> Pointers are integers on (most) real hardware. I'm curious. Can you elaborate on "most"? The closest thing I know of to an exception is ARM's memory tagging

> Pointers are integers on (most) real hardware. I'm curious. Can you elaborate on "most"? The closest thing I know of to an exception is ARM's memory tagging extension stuff, [1] and I'm not sure if that qualifies because it looks like the actual checking of the tag is done by compiler-emitted assembly rather than automatically by the hardware. [2] I suppose it at least violates the idea that casting the pointer to an integer type doesn't change the value and still allows you to sort addresses via a simple <. [1] https://security.googleblog.com/2019/08/adopting-arm-memory-tagging-extension.html https://security.googleblog.com/2019/08/adopting-arm-memory-... [2] https://clang.llvm.org/docs/HardwareAssistedAddressSanitizerDesign.html https://clang.llvm.org/docs/HardwareAssistedAddressSanitizer...