#include "osobject.h" class Foo : public OSObject { OSDeclareDefaultStructors( Foo ) public: // Override from OSMetaClassBase to let us find this slot in the vtable virtual void placeholder() { } OSMetaClassDeclareReservedUnused(Foo, 0); OSMetaClassDeclareReservedUnused(Foo, 1); OSMetaClassDeclareReservedUnused(Foo, 2); OSMetaClassDeclareReservedUnused(Foo, 3); };