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Compiling errors.

blk (9)
Hi, I'm working on a little project and I have some compiling errors that I can't fix.
This is my code:
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#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;

double SaleRecord(unsigned&, double&, unsigned&, double&, char&);
float calculateItemCost(char discountType, double itemPrice, double totalPrice, int quantity);
void calcTotalPrice(double totalPrice, unsigned Num, bool aborted);



int main()
{
unsigned itemID, quantity, records, totalQuantity;
char discountType;
double itemPrice, discount, transactionNumber, allPrices;

int totalRec;

SaleRecord(itemID&, itemPrice, discountType&, quantity, &transactionNumber); 
calculateItemCost(itemPrice, totalPrice, discountType, quantity); 
displayTotalPrice(totalPrice);


system("pause");
return 0;
}

void finalPrice(double finalPrice)
{
cout << "The final price with all of the items is " <<totalPrice;
return;
}


double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity){
float discount;
switch (discountType){

case 'N': discount=1;
break;

case 'n': discount=1;
break;

case 'B': discount=0.9;
break;

case 'b': discount=0.9;
break;

case 'D': discount=0.8;
break;

case 'd': discount = 0.8;
break;

case 'T': discount=0.7;
break;

case 't': discount=0.7;
break;

default: discount=1;
}
totalPrice=itemPrice*discount*quantity;

return totalPrice;
}

double SaleRecord(unsigned & quantity, float & itemPrice, unsigned & itemID, double & transactionNumber, char & discountType)
{
int anotherTransaction = 0;
cout << "Enter the 6 digit item ID starting with a number greater than 1:";
cin >> itemID;
if (itemID <=99999 || itemID >999999)
{
cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
system("pause");
exit(0);
}

cout << "Enter the price of the item:";
cin >> itemPrice;

if (itemPrice<0)
{
cout << "You didn't enter a valid price. Try again.";
system("pause");
exit(0);
}

cout << "Enter the discount type. The valid discount types are:\n\
\aN: No discount\n\
\aB: Basic discount (10%)\n\
\aD: Double discount (20%)\n\
\aT: Triple discount (30%)";
cin >> discountType;

if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
{
cout << "You didn't enter a valid discount type. Try again.";
system("pause");
exit(0);
}

cout << "Enter the quanity of item sold.";
cin >> quantity;
if (quantity<0)
{
cout << "You didn't enter a valid quantity sold. Try again.";
system("pause");
exit(0);
}
string multipleSales;
cout << "Would you like to perform another transaction? 'yes' or 'no'";
cin >> multipleSales;
transactionNumber++;


while( multipleSales == yes)
{
cout << "Enter the 6 digit item ID starting with a number greater than 1:";
cin >> itemID;

if (itemID <=99999 || itemID >999999)
{
cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
system("pause");
exit(0);
}

cout << "Enter the price of the item:";
cin >> itemPrice;

if (itemPrice<0.1f || itemPrice > 9999999)
{
cout << "You didn't enter a valid price. Try again.";
system("pause");
exit(0);
}

cout << "Enter the discount type. The valid discount types are:\n\
\aN: No discount\n\
\aB: Basic discount (10%)\n\
\aD: Double discount (20%)\n\
\aT: Triple discount (30%)";
cin >> discountType;

if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
{
cout << "You didn't enter a valid discount type. Try again.";
system("pause");
exit(0);
}

cout << "Enter the quanity of item sold.";
cin >> quantity;

if (quantity<0)
{
cout << "Invalid Entry. Please enter the correct Quantity";
system("pause");
exit(0);
}

cout << "Would you like to perform another transaction? 'yes' or 'no'";
cin >> anotherTransaction;
transactionNumber++;
}

return (itemID, quantity, discountType, itemPrice, transactionNumber);

}


Errors are:
13 expected `,' or `...' before '&' token
In function `int main()':
25 expected primary-expression before ',' token
25 expected primary-expression before ',' token
26 `totalPrice' undeclared (first use this function) < it's declared?
(Each undeclared identifier is reported only once for each function it appears in.)
27 `displayTotalPrice' undeclared (first use this function) < also declared
In function `void finalPrice(double)':

36 In function `double SaleRecord(unsigned int&, float&, unsigned int&, double&, char&)': `totalPrice' undeclared (first use this function)
126 `yes' undeclared (first use this function)

Thanks!
closed account (o3hC5Di1)
Hi there,

Here's some things that should at least reduce the amount of errors:

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3
 
//line 13
unsigned int itemID, quantity, records, totalQuantity; 
//"unsigned" itsself is not a valid variable type i think 


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3
 
//line 16
double itemPrice, discount, transactionNumber, allPrices, totalPrice;
//totalPrice needs to be declared before it can be used.


