How to call an implementation with variable number of arguments?

Question

To simplify, let's say I have a function like that

void myFunc(id _self, SEL _cmd, id first, ...)
{

}

In that method I wanna call the implementation(imp) on the superclass of _self. I can reach that IMP with this code:

Class class = object_getClass(_self);
Class superclass = class_getSuperClass(class);
IMP superimp = class_getMethodImplementation(superclass, _cmd);

now, how can I do to call that imp ?

Answer 1

Just call it using variable arguments:

superImp(self, _cmd, argument1, argument2, argument3, etc...)

IMP is already typedef'd as

typedef id (*IMP)(id, SEL, ...);

So you can call it with variable arguments with no issue.