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0 pointsjcelerier5y ago0 comments

> That is also mind-numbingly absurd to force upon the vast majority who couldn't care less about the bleeding edge and want a stable platform to act as a fixe target without risking random ABI breakages.

but why would you have "random ABI breakages" ? there isn't any issue with using e.g. VS2010, 2012, 2015, 2017, 2019 to make a windows software for instance, so what makes you think Linux would be any different if you could install a compiler version of your choosing instead of the one fixed by Ubuntu / Debian / whatever. Why is it a problem for C/C++ but not for Go / Rust / every other native-compiled language in the universe ?

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rumanator5y ago

> there isn't any issue with using e.g. VS2010, 2012, 2015, 2017, 2019

You're conflating things and in the process making absurd comparisons. Windows is not Linux and GCC is not msvc++. GCC is very vocal on how they don't support ABI compatibility, and Microsoft was very vocal ensuring they enforce ABI compatibility from Visual Studio 2015 onward. There's a fundamental difference in multiple dimensions, which isn't bridged by mindlessly stating that GCC and mscv are both compilers.

ABI is the bane of C++. Why are you posting comments on a thread about C++ and the problems created by ABI if you are oblivious to this? The only thing you're managing to do is generate noise and make everyone waste their time with your posts.

> so what makes you think Linux would be any different

Because it is, and at many levels. Just the fact that you are entirely oblivious to this basic fact is enough to convince anyone not to bother with any further replies to this thread.

gpderetta5y ago

> GCC is very vocal on how they don't support ABI compatibility,

What? Apart from bugs, GCC has maintained backward compatibility for more than a decade, for both the compiler ABI and the standard library.

They were forced to break ABI for c++11 to implement the new string and list semantics, but the old ABI is still available.

jcelerierOP5y ago

> Windows is not Linux and GCC is not msvc++

That does not mean anything. Linux can be whatever people with enough free time want it to be. It's 100% possible to imagine a Linux-based system with a Windows-like userspace and pacing. Hell, technically you could just ship the Linux kernel, an init system, Wine and live in an almost windows-y world - even cl.exe works under wine.

> Why are you posting comments on a thread about C++ and the problems created by ABI if you are oblivious to this?

Because it's an entirely self-inflicted problem, caused by putting toolchains (among two thousand other things) in distros.

Again, why do people have no trouble shipping Rust which has zero ABI guarantees to ten year old Ubuntus and C++ couldn't ? The answer is, it totally can if you just let it and let go of shipping dev packages in distros, instead relying on C++-specific package managers such as conan or vcpkg for your dependencies.

I build my own software with latest versions of clang, Qt, boost and have no trouble distributing it to fairly old distros.

> Because it is, and at many levels.

yes, I'm asking about what could be, not what is ?

jfkebwjsbx5y ago

> GCC is very vocal on how they don't support ABI compatibility

Source? They very rarely break ABI. They even release ABI break fixes sometimes.

> Microsoft was very vocal ensuring they enforce ABI compatibility from Visual Studio 2015 onward.

They try to keep ABI stable, but nothing is promised until the actual releases happen.

Always expect a new ABI version at some point in the future!

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