Hi again as any yesterday trackers will know, I'm interested for programming Concurent C++ Data Structures with g++ and the Qt as UI

• I curently aim installing Kubuntu 12.04 to have "embeded" the g++ 4.6.3
  The Kubuntu 10.10 with g++ 4.4.5 won't compile lamda functions and who knows what else.

• Also i intend making a clear instalation and no VM Ware cause I was informed in deep CPU/RAM isnt managed the same "naturally". So to avoid any problems. A 10GB partition in my Vista will be enough i believe
  I won't forget last year when compiled a 80 hours project "DBMS-scratch" in Dev Wvista, was crashing in any other PC due to dev's probs with pointers management!

• I also want to use Qt UI for my Project. Its the best and most popular I'm told. Wrong?

So for these, is Kubuntu distribution the best or shall i chose another?

• Lastly i would chose another if it has a latest g++ version than 4.6.3 preinstalled. Fedora 17 has 4.7
  My only fear is that with a most state of the art g++ will have probs with classic code.
  I saw many who want to backwards their gcc versions to 4.4 4.3 and so.

Hi, I'm not a developer anymore, used to be before taking up system administration. However as a solid and stable developing platform Slackware Linux comes to mind as it has already got it's reputation of being one.

Don't take my suggestion as a holy grail, you'll get a lot of good suggestions from long time programmers right here.

Regards.

Hi, "Best" is very subjective, all I'll say on this subjet is : "I like it" If testing more than one g++ version is a priority, I recommend Gentoo. It takes a while to set up, but the ability to have multiple gcc versions installed at once is really great; an the documnatation is great. Installing with full debug packages is also a piece of cake (in case you find a bug in Qt).
Now, take this with a grain of salt a) because I'm not a hardcore programmer, b) because with gentoo system administration will become a must. I'll just say that it saved my but this semester : my gentoo was at gcc-4.6, at school we're still on gcc-4.4. the older version being only one command away (without changing the default version) was priceless.

Serafean

The BEST would be one that YOU build from source
gentoo
Slackware
LFS

however

A Qt4 centric major distro would be OpenSUSe 12.1
that is if you do not shoot/kill/pull hair out from YAST

What would you mean qt4 centric? Having preinstalled Qt framewor? Or just that th OS UI itself is with Qt4?
( Whats YAST lool )

Slackware i think has no UI PrinceCruise not?

Slackware comes with several window managers and desktop environments, including KDE.

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That's as true as getting some virgins in heaven after suicide bombing innocent people. Jokes apart, Slackware by default comes with KDE, XFCE, Fluxbox, fvwm, Windowmaker and mwm. It's on you if you want to directly boot in a graphical desktop by changing to init level 4.

For clearing any doubts, presenting you the mega Slackware screenshot thread- Slackware 13.37 release notes-
Have fun!

Regards.

EDIT : Darn, I'm a slow typer.