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Inheritance Hierarchy

  #1  
33 Days Ago
I'm having trouble with an inheritance hierarchy program. I have widdled this program down from a lot of errors to just 1 error. However, I can't seem to figure out how to correct it.

Here is the error message I'm receiving:
Help with Code Tags 
error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'void' (or there is no acceptable conversion)

Here is what I have:

Package.h

Help with Code Tags 
#ifndef Package_H
#define Package_H

#include <iostream>
#include <string>

using namespace std;

//The class Package is the base class for derived classes TwoDayPackage and OverNightPackage
  
class Package //begins class Package  
{  
public:  
    Package(const string &, const string &, const string &, const string &, const string &, const string &, const string &, const string &, const string &, const string &, double = 0.0, double = 0.0, double = 0.0); //constructor  
  
    //set and get functions for sender  
    void setSenderName(const string &);  
    string getSenderName() const;  
  
    void setSenderAddress(const string &);  
    string getSenderAddress() const;  
      
    void setSenderCity(const string &);  
    string getSenderCity() const;  
  
    void setSenderState(const string &);  
    string getSenderState() const;  
  
    void setSenderZip(const string &);  
    string getSenderZip() const;  
      
    //set and get functions for recipient  
    void setRecipientName(const string &);   
    string getRecipientName() const;   
  
    void setRecipientAddress(const string &);   
    string getRecipientAddress() const;   
  
    void setRecipientCity(const string &);   
    string getRecipientCity() const;   
  
    void setRecipientState(const string &);   
    string getRecipientState() const;  
  
    void setRecipientZip(const string &);   
    string getRecipientZip() const;  
      
    void setWeight(double);  
    double getWeight() const;  
    void setShip(double);  
    double getShip() const;  
    double calculateCost() const;  
  
private:  
    string senderName;  
    string senderAddress;  
    string senderCity;  
    string senderState;  
    string senderZip;  
    string recipientName;  
    string recipientAddress;  
    string recipientCity;  
    string recipientState;  
    string recipientZip;  
    double weight;  
    double shipCost;  
};

#endif

Package.cpp

Help with Code Tags 
#include <iostream>
#include <string>
using namespace std;

#include "Package.h"


Package::Package(const string & sname, const string & saddress, const string & scity, const string & sstate, const string & szip, const string & rname, const string & raddress, const string & rcity, const string & rstate, const string & rzip, double weight, double shipCost, double calculateCost)  
{  
    senderName = sname;  
    senderAddress = saddress;  
    senderCity = scity;  
    senderState = sstate;  
    senderZip = szip;  
    recipientName = rname;  
    recipientAddress = raddress;  
    recipientCity = rcity;  
    recipientState = rstate;  
    recipientZip = rzip;  
    setWeight(weight);  
    setShip(shipCost);  
}  
  
void Package::setSenderName(const string & sname)  
{  
    senderName = sname;  
}  
  
string Package::getSenderName() const  
{  
    return senderName;  
}  
  
void Package::setSenderAddress(const string & saddress)  
{  
    senderAddress = saddress;  
}  
  
string Package::getSenderAddress() const  
{  
    return senderAddress;  
}  
void Package::setSenderCity(const string & scity)  
{  
    senderCity = scity;  
}  
  
string Package::getSenderCity() const  
{  
    return senderCity;  
}  
  
void Package::setSenderState(const string & sstate)  
{  
    senderState = sstate;  
}  
  
string Package::getSenderState() const  
{  
    return senderState;  
}  
  
void Package::setSenderZip(const string & szip)  
{  
    senderZip = szip;  
}  
  
string Package::getSenderZip() const  
{  
    return senderZip;  
}  
  
void Package::setRecipientName(const string & rname)  
{  
    recipientName = rname;  
}  
  
string Package::getRecipientName() const  
{  
    return recipientName;  
}  
  
void Package::setRecipientAddress(const string & raddress)  
{  
    recipientAddress = raddress;  
}  
  
string Package::getRecipientAddress() const  
{  
    return recipientAddress;  
}  
  
void Package::setRecipientCity(const string & rcity)  
{  
    recipientCity = rcity;  
}  
  
string Package::getRecipientCity() const  
{  
    return recipientCity;  
}  
  
void Package::setRecipientState(const string & rstate)  
{  
    recipientState = rstate;  
}  
  
