP; == is > not an arithmetic compare in any Smalltalk I know of. While it may work with > small constants, it is simply wrong, and an especially bad example for > newbies to see. Besides failing in certain interpreters, it will fail in > Squeak itself if the integers are not small. > > I regret that I don't have time to fix these right now. However, if there is > a well-intentioned soul out there, he or she will perhaps find the method > below to be quite useful. It found 165 methods in my system with this pattern. > > > -- > Marcus Denker -- http://www.marcusdenker.de > INRIA Lille -- Nord Europe. Team RMoD. > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.