Copy your main function underneath all your other functions as a quick fix too, or declare your functions before the main() function as for instance:

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double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity);
//note the semicolon after the declaration


Hope that helps.

All the best,
NwN
Last edited on
blk (9)
That helped a lot and I found where I went wrong in a few other places, thank you!
I'm down to one error now, I think this is a parsing error but don't know where I've gone wrong.
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#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;

double saleRecord(unsigned int&, double&, unsigned int&, double&, char&, int multipleSales);
double calculateItemCost(char discountType, double itemPrice, double totalPrice, int quantity);
void calcTotalPrice(double totalPrice, unsigned Num, bool aborted);
double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity);
double displayTotalPrice(double totalPrice);




int main()
{
    unsigned int itemID, quantity, records, totalQuantity;
    char discountType;
    double itemPrice, discount, transactionNumber, allPrices, totalPrice;

    int totalRec;

    saleRecord(itemID&, itemPrice, discountType, quantity, &transactionNumber); 
    calculateItemCost(discountType, itemPrice, totalPrice, quantity); 
    displayTotalPrice(totalPrice);


    system("pause");
    return 0;
}

    void finalPrice(double finalPrice)
{
    cout << "The final price with all of the items is " <<finalPrice;
    return;
}

double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity){
float discount;
switch (discountType){

              case 'N': discount=1;
              break;

              case 'n': discount=1;
              break;

              case 'B': discount=0.9;
              break;

              case 'b': discount=0.9;
              break;

              case 'D': discount=0.8;
              break;

              case 'd': discount = 0.8;
              break;

              case 'T': discount=0.7;
              break;

              case 't': discount=0.7;
              break;
       
              default: discount=1;
}
       totalPrice=itemPrice*discount*quantity;

       return totalPrice;
}

double saleRecord(unsigned & quantity, double & itemPrice, unsigned & itemID, double & transactionNumber, char & discountType)
{
       int multipleSales = 0;
       cout << "Enter the 6 digit item ID starting with a number greater than 1:";
       cin >> itemID;
       if (itemID <=99999 || itemID >999999)
          {

                  cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
                  system("pause");
                  exit(0);
                  }

        cout << "Enter the price of the item:";
        cin >> itemPrice;

        if (itemPrice<0)
           {
           cout << "You didn't enter a valid price. Try again.";
           system("pause");
           exit(0);
           }

        cout << "Enter the discount type. The valid discount types are:\n\
        \aN: No discount\n\
        \aB: Basic discount (10%)\n\
        \aD: Double discount (20%)\n\
        \aT: Triple discount (30%)";
        cin >> discountType;

        if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
        {
             cout << "You didn't enter a valid discount type. Try again.";
             system("pause");
             exit(0);
        }

        cout << "Enter the quanity of item sold.";
        cin >> quantity;
        if (quantity<0)
        {
             cout << "You didn't enter a valid quantity sold. Try again.";
             system("pause");
             exit(0);
        }

        cout << "Would you like to perform another transaction? '1' for yes or '0' for no";
        cin >> multipleSales;
        transactionNumber++;


        while(multipleSales==1)
        {
        cout << "Enter the 6 digit item ID starting with a number greater than 1:";
        cin >> itemID;

        if (itemID <=99999 || itemID >999999)
        {
              cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the price of the item:";
        cin >> itemPrice;

        if (itemPrice<0.1 || itemPrice > 9999999)
        {
              cout << "You didn't enter a valid price. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the discount type. The valid discount types are:\n\
        \aN: No discount\n\
        \aB: Basic discount (10%)\n\
        \aD: Double discount (20%)\n\
        \aT: Triple discount (30%)";
        cin >> discountType;

        if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
        {
              cout << "You didn't enter a valid discount type. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the quanity of item sold.";
        cin >> quantity;

        if (quantity<0)
        {
              cout << "Invalid Entry. Please enter the correct Quantity";
              system("pause");
              exit(0);
        }

        cout << "Would you like to perform another transaction? 'yes' or 'no'";
        cin >> multipleSales;
        transactionNumber++;
        }

return (itemID, quantity, discountType, itemPrice, transactionNumber);

