Update ntrtl.h: Add offset macros
#ifndef _NTRTL_H
#define _NTRTL_H
+#define RtlOffsetToPointer(Base, Offset) ((PCHAR)(((PCHAR)(Base)) + ((ULONG_PTR)(Offset))))
+#define RtlPointerToOffset(Base, Pointer) ((ULONG)(((PCHAR)(Pointer)) - ((PCHAR)(Base))))
+
// Linked lists
FORCEINLINE VOID InitializeListHead(
