How C's unscoped enums and `#define`s come in

Decided

D-0038, settled by the language’s author: part of spec §18. Older text cites it as 18.38.

An unscoped enumerator is also an untyped integer constant at the header’s scope, beside the enum itself: raylib’s IsKeyDown(int key) takes rl::KEY_A as it is, and .KEY_A still names the typed variant wherever the enum is wanted. An enum class keeps its enumerators behind its name. An object-like macro is a constant when its value can be typed, emitted by its own name: at M7a a number (an integer untyped, a float f32 with an f suffix and untyped without), with other expressions clang can type — RAYWHITE’s compound literal — to follow. Typed enumerators, which would need a cast at every raylib input call, were the alternative (§15.2)