wlav

That code that doesn't compile is generated in CallFunc (ie. ROOT/meta, a portion of which lives in cppyy-backend, yes, hence this problem also shows up in cppyy master). CallFunc reconstructs...

Yes, the buffering is per function. It's being moved in several instances to the call context instead, but some of them are argument dependent (incl. converters for `std::string`) and take...

I'm not sure I follow? I'm not seeing `SizeOf("const int")` happening? The reason the code doesn't work is that there's no automatic numpy array -> initializer_list conversion. A tuple or...

Converting a numpy array to an `std::initializer_list` to create a temporary `std::span` with both the iteration and the temporary construction done through Python calls is always going to involve memory...

Yes and no ... the biggest problem is that many parts of the MPI API are preprocessor defines, which are not reflected (there's some minor support for them using `cppyy.macro()`...

Does the library exist on your system in the paths where `cppyy` is looking for it? I'd figure it exists, as "[WinError 1114] 动态链接库(DLL)初始化例程失败。" apparently translates as "[WinError 1114] Dynamic...

On Windows, I'd expect problems with 2.4.1 for recent versions of MSVC as MSVC dropped support for Clang9 (on which 2.4 is based) about a year ago. However, I would...

Did this just start with a recent cppyy upgrade or did it appear with a chance of compilers on the action build machine? My best guess is a mismatch of...

Is it possible to downgrade to C++17 by setting the envar `STDCXX=17` at installation time? I checked and release 3.1.x is the only release where C++20 is enabled by default...

It's very concerning that the change of C++ standard used for Cling would make such a difference. :( Interesting though that this is the first time that the "failed to...