Сравнение постов

Различия между постами #134205 (05.05.2020 14:29) и #134206 (05.05.2020 14:41).
11#include
22
33class type_one
44{
55};
66
77class type_two
88{
99};
1010
1111class i_one
1212{
1313public:
1414 virtual void set (const type_one & val, int id) = 0;
1515};
1616
1717class i_two
1818{
1919public:
2020 virtual void set (const type_two & val) = 0;
2121};
2222
2323
2424
2525class i_one_two:public i_one, public i_two
2626{
27
};
28
27
28
// = = = = = = >>> Вот решение

2929

30
class OneTwo:public i_one_two

31
{

32
public:

33
  void set (const type_one & val, int id)

34
  {

35
    std::cout << "type_one value, id = " << id;

36
  }

37
38
  void set (const type_two & val)

39
  {

40
    std::cout << "type_two value\n";

41
  }

42
};

30
//public:

31
//    virtual void set (const type_one & val, int id) = 0;

32
//    virtual void set (const type_two & val) = 0;

33
};

34
35
36
class OneTwo:public i_one_two

37
{

38
public:

39
  void set (const type_one & val, int id)

40
  {

41
    std::cout << "type_one value, id = " << id;

42
  }

4343

44
45
int

46
main ()

47
{

48
  OneTwo ot;

44
  void set (const type_two & val)

45
  {

46
    std::cout << "type_two value\n";

47
  }

48
};

4949

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  i_one_two *i12 = &ot;

51
52
  i12->set(type_one (), 111); // error: request for member ‘set’ is ambiguous

53
  i12->set(type_two ());      // error: request for member ‘set’ is ambiguous

54
  return 0;

55
}

56
57
//==============================

58
main.cpp: In function ‘int main()’:

59
main.cpp:52:8: error: request for member ‘set’ is ambiguous

60
   i12->set(type_one (), 111);

61
        ^~~

62
main.cpp:20:16: note: candidates are: virtual void i_two::set(const type_two&)

63
   virtual void set (const type_two & val) = 0;

64
                ^~~

65
main.cpp:14:16: note:                 virtual void i_one::set(const type_one&, int)

66
   virtual void set (const type_one & val, int id) = 0;

67
                ^~~

68
main.cpp:53:8: error: request for member ‘set’ is ambiguous

69
   i12->set(type_two ());

70
        ^~~

71
main.cpp:20:16: note: candidates are: virtual void i_two::set(const type_two&)

72
   virtual void set (const type_two & val) = 0;

50
51
int

52
main ()

53
{

54
  OneTwo ot;

55
56
  i_one_two *i12 = &ot;

57
58
  i12->set(type_one (), 111); // error: request for member ‘set’ is ambiguous

59
  i12->set(type_two ());      // error: request for member ‘set’ is ambiguous

60
  return 0;

61
}

62
63
//==============================

64
main.cpp: In function ‘int main()’:

65
main.cpp:52:8: error: request for member ‘set’ is ambiguous

66
   i12->set(type_one (), 111);

67
        ^~~

68
main.cpp:20:16: note: candidates are: virtual void i_two::set(const type_two&)

69
   virtual void set (const type_two & val) = 0;

70
                ^~~

71
main.cpp:14:16: note:                 virtual void i_one::set(const type_one&, int)

72
   virtual void set (const type_one & val, int id) = 0;

7373                ^~~

74
main.cpp:14:16: note:                 virtual void i_one::set(const type_one&, int)

75
   virtual void set (const type_one & val, int id) = 0;

76
                ^~~

77
78
74
main.cpp:53:8: error: request for member ‘set’ is ambiguous

75
   i12->set(type_two ());

76
        ^~~

77
main.cpp:20:16: note: candidates are: virtual void i_two::set(const type_two&)

78
   virtual void set (const type_two & val) = 0;

79
                ^~~

80
main.cpp:14:16: note:                 virtual void i_one::set(const type_one&, int)

81
   virtual void set (const type_one & val, int id) = 0;

82
                ^~~

83
84