KDE Plasma 5.26 Eyes Using C++20 Features

[phoronix]

Phoronix: KDE Plasma 5.26 Eyes Using C++20 Features

KDE developers are looking at possibly making use of C++20 language features within the Plasma 5.26 desktop and the newer C++ usage could work its way to other KDE components with time too...

https://www.phoronix.com/scan.php?page=news_item&px=KDE-Plasma-5.26-CPP20

[Aryma]

why do we need to care about people who refuse to update or use outdated distro?

[NobodyXu]

why do we need to care about people who refuse to update or use outdated distro?

Maybe the maintainer in debian/ubuntu can use gcc 11 to compile kde and backport it.

[ermo]

Given that neither clang nor gcc appear to fully* support the c++20 standard, perhaps this is a smidgen premature?

*: source

[ducakar]

Given that neither clang nor gcc appear to fully* support the c++20 standard, perhaps this is a smidgen premature?

*: source

It looks like they don't want to go full in with C++20 but primarily use it for coroutines. Async programming became quite widespread and mainstream in the last years. C# & JS have been supporting it for years, Go is built around its goroutines, (stable) Rust recently got async/await, Linux got uring buffer ...

[klapaucius]

Given that neither clang nor gcc appear to fully* support the c++20 standard, perhaps this is a smidgen premature?

*: source

Being KDE an open source project, it shouldn't be a problem to switch to a newer release of compiler + std library, even if gcc were to change its ABI.

[usta]

why do we need to care about people who refuse to update or use outdated distro?

because of the main target : Users
Not all users prefer to use latest distros and you couldnt ignore most of users prefer to use lts versions of distros such as
ubuntu 16.04. The problem begins with distros prolong their lts support times double than it has to be. I can understand those long
lts support times for server and iot systems but for desktop it is a little problematic to switch good gems.
Especially last 2 years linux and most of new shiny technological things get inside our life and those long lts supports made things a little diffucult for devs
because they need more users. The main thing is to have more users not to have lastest good things that make devs life easier

[oleid]

because of the main target : Users
Not all users prefer to use latest distros and you couldnt ignore most of users prefer to use lts versions of distros such as
ubuntu 16.04.

If you use a LTS distro for - well - stability reasons, how likely is it to build & use bleeding edge desktop packages? Does not compute.

[MorrisS.]

Improve, improve please!

[pipe13]

because of the main target : Users
Not all users prefer to use latest distros and you couldnt ignore most of users prefer to use lts versions of distros such as
ubuntu 16.04. The problem begins with distros prolong their lts support times double than it has to be. I can understand those long
lts support times for server and iot systems but for desktop it is a little problematic to switch good gems.
Especially last 2 years linux and most of new shiny technological things get inside our life and those long lts supports made things a little diffucult for devs
because they need more users. The main thing is to have more users not to have lastest good things that make devs life easier

Can't speak to Ubuntu, but fwiw RHEL7/CentOS-7 (native gcc-4.8.5) have devtoolset-N-gcc-c++ development packages for N a small integer between 7 and 11 inclusive.
CentOS Stream 8 (native gcc-8.5.0) has gcc-toolset-9-gcc-c++, gcc-toolset-10-gcc-c++, gcc-toolset-11-gcc-c++
CentOS Stream 9 (native gcc-11.3.1) has gcc-toolset-12-gcc-c++
These allow one to compile and run relatively modern C++ applications on RHEL LTS systems. I've tested GUI apps that work Just Fine, but don't know about installing and running a complete desktop. But seems counterintuitive on an LTS.


Neither do I ubuntu, but recent gcc packages may be available there as well:

https://gist.github.com/application2000/73fd6f4bf1be6600a2cf9f56315a2d91#file-how-to-install-latest-gcc-on-ubuntu-lts-txt

https://askubuntu.com/questions/1263704/how-do-i-install-gcc-10-2-with-sudo-apt-get-install-gcc-x-g-x