>> Keeping a a pointer in a uintptr as a "reference" to something is safe iff it will never be casted back to a pointer. I think this means that the safe case is useless.
Storing any reference (read: address) of Go instance is unsafe because after when this operation ends then a stored address (as the uintptr value) can become not legal because any instance can be moved by GC into the other place (read: address). This is a reason why recommended to perform such operation inside a sigle expression. Eg. VALID e := unsafe.Pointer(uintptr(unsafe.Pointer(&x)) NOT VALID addr := uintptr(unsafe.Pointer(&x) e := unsafe.Pointer(addr) Explained addr := uintptr(unsafe.Pointer(&x) // Here stored `addr` already can be non valid e := unsafe.Pointer(addr) -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
