Hi Amit,
The error message "error #858: type qualifier on return type is meaningless" points out that applying a type qualifier like const to the return type of a function pointer is not meaningful. In the context of your typedef declaration, the issue arises from trying to make the return type of the function pointer const void. Non-class rvalues (like primitives returned by functions) cannot be modified, so they inherently behave as if they are const, even without being explicitly declared as such.
Hope it helps!
