Wow, that's new to me! Like a macro in languages I'm used to, but smarter. This is key in contextualizing the "it's a pointer" part of the explanation. It sound

Wow, that's new to me! Like a macro in languages I'm used to, but smarter. This is key in contextualizing the "it's a pointer" part of the explanation. It sounds like the size of an array is never intrinsic to it, as a data type, regardless of whether what we've got is a pointer. What's important is that sizeof is compile-time, so it can only know the array size in contexts where it can be determined at compile time.