September 2011 - Pharo-dev - lists.pharo.org

Re: [Pharo-project] Two objects with same hash

by Marcus Denker

On Sep 23, 2011, at 1:08 PM, Denis Kudriashov wrote: > Hello, > > I use hash message to generate unique object id. (unique between current memory objects). > And I catch situation when two objects has same hash value. Objects has been created in loop almost at same time. > > So my question - is it really possible? Yes, easily, as there are only 12 bits for the hash, there are only 4096 different hash values. This means that a hash is *not* at all a UUID, and all hashing data structures need to be optimized for the case of hash collision, as it will happen a lot. Marcus -- Marcus Denker -- http://marcusdenker.de

Sept. 23, 2011

[Pharo-project] Two objects with same hash

by Denis Kudriashov

Hello, I use hash message to generate unique object id. (unique between current memory objects). And I catch situation when two objects has same hash value. Objects has been created in loop almost at same time. So my question - is it really possible? Can it be bug in my current VM which I used? (it is cog but very old) What you can recomment me for unique object id? Best regards, Denis

Sept. 23, 2011

[Pharo-project] [update 1.3] #13310

by Marcus Denker

13310 ----- Issue 4853: System update morphic notifier should not be shouted http://code.google.com/p/pharo/issues/detail?id=4853 -- Marcus Denker -- http://marcusdenker.de

Sept. 23, 2011

[Pharo-project] [update 1.4] #14162

by Marcus Denker

14162 ----- Issue 4836: Reference to PluggableListMorphOfMany http://code.google.com/p/pharo/issues/detail?id=4836 Issue 4835: Undeclared ref to TextStyleFontSelectorDialogWindow http://code.google.com/p/pharo/issues/detail?id=4835 Issue 4853: System update morphic notifier should not be shouted http://code.google.com/p/pharo/issues/detail?id=4853 -- Marcus Denker -- http://marcusdenker.de

Sept. 23, 2011

Re: [Pharo-project] thoughts of a tired but happy man...

by StÃ©phane Ducasse

tx I like http://www.google.de/imgres?imgurl=http://3.bp.blogspot.com/_E_o_0Bdm4GA/TD… On Sep 23, 2011, at 10:00 AM, Helene Bilbo wrote: > > StÃ©phane Ducasse wrote: >> >> We know where we want to go, sometimes the system does not get the shape >> we want. but each little peebles after the other >> one we shape it. Now you can also help to make it better. >> > > I thought of Pharo (because of the Smalltalk-Balloon) when looking at one of > my favourite paintings âBalloon Siteâ by Dame Laura Knight. It emphasizes > the community effort - in a slightly emotive way :) > > Have a look: > http://www.google.de/search?q=dame+laura+knight+balloon&um=1&ie=UTF-8&tbm=i… > > http://forum.world.st/file/n3836100/laura_knight_balloon_site.jpg > > -- > View this message in context: http://forum.world.st/thoughts-of-a-tired-but-happy-man-tp3831201p3836100.h… > Sent from the Pharo Smalltalk mailing list archive at Nabble.com. >

Sept. 23, 2011

Re: [Pharo-project] thoughts of a tired but happy man...

by Helene Bilbo

StÃ©phane Ducasse wrote: > > We know where we want to go, sometimes the system does not get the shape > we want. but each little peebles after the other > one we shape it. Now you can also help to make it better. > I thought of Pharo (because of the Smalltalk-Balloon) when looking at one of my favourite paintings âBalloon Siteâ by Dame Laura Knight. It emphasizes the community effort - in a slightly emotive way :) Have a look: http://www.google.de/search?q=dame+laura+knight+balloon&um=1&ie=UTF-8&tbm=i… http://forum.world.st/file/n3836100/laura_knight_balloon_site.jpg -- View this message in context: http://forum.world.st/thoughts-of-a-tired-but-happy-man-tp3831201p3836100.h… Sent from the Pharo Smalltalk mailing list archive at Nabble.com.

Sept. 23, 2011

[Pharo-project] [update 1.3] #13309

by Marcus Denker

13309 ----- Issue 4850: Undeclared var textMorph in StringHolder http://code.google.com/p/pharo/issues/detail?id=4850 -- Marcus Denker -- http://marcusdenker.de

Sept. 23, 2011

[Pharo-project] [update 1.4] #14161

by Marcus Denker

14161 ----- Issue 4848: Fixing comment display in changeset http://code.google.com/p/pharo/issues/detail?id=4848 -- Marcus Denker -- http://marcusdenker.de

Sept. 23, 2011

[Pharo-project] [update 1.3] #13308

by Marcus Denker

13308 ----- Issue 4609: Syntax highlighting broken http://code.google.com/p/pharo/issues/detail?id=4609 -- Marcus Denker -- http://marcusdenker.de

Sept. 23, 2011

Re: [Pharo-project] what are the frameworks to develop 3d interactive world like codecity in Pharo

by Marcus Denker

On Sep 22, 2011, at 11:16 PM, Frank Church wrote: > > Aren't OpenCobalt, http://www.opencobalt.org/ , http://en.wikipedia.org/wiki/Open_Cobalt, and Croquet, http://en.wikipedia.org/wiki/Croquet_Project, projects running along those lines? > > According to wikipedia OpenCobalt is the continuation of Squeak. > Is OpenCobalt actively developed? To me it looked like it died quickly after all the technical people left to do Qwaq... Now OpenQwaq is GPL, so we will not even think about it as it will make all our thoughts GPL, too. Marcus -- Marcus Denker -- http://marcusdenker.de

Sept. 23, 2011