@ -14,7 +14,7 @@ ObjectClass Object_class = {
#ifndef NDEBUG
bool Object_isA(Object* o, const ObjectClass* klass) {
bool Object_isA(const Object* o, const ObjectClass* klass) {
if (!o)
return false;
const ObjectClass* type = o->klass;
@ -50,7 +50,7 @@ extern ObjectClass Object_class;
bool Object_isA(Object* o, const ObjectClass* klass);
bool Object_isA(const Object* o, const ObjectClass* klass);
#endif /* NDEBUG */