That's already noted at the end:

> The idea behind static_assert is great. You run a check that has no impact on the performance of the software, and may even help it. It is cheap and it can catch nasty bugs. It is not new to C, but adopting the C++ syntax is a good idea.

More accurately: C23 makes `static_assert` a keyword and remove `#define static_assert _Static_assert` in <assert.h>, so `#include <assert.h>` is no longer needed for `static_assert`. So the syntax was always supported since C11 but it's made more convenient to use.

fta "It is not new to C, but adopting the C++ syntax is a good idea."

The keyword is new though

Did that work at compile time?