Good point. One minor caveat: ~16 years ago, in C99, C got variable-length arrays (VLAs). If you use the sizeof operator on a VLA, it is evaluated at runtime.

Good point. One minor caveat: ~16 years ago, in C99, C got variable-length arrays (VLAs). If you use the sizeof operator on a VLA, it is evaluated at runtime. Of course that doesn't change your argument; I just wanted to mention it for completeness' sake.