Does this work at compile-time? One of the uses for countof is (somewhat ironically) doing a enum->string table where you want to enforce the table gets manual

Does this work at compile-time? One of the uses for countof is (somewhat ironically) doing a enum->string table where you want to enforce the table gets manually updated properly: enum Color { red, green, blue, num_colors }; const char *color_string[] = { "red", "green", "blue" }; static_assert(countof(color_string) == num_colors);