#include "foo.h" OSDefineMetaClassAndStructors( Foo, OSObject ) // Index 0 has been replaced with a method OSMetaClassDefineReservedUsed(Foo, 0) OSMetaClassDefineReservedUnused( Foo, 1 ) OSMetaClassDefineReservedUnused( Foo, 2 ) OSMetaClassDefineReservedUnused( Foo, 3 ) int Foo::foo() { return 0; } int Foo::fooUsed0() { return 0; } int foo() { Foo* foo = new Foo(); return foo->foo() + foo->fooUsed0(); }