IBM announced their intentions on the LLVM several years ago. It’s a win/win as they can do more with less. There is a huge community of Clang/LLVM committers who are top notch engineers.
The announcement had the following sentence which may elude to future plans to support data sets. https://lists.llvm.org/pipermail/llvm-dev/2020-June/142174.html "The tentative plan is to initially support the z/OS Unix System Services (z/OS UNIX) interface with EBCDIC and ASCII 64-bit code generation” IMO, the majority of C/C++ programmers on z/OS who are doing active development don’t care about MVS data sets. I’ve spend over a decade building C/C++ applications using make or CMake in a shell. To me having to run a batch job and then use SDSF or browse a data set for viewing listings is unproductive. To millennials using JCL to compile a program is weird. It depends on your experience and perspective. These modern compilers matter a lot more the C++ programmers then C. Modern C++ is a new language and XL C++ does not support it. From IBM’s POV, if the open source community can do 70% of the lifting they have a great result. > On 11 May 2023, at 12:50 am, Phil Smith III <li...@akphs.com> wrote: > > Charles Mills asked: >> Question: what are the advantages and disadvantages of XL C/C++ 2.4.1 >> W/D versus Open XL C/C++? Why might I choose to use one versus the >> other? > > What I got from David’s note is that the later two versions are more modern > and thus more compliant with current C standards. > > The subtext is that IBM wants to stop maintaining it, figures maintaining a > port of CLANG is cheaper/easier. Which isn’t necessarily wrong, if it doesn’t > lose the traditional MVS “side” usage, as it currently does. I’m faintly > optimistic that continuing the same numbering means the intent is there to > re-converge them. Naïve? > > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