string Package::getRecipientState() const  
{  
    return recipientState;  
}  
void Package::setRecipientZip(const string & rzip)  
{  
    recipientZip = rzip;  
}  
  
string Package::getRecipientZip() const  
{  
    return recipientZip;  
}  
  
void Package::setWeight(double weight)  
{  
    weight = (weight < 0.0 ) ? 0.0 : weight;  
}  
double Package::getWeight() const  
{  
    return weight;  
}  
void Package::setShip(double shipCost)  
{  
    shipCost = ( shipCost < 0.0) ? 0.0 : shipCost;  
}  
  
double Package::getShip() const  
{  
    return shipCost;  
}  
  
double Package::calculateCost() const  
{    
    return weight * shipCost;  
}  


//The class TwoDayPackage is the first derived class from class Package
  
class TwoDayPackage : public Package  
{  
public:  
    TwoDayPackage(const string &, const string &, const string &, const string &, const string &, const string &,  
		const string &, const string &, const string &, const string &, double = 0.0, double = 0.0, double = 0.0); //constructor  
      
    void setFlatFee(double);  
    double getFlatFee() const;  
    void calculateCost() const;  
  
private:  
    double flatFee;  
};  
  
  
//The class OverNightPackage is the second derived class from class Package
  
class OverNightPackage : public Package  
{  
public:  
    OverNightPackage(const string &, const string &, const string &, const string &, const string &, const string &,
		const string &, const string &, const string &, const string &, double = 0.0, double = 0.0, double = 0.0); //constructor  
  
        void setFee(double);  
        double getFee() const;  
        void calculateCost() const;  
  
private:  
    double fee;  
};

PackageTest.cpp

Help with Code Tags 
#include <iostream>
#include <iomanip>
#include <conio.h>
#include <string>

using namespace std;
using std::setprecision;

#include "Package.cpp"


//Test File
  
int main()  
{  
    OverNightPackage box("John Doe", "789 Fire Street", "Hell", "MI", "48169", "Jane Doe", "987 Leg Sun Crossing", "Intercourse", "PA", "17534", 10.00, 1.50, .85);  
      
    TwoDayPackage parcel("John Doe", "789 Fire Street", "Hell", "MI", "48169", "Jane Doe", "987 Leg Sun Crossing", "Intercourse", "PA", "17534", 15.00, 1.05, 5.00);  
  
    cout << fixed << setprecision(2);  
      
	cout << "To ship a box with overnight delivery:\n"
         << "\nThe sender    " << box.getSenderName()  
         << "\n              " << box.getSenderAddress()
         << "\n              " << box.getSenderCity() << ", " << box.getSenderState() << "  " << box.getSenderZip() 
      
  
         << "\nThe recipient   " << box.getRecipientName()  
         << "\n                " << box.getRecipientAddress()
         << "\n                " << box.getRecipientCity() << ", " << box.getRecipientState() << "  " << box.getRecipientZip()  
         << "\nThe cost is   $ " << box.calculateCost()
      
      
	     << "\n\n\n\nTo ship a parcel with 2 day delivery:\n"
         << "\nThe sender    " << parcel.getSenderName()  
         << "\n              " << parcel.getSenderAddress()
         << "\n              " << parcel.getSenderCity() << ", " << parcel.getSenderState() << "  " << parcel.getSenderZip()  
      
  
         << "\nThe recipient " << parcel.getRecipientName() 
         << "\n              " << parcel.getRecipientAddress()
         << "\n              " << parcel.getRecipientCity() << ", " << parcel.getRecipientState() << "  " << parcel.getRecipientZip()
         << "\nThe cost is   $ "<< parcel.calculateCost() << endl;  
 
	_getch();

}


Does anyone know how to correct this issue?
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Re: Inheritance Hierarchy

  #2  
33 Days Ago
you're trying to 'cout' the return value of some method, but the method might be returning 'void'.
thanks
-chandra
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Re: Inheritance Hierarchy

  #3  
33 Days Ago
Any idea on how to fix this?
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Re: Inheritance Hierarchy

  #4  
33 Days Ago
parcel.calculateCost() and box.calculateCost() seems to be the culprits. In the derived class the methods calculateCost returns 'void'.
Last edited by Agni : 33 Days Ago at 2:27 am.
thanks
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Re: Inheritance Hierarchy

  #5  
33 Days Ago
This line:
<< "\nThe cost is $ " << box.calculateCost() is probably causing the problem. The function calculateCost() isn't returning anything (void). To solve the problem, you should delete the function declaration from TwoDayPackage and OverNightPackage. The class 'Package' already has a calculateCost-function, so why make 2 more?

