On page 52, the listed function prototype for `objc_msgSend()` differs from the [documented function prototype](https://developer.apple.com/documentation/objectivec/1456712-objc_msgsend): `void objc_msgSend(is self, SEL cmd, ...)` Should return id: `id objc_msgSend(is self, SEL cmd, ...)`
On page 52, the listed function prototype for
objc_msgSend()differs from the documented function prototype:void objc_msgSend(is self, SEL cmd, ...)Should return id:
id objc_msgSend(is self, SEL cmd, ...)