Ye, sure, but Rust won’t compile a `foo(std::ptr::null())`, if the function is defined as `fn foo(b: &Baz)`. C doesn’t get that luxury. That is the point of the article.

  $ gcc -Wall -Werror -x c - << EOF
  void f(int x[static 1]){}int main(){f(0);}
  EOF
  <stdin>:1:37: error: null passed to a
      callee that requires a non-null argument
      [-Werror,-Wnonnull]
    1 | void f(int x[static 1]){}int main(){f(0);}
      |                                     ^ ~
  <stdin>:1:12: note: callee declares array
      parameter as static here
    1 | void f(int x[static 1]){}int main(){f(0);}
      |            ^~~~~~~~~~~
  1 error generated.