[edit]Too slow .... what ^^ said.
Last edited by niek_e : 33 Days Ago at 2:34 am.
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Re: Inheritance Hierarchy

  #6  
33 Days Ago
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Originally Posted by Agni View Post
parcel.calculateCost() and box.calculateCost() seems to be the culprits. In the derived class the methods calculateCost returns 'void'.



When I change calculateCost to return 'double' I get 31 error messages. They are:

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error LNK2005: "public: __thiscall Package:ackage(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,double,double,double)" (??0Package@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@000000000NNN@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setSenderName(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setSenderName@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getSenderName(void)const " (?getSenderName@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setSenderAddress(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setSenderAddress@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getSenderAddress(void)const " (?getSenderAddress@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setSenderCity(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setSenderCity@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getSenderCity(void)const " (?getSenderCity@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setSenderState(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setSenderState@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getSenderState(void)const " (?getSenderState@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setSenderZip(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setSenderZip@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getSenderZip(void)const " (?getSenderZip@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setRecipientName(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setRecipientName@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getRecipientName(void)const " (?getRecipientName@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setRecipientAddress(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setRecipientAddress@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getRecipientAddress(void)const " (?getRecipientAddress@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setRecipientCity(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setRecipientCity@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getRecipientCity(void)const " (?getRecipientCity@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setRecipientState(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setRecipientState@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getRecipientState(void)const " (?getRecipientState@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setRecipientZip(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &)" (?setRecipientZip@Package@@QAEXABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > __thiscall Package::getRecipientZip(void)const " (?getRecipientZip@Package@@QBE?AV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@XZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setWeight(double)" (?setWeight@Package@@QAEXN@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: double __thiscall Package::getWeight(void)const " (?getWeight@Package@@QBENXZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: void __thiscall Package::setShip(double)" (?setShip@Package@@QAEXN@Z) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: double __thiscall Package::getShip(void)const " (?getShip@Package@@QBENXZ) already defined in Package.obj
1>PackageTest.obj : error LNK2005: "public: double __thiscall Package::calculateCost(void)const " (?calculateCost@Package@@QBENXZ) already defined in Package.obj
1>PackageTest.obj : error LNK2019: unresolved external symbol "public: double __thiscall OverNightPackage::calculateCost(void)" (?calculateCost@OverNightPackage@@QAENXZ) referenced in function _main
1>PackageTest.obj : error LNK2019: unresolved external symbol "public: double __thiscall TwoDayPackage::calculateCost(void)" (?calculateCost@TwoDayPackage@@QAENXZ) referenced in function _main
1>PackageTest.obj : error LNK2019: unresolved external symbol "public: __thiscall TwoDayPackage::TwoDayPackage(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,double,double,double)" (??0TwoDayPackage@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@000000000NNN@Z) referenced in function _main
1>PackageTest.obj : error LNK2019: unresolved external symbol "public: __thiscall OverNightPackage::OverNightPackage(class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,double,double,double)" (??0OverNightPackage@@QAE@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@000000000NNN@Z) referenced in function _main
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Re: Inheritance Hierarchy

  #7  
33 Days Ago
Return a string perhaps?
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Re: Inheritance Hierarchy

  #8  
33 Days Ago
Read my previous post. Also: the classes don't have a default contructor, so you might want to change that
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Re: Inheritance Hierarchy

  #9  
33 Days Ago
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Originally Posted by niek_e View Post
This line:
<< "\nThe cost is $ " << box.calculateCost() is probably causing the problem. The function calculateCost() isn't returning anything (void). To solve the problem, you should delete the function declaration from TwoDayPackage and OverNightPackage. The class 'Package' already has a calculateCost-function, so why make 2 more?

[edit]Too slow .... what ^^ said.


When I deleted the function from declaration from TwoDayPackage and OverNightPackage, I get 29 errors
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Re: Inheritance Hierarchy

  #10  
33 Days Ago
What errors? Post your new code, I'm not in the mood to stare into my crystal ball to locate your problem
do NOT pm me for help, it makes me angry. You wouldn't like me when I'm angry...
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