1. A machine-readable non-transitory storage medium having instructions therein, which when executed by a machine, cause the machine to perform a method, the method comprising: loading a pointer for a data structured according to a type, the structured data addressable in a memory via an address, the pointer specifying both the address and the type of the structured data; updating the pointer via arithmetic operations on the pointer with an identifier identifying a known type for determining if the type matches the known type without compare and branch operations; and loading data addressed by the updated pointer, wherein the structured data is loaded if the type matches the known type, and wherein a hardware trap handler is activated if the type does not match the known type.