}

Error:
In function `int main()':
28 expected primary-expression before ',' token
Last edited on
guestgulkan (2942)
Note that I have removed some lines just to make my answer shorter.
These are compilation errors- they will not let the code compile.
(There may be other operational/runtime errors - but we have to get the thing to compile first)

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#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;

double SaleRecord(unsigned&, double&, unsigned&, double&, char&);
float calculateItemCost(char discountType, double itemPrice, double totalPrice, int quantity);
void calcTotalPrice(double totalPrice, unsigned Num, bool aborted);



int main()
{
    unsigned itemID, quantity, records, totalQuantity;
    char discountType;
    double itemPrice, discount, transactionNumber, allPrices;

    int totalRec;

    //***ERROR - Incorrect way to call the saleRecord function
    SaleRecord(itemID&, itemPrice, discountType&, quantity, &transactionNumber);
    //***ERROR - what is this totalPrice variable??????????????? 
    calculateItemCost(itemPrice, totalPrice, discountType, quantity);
    
    //** ERROR - TWO errors on nect line:
    // 1. What is this displayTotalPrice function - I see no function prototype for it??
    //2. Where has this totalPrice variable suddenly appeared from??  again???????????
    displayTotalPrice(totalPrice); 


    system("pause");
    return 0;
}

void finalPrice(double finalPrice)
{
    cout << "The final price with all of the items is " <<totalPrice; //***ERROR - What is totalPrice????
    return;
}


double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity)
{
    //removed body to save space
}

double SaleRecord(unsigned & quantity, float & itemPrice, unsigned & itemID, double & transactionNumber, char & discountType)
{
    //Removed a lot of line to save  spce.

    while( multipleSales == yes) //******* ERROR - What is yes???? 
    {
        //removed some stuff to save space 
  
    }

    return (itemID, quantity, discountType, itemPrice, transactionNumber); //*** ERROR -  what are you trying to return her??
}
closed account (o3hC5Di1)
Hi,

regarding that last error:

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//line 23
saleRecord(itemID&, itemPrice, discountType, quantity, &transactionNumber);


The Ampersand (&) should be after the variable identifier, i.e. transactionNumber&

Hope that works.

All the best,
NwN
blk (9)
Thanks a lot guestgulkan, I'm now down to just one error - could you help me with this last one?
It's just about 5 AM here in Australia and I've been killing myself all night over this haha. I'm so close!
closed account (o3hC5Di1)
I just did :)

-N
blk (9)
Thanks NwN, I tried that but the error still remains and another appears:
28 expected primary-expression before ')' token
guestgulkan (2942)
The thing is - now that you have made corrections, the line numbers in your new code probably don't match your original post.
So a code post update would be nice.
blk (9)
Here's the current code:
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/*  
=
=    
*/

#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;

double saleRecord(unsigned int&, double&, unsigned int&, double&, char&, int multipleSales);
double calculateItemCost(char discountType, double itemPrice, double finalPrice, int quantity);
void calcTotalPrice(double totalPrice, unsigned Num, bool aborted);
double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity);
double displayTotalPrice(double totalPrice);




int main()
{
    unsigned int itemID, quantity, records, totalQuantity;
    char discountType;
    double itemPrice, discount, transactionNumber, allPrices, totalPrice;

    int totalRec;

    saleRecord(itemID&, itemPrice, discountType, quantity, transactionNumber&); 
    calculateItemCost(discountType, itemPrice, totalPrice, quantity); 
    displayTotalPrice(totalPrice);


    system("pause");
    return 0;
}

    void finalPrice(double finalPrice)
{
    cout << "The final price with all of the items is " <<finalPrice;
    return;
}

double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity){
float discount;
switch (discountType){

              case 'N': discount=1;
              break;

