Member Function Pointer...
Well, this is starting to annoy me and now it is preventing my project from continuing on. I want to have member function pointers that can still access the members of the class. For example:
I know this isn't possible (without the function being static), but what other alternatives are there (not including global variables, if possible)?Code:class FOO { private: int a; public: void TEST() { return a; }; // how do I get a pointer to this? };
Thanks.
Code:class FOO { private: int a; public: int TEST() { return a; }; // how do I get a pointer to this? }; int _tmain(int argc, _TCHAR* argv[]) { FOO afoo; int (FOO::*fp)()= &FOO::TEST; (afoo.*fp)(); return 0; }
Last edited by m37h0d; 11-06-2009 at 07:40 AM.
Unlike a normal pointer, which points at an absolute address, a "pointer to member" is relative to some object. A "pointer to member" carries no information about the object it will act on.
On its own, therefore, a pointer to member is unusable. The second bit of information needed is the object it is relative to. Hence the need for "(anObject.*a_member_pointer)()" method of use.
