Derived class question

Newsgroup: comp.lang.c++

Subject: Derived class question

From: swilks06@...

Date: Fri, 5 Jul 2013 14:15:33 -0700 (PDT)



I'm trying to create a derived class called DotctorType from a base class called PersonType. I thought I was doing everything correctly, but when I complied the code I had several IntelliSense errors to pop up. I can't see what's causing the errors. Can anyone else see what I'm doing wrong? Here is the code:



01#include <string>

02#include <iostream>

03using namespace std;

04

05class PersonType

06{

07public:

08 // Function to output the first name and the last name.

09 void print() const;

10

11 //Function to set the first name and the last name.

12 void setName(string first, string last);

13

14 //Function to return the first name.

15 string getFirstName() const;

16

17 //Function to return the last name.

18 string getLastName() const;

19

20 // Constructor to set the first name and the last name.

21 PersonType(string first="", string last="");

22

23private:

24 string firstName; // Variable to store the first name.

25 string lastName; // Variable to store the last name.

26};

27

28// Function to output the first name and the last name.

29 void PersonType::print() const

30 {

31 cout<<firstName<< " "<<lastName<<endl;

32 }

33

34 //Function to set the first name and the last name.

35 void PersonType::setName(string first, string last)

36 {

37 firstName = first;

38 lastName = last;

39 }

40

41 //Function to return the first name.

42 string PersonType::getFirstName() const

43 {

44 return firstName;

45 }

46

47 //Function to return the last name.

48 string PersonType::getLastName() const

49 {

50 return lastName;

51 }

52

53 // Constructor to set the first name and the last name.

54 PersonType::PersonType(string first, string last)

55 {

56 setName(first, last);

57 }

58

59class DotorType : public PersonType

60{

61private:

62 string drtype;

63

64public:

65 string getSpeciality() const;

66 void setSpeciality(string dtype);

67 DoctorType(string first="", string last="", string type="");

68

69};

70

71string DoctorType::getSpeciality();

72{

73 return drtype;

74}

75

76void DoctorType::setSpeciality(string dtype)

77{

78 drtype = dtype;

79}

80

81

82DoctorType::DoctorType(string first="", string last="", string type="")

83 : PersonType(string first="", string last="")

84{

85 setSpeciality(type);

86}













********And here are the errors:

Error 1 error LNK2001: unresolved external symbol _mainCRTStartup`

Error 2 error LNK1120: 1 unresolved externals

3 IntelliSense: explicit type is missing ('int' assumed) (Line 67)

4 IntelliSense: name followed by '::' must be a class or namespace name (Line 71)

5 IntelliSense: expected a declaration (Line 71)

6 IntelliSense: name followed by '::' must be a class or namespace name (Line 76)

7 IntelliSense: identifier "drtype" is undefined (Line 78)

8 IntelliSense: name followed by '::' must be a class or namespace name (Line 82)

9 IntelliSense: expected a '{' (Line 83)

10 IntelliSense: identifier "setSpeciality" is undefined (Line 85)

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