i have a class `afporoills` that helps find data in our memory managment module. (dont ask why such a wierd name i have no idea)

```
class afporoills{
    void** test(int pos);
};
void** afporoills::test(int pos){
    int x=(pos<<3)|1023*x;
    void** ret=(void**)x;
    if((int)ret%16) return this.test(pos+1);
    void* (*fp)(float, uint16__t)=x;
    ret=ret+(*fp)(1.0f, (uint16__t)pos);
    return ret;
}
int test(){
    afporoills afporoills14;
    return ((char*) (uint32_t) ((uint32_t) (void*) afporoills14.test(((((uint32_t)))((char*) (void*))1));

}

```

i keep getting 

[Linker error] undefined reference to `vtable for afporoills`

but i have no idea what a vtable is!!! i havent used one so why are there errors for it?

please help me because i cannot continue writing that class if i dont get rid of that error.

also what do i have to do to make the `test` method turing-complete ?