Lesser Known C Features (d3s.mff.cuni.cz)

VLAs were made optional in C11 and no longer required for ISO C compliance.

Google also sponsored the work to clean up the Linux kernel of their use.

I wish they removed trigraphs. They are removed from C++ since C++17. I hope they do that in a future C standard as well. Currently I switch to std=gnuXX in GCC solely for this reason (and sometimes to get access to some POSIX headers).

I knew about defined size ints (use them a lot in osdev) and _Bool (you don't have stdbool everywhere)