Sandbox/PointerToMember.cpp

   1 #include "PointerToMember.h"
   2
   3 #include <iostream>
   4 using namespace std;
   5
   6 namespace PointerToMember
   7 {
   8     struct Test {
   9         int num;
  10
  11         Test(int n)
  12         {
  13             this->num = n;
  14         }
  15
  16         void func()
  17         {
  18             cout << "func called, this->num = " << this->num << endl;
  19         }
  20     };
  21
  22     int Test::* ptr_num = &Test::num; // Pointer to a field of 'Test'.
  23     void (Test::* ptr_func)() = &Test::func; // Pointer to a method of 'Test'.
  24 }
  25
  26 void PointerToMember::tests()
  27 {
  28     Test t{ 42 };
  29     Test* pt = new Test{ 420 };
  30
  31     (t.*ptr_func)();
  32     (pt->*ptr_func)();
  33 }