howdy~
i used to consider NULL as general var for any type but nowdays found some problems occured when i did this in my class implementation, ie a method called "find" which purpose is to search the list specifed for certain value and return the position found or NULL otherwise. but when i return NULL my compiler report an error which said there was a type mismatch, which meant we cant return NULL as another type. so what can we do when we want NULL can be returned and satisfy any type ?
note: finde method return a template type so it will only be defiend when run-time comes.