              case 'n': discount=1;
              break;

              case 'B': discount=0.9;
              break;

              case 'b': discount=0.9;
              break;

              case 'D': discount=0.8;
              break;

              case 'd': discount = 0.8;
              break;

              case 'T': discount=0.7;
              break;

              case 't': discount=0.7;
              break;
       
              default: discount=1;
}
       totalPrice=itemPrice*discount*quantity;

       return totalPrice;
}

double saleRecord(unsigned & quantity, double & itemPrice, unsigned & itemID, double & transactionNumber, char & discountType)
{
       int multipleSales = 0;
       cout << "Enter the 6 digit item ID starting with a number greater than 1:";
       cin >> itemID;
       if (itemID <=99999 || itemID >999999)
          {

                  cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
                  system("pause");
                  exit(0);
                  }

        cout << "Enter the price of the item:";
        cin >> itemPrice;

        if (itemPrice<0)
           {
           cout << "You didn't enter a valid price. Try again.";
           system("pause");
           exit(0);
           }

        cout << "Enter the discount type. The valid discount types are:\n\
        \aN: No discount\n\
        \aB: Basic discount (10%)\n\
        \aD: Double discount (20%)\n\
        \aT: Triple discount (30%)";
        cin >> discountType;

        if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
        {
             cout << "You didn't enter a valid discount type. Try again.";
             system("pause");
             exit(0);
        }

        cout << "Enter the quanity of item sold.";
        cin >> quantity;
        if (quantity<0)
        {
             cout << "You didn't enter a valid quantity sold. Try again.";
             system("pause");
             exit(0);
        }

        cout << "Would you like to perform another transaction? '1' for yes or '0' for no";
        cin >> multipleSales;
        transactionNumber++;


        while(multipleSales==1)
        {
        cout << "Enter the 6 digit item ID starting with a number greater than 1:";
        cin >> itemID;

        if (itemID <=99999 || itemID >999999)
        {
              cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the price of the item:";
        cin >> itemPrice;

        if (itemPrice<0.1 || itemPrice > 9999999)
        {
              cout << "You didn't enter a valid price. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the discount type. The valid discount types are:\n\
        \aN: No discount\n\
        \aB: Basic discount (10%)\n\
        \aD: Double discount (20%)\n\
        \aT: Triple discount (30%)";
        cin >> discountType;

        if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
        {
              cout << "You didn't enter a valid discount type. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the quanity of item sold.";
        cin >> quantity;

        if (quantity<0)
        {
              cout << "Invalid Entry. Please enter the correct Quantity";
              system("pause");
              exit(0);
        }

        cout << "Would you like to perform another transaction? 'yes' or 'no'";
        cin >> multipleSales;
        transactionNumber++;
        }

return (itemID, quantity, discountType, itemPrice, transactionNumber);

}

Last edited on
closed account (o3hC5Di1)
Hi,

had to fix some stuff in your function declaration of saleRecord()

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#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;

double saleRecord(unsigned int &itemID, double itemPrice, char discountType, unsigned int quantity, double &transactionNumber);
double calculateItemCost(char discountType, double itemPrice, double finalPrice, int quantity);
void calcTotalPrice(double totalPrice, unsigned Num, bool aborted);
double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity);
double displayTotalPrice(double totalPrice);




int main()
{
    unsigned int itemID, quantity, records, totalQuantity;
    char discountType;
    double itemPrice, discount, transactionNumber, allPrices, totalPrice;

    int totalRec;
    saleRecord(itemID, itemPrice, discountType, quantity, transactionNumber); 
    calculateItemCost(discountType, itemPrice, totalPrice, quantity); 
    displayTotalPrice(totalPrice);


