C is a little better than presented here because they add a header to the standard library with a #define in it that gives the new identifier a reasonable keywo

C is a little better than presented here because they add a header to the standard library with a #define in it that gives the new identifier a reasonable keyword; for example, you can access `_Bool` as `bool` if you `#include <stdbool.h>`. I actually think this is a reasonable compromise; you can opt in to the new "keyword" at the compilation-unit-level.