[pjmlp]

Additionally:

- Proper arrays with bound checking, which can locally be turned off, if required for performance reasons

- Explicit operation for converting arrays into pointers

[nwmcsween]

-fstack-protector && -D_FORTIFY_SOURCE=2

[pjmlp]

Where is that defined in the C standard?

Because you see, if it is compiler specific, it is not part of the language.