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  1. #include <iostream>
  2.  
  3. class Ptr
  4. {
  5. public:
  6.     typedef void (*ptr_type) ();
  7.  
  8.     Ptr(const Ptr& value);
  9.     Ptr(ptr_type value);
  10.  
  11.     ptr_type GetPtr() const;
  12.     Ptr& operator=(const Ptr& value);
  13.     Ptr& operator=(ptr_type value);
  14.  
  15. private:
  16.    ptr_type value_;
  17. };
  18.  
  19. Ptr::Ptr(const Ptr& value) :
  20.     value_(value.value_)
  21. {
  22. }
  23.  
  24. Ptr::Ptr(ptr_type value) :
  25.     value_(value)
  26. {
  27. }
  28.  
  29. Ptr::ptr_type Ptr::GetPtr() const
  30. {
  31.     return value_;
  32. }
  33.  
  34. Ptr& Ptr::operator=(const Ptr& value)
  35. {
  36.     value_ = value.value_;
  37.     return *this;
  38. }
  39.  
  40. Ptr& Ptr::operator=(ptr_type value)
  41. {
  42.     value = value_;
  43.     return *this;
  44. }
  45.  
  46. class TestClass
  47. {
  48. public:
  49.     TestClass();
  50.  
  51.     static void TestFunction();
  52. };
  53.  
  54. TestClass::TestClass()
  55. {
  56.     Ptr myPtr = TestFunction;    //Diese Zeile geht NICHT!
  57.     Ptr myPtr2(TestFunction);    //Diese Zeile geht!
  58.     myPtr.GetPtr()();
  59. }
  60.  
  61. void TestClass::TestFunction()
  62. {
  63.     std::wcout << L"Geht doch!" << std::endl;
  64. }
  65.  
  66. int main()
  67. {
  68.     TestClass myTestClass;
  69.     std::wcout << L"Press any Key to exit!" << std::endl;
  70.     std::cin.get();
  71.     return 0;
  72. }
Success #stdin #stdout 0s 2848KB
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Standard input is empty
stdout
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Geht doch!
Press any Key to exit!
https://ideone.com/XYDP5
language:
C++14 (gcc 8.3)
created:
14 years ago
visibility:
public

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