C takes on many dialects based on specialization. Compare code from the following, and you will see a range from trivial to understand to WTF. These are all real-world applications:

- Linux kernel (events) - https://github.com/torvalds/linux/blob/master/kernel/events/...

- Arm CMSIS - (16-bit math) - https://github.com/ARM-software/CMSIS_5/blob/develop/CMSIS/D...

- Numerical Methods in C - (Jacobian FP) - https://github.com/saulwiggin/Numerical-Recipies-in-C/blob/m...

- GNU 'ls' Command - https://github.com/coreutils/coreutils/blob/master/src/ls.c

- Gstreamer - (De-facto media streaming) - https://github.com/GStreamer/gstreamer/blob/master/gst/gstel...

GStreamer is my favorite because it basically creates VTables like C++ but calls them Klasses (based on Gnome), and it is just a brilliant framework in general, but an utter perversion of C IMHO.