    //system("pause");
    return 0;
}

    void finalPrice(double finalPrice)
{
    cout << "The final price with all of the items is " <<finalPrice;
    return;
}

double calcItemPrice(double itemPrice, double totalPrice, char discountType, int quantity){
float discount;
switch (discountType){

              case 'N': discount=1;
              break;

              case 'n': discount=1;
              break;

              case 'B': discount=0.9;
              break;

              case 'b': discount=0.9;
              break;

              case 'D': discount=0.8;
              break;

              case 'd': discount = 0.8;
              break;

              case 'T': discount=0.7;
              break;

              case 't': discount=0.7;
              break;
       
              default: discount=1;
}
       totalPrice=itemPrice*discount*quantity;

       return totalPrice;
}
double saleRecord(unsigned int &itemID, double itemPrice, char discountType, unsigned int quantity, double &transactionNumber)
{
       int multipleSales = 0;
       cout << "Enter the 6 digit item ID starting with a number greater than 1:";
       cin >> itemID;
       if (itemID <=99999 || itemID >999999)
          {

                  cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
                  system("pause");
                  exit(0);
                  }

        cout << "Enter the price of the item:";
        cin >> itemPrice;

        if (itemPrice<0)
           {
           cout << "You didn't enter a valid price. Try again.";
           system("pause");
           exit(0);
           }

        cout << "Enter the discount type. The valid discount types are:\n\
        \aN: No discount\n\
        \aB: Basic discount (10%)\n\
        \aD: Double discount (20%)\n\
        \aT: Triple discount (30%)";
        cin >> discountType;

        if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
        {
             cout << "You didn't enter a valid discount type. Try again.";
             system("pause");
             exit(0);
        }

        cout << "Enter the quanity of item sold.";
        cin >> quantity;
        if (quantity<0)
        {
             cout << "You didn't enter a valid quantity sold. Try again.";
             system("pause");
             exit(0);
        }

        cout << "Would you like to perform another transaction? '1' for yes or '0' for no";
        cin >> multipleSales;
        transactionNumber++;


        while(multipleSales==1)
        {
        cout << "Enter the 6 digit item ID starting with a number greater than 1:";
        cin >> itemID;

        if (itemID <=99999 || itemID >999999)
        {
              cout << "You didn't enter a 6 digit item ID startin with a number greater than 1. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the price of the item:";
        cin >> itemPrice;

        if (itemPrice<0.1 || itemPrice > 9999999)
        {
              cout << "You didn't enter a valid price. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the discount type. The valid discount types are:\n\
        \aN: No discount\n\
        \aB: Basic discount (10%)\n\
        \aD: Double discount (20%)\n\
        \aT: Triple discount (30%)";
        cin >> discountType;

        if (discountType!='N' && discountType!='B' && discountType!='D' && discountType!='T')
        {
              cout << "You didn't enter a valid discount type. Try again.";
              system("pause");
              exit(0);
        }

        cout << "Enter the quanity of item sold.";
        cin >> quantity;

        if (quantity<0)
        {
              cout << "Invalid Entry. Please enter the correct Quantity";
              system("pause");
              exit(0);
        }

        cout << "Would you like to perform another transaction? 'yes' or 'no'";
        cin >> multipleSales;
        transactionNumber++;
        }

return (itemID, quantity, discountType, itemPrice, transactionNumber);

}



NwN
Last edited on
blk (9)
That fixed the errors I had but created these:
[Linker error] undefined reference to `calculateItemCost(char, double, double, int)'
[Linker error] undefined reference to `displayTotalPrice(double)'
ld returned 1 exit status
closed account (o3hC5Di1)
You haven't actually defined these functions, only declared and posibly called them, you need blocks like

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double calculateItemCost(double price, double quantitiy)
{
    return price*quantity;
}


That's just an example, it won't work.

All the best,
NwN
blk (9)
It compiles now but the "final price" doesn't display as I wanted it to.
I'm so much trouble haha sorry.
closed account (o3hC5Di1)
Hi there,

Maybe it's because of this, not sure though - it depends on your intent:

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int main()
{
    unsigned int itemID, quantity, records, totalQuantity;
    char discountType;
    double itemPrice, discount, transactionNumber, allPrices, totalPrice;

    int totalRec;
    saleRecord(itemID, itemPrice, discountType, quantity, transactionNumber); 
    calculateItemCost(discountType, itemPrice, totalPrice, quantity); 
    displayTotalPrice(totalPrice); //here it's called displayTotalPrice(totalPrice)


    //system("pause");
    return 0;
}

    void finalPrice(double finalPrice) //here it's called finalPrice(finalPrice)
{
    cout << "The final price with all of the items is " <<finalPrice;
    return;
}
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