C + + points to member function pointer issues

member function pointers are different from regular pointers, and a pointer to a member variable does not point to a memory location. It is usually the clearest practice to see pointers to data members as an offset.

Class Ru_m {public:    typedef int (ru_m::* p) ();    P Get_m ();    int show ();}; int Ru_m::show () {    return 10000;} Ru_m::p ru_m::get_m () {    ru_m::p vc;//Error When an object is pointing to a relative address, a non-memory address//So, the ru_m->show fetch operation is not valid in the C + + standard, but ru_m:: Show for pointing to a specific member function, non-object, for actual memory address//But in Windows Ru_m->show can be normal, let people no language.   vc=& (ru_m->show);    vc=&ru_m::show;    return VC;}

Windows is different from Linux ...

C + + points to member function pointer issues