MySQL and MariaDB are a mixed of C++ and C nowadays [^2] [^1]. Most Database reimplementation nowadays are C++, Go or more recently (Rust).
> - message buses: DBus (C)
ZeroMQ is C++, Same for gRPC (reference of RPC nowadays), same for Thrift [^4]
> - games
Almost all triple A use the Unreal Engine or an home made engine in C++. Even Unity that brand itself as C# uses some C++ internally.
> distributed systems
Almost all Distributed system in the HPC world is C++ or Julia nowadays, with a bit of Fortran surviving.
> - AI runtimes
AI means often GPU usage, GPU usage means CUDA, meaning C++. That's valid for the today three main contenders (Tensorflow, pyTorch, MXNet ) and they all provide a python API on top of C++.
> Now let's add one obvious category which was suspiciously left out from this list: operating systems: Unix, BSDs, Linux, Plan 9, Illumos, GNU Mach, Windows NT, XNU --- there is almost no C++ here (and any C++ that there is in just the last two).
C++ is also in Fushia (Google) and BeOS/Haiku. But OS are mainly C (or Rust nowaday) because kernel space. Exception handling is problematic in kernel space.
I'm not debating that there are a lot of projects written in C++. I only argue that C is enough to be able to learn about state-of-the-art tech in this area.
I'm not even going to debate C++'s merits at this point. Everybody's had enough of that already. There are people who stick to it and there are those who bailed after a while. It's just that, if I have a choice, I won't work with the people who belong to the former group.
MySQL and MariaDB are a mixed of C++ and C nowadays [^2] [^1]. Most Database reimplementation nowadays are C++, Go or more recently (Rust).
> - message buses: DBus (C)
ZeroMQ is C++, Same for gRPC (reference of RPC nowadays), same for Thrift [^4]
> - games
Almost all triple A use the Unreal Engine or an home made engine in C++. Even Unity that brand itself as C# uses some C++ internally.
> distributed systems
Almost all Distributed system in the HPC world is C++ or Julia nowadays, with a bit of Fortran surviving.
> - AI runtimes
AI means often GPU usage, GPU usage means CUDA, meaning C++. That's valid for the today three main contenders (Tensorflow, pyTorch, MXNet ) and they all provide a python API on top of C++.
> Now let's add one obvious category which was suspiciously left out from this list: operating systems: Unix, BSDs, Linux, Plan 9, Illumos, GNU Mach, Windows NT, XNU --- there is almost no C++ here (and any C++ that there is in just the last two).
C++ is also in Fushia (Google) and BeOS/Haiku. But OS are mainly C (or Rust nowaday) because kernel space. Exception handling is problematic in kernel space.
[^1]: https:/github.com/MariaDB/server [^2]: https://github.com/mysql/mysql-server [^3]: https://zeromq.org/ [^4]: https://github.com/facebook/fbthrift