Help Compiling

[z8q4izwU]

Hello i need help compiling this program and headder file. Ive been trying to fix it for the past few hours and thinking i just need another fresh set of eyes to look at it. Heres the errors i get.....

3 In file included from New folder/hw4.cpp
In member function `void sales::purchase(int)':
46 sales.h invalid use of member (did you forget the `&' ?)
sales.h In member function `void sales::cashout()':
67 sales.h `number' undeclared (first use this function)
11 hw4.cpp `cds' undeclared (first use this function)
(same line with 'position', 'sell', 'profit'
20 hw4.cpp `number' undeclared (first use this function)


H file

#include <iostream>
#include <cstdlib>

using namespace std;

class sales
{
      private: 
               static const double cd_cost = 3.50;
	           static const double cd_price = 9.50;
	           double cash;
	           int cds;
	           double profit;
	           
      public:
               sales ();
	           void print ();
	           void purchase (int number);
	           void sell (int number);
	           void cashout ();
	           
            };
            
      //constructor      
      sales::sales()
      {
          cash = 100;
          cds = 0;
          profit = 0;
                    
                    }
                    
      //print
     void sales::print()
      {
     cout << "\n" << cash << " Cash";
     cout << "\n" << cds << " CDs";
     cout << "\n" << profit << " Profit" << endl;
                    
                    }
                    
                    
      //purchase
      void sales::purchase(int number)
      {
          purchase = cd_cost * cds;
          cash = cash - (cd_cost * number);
           
           
           }
        //sell   
      void sales::sell (int number)
      {
           
           profit = (cd_cost * cds) - (cd_price * cds); 
           
           }
      //cashout     
      void sales::cashout ()
      {
         if(cash <= cd_cost ){

            cout << "\nThere is not enough cash to purchase that many CDs!\n";

        }else{

            cash = cash - (cd_cost * number);

        }
           
           
           }
           
                    

Main

#include <cstdlib>
#include <iostream>
#include "sales.h"


using namespace std;

int main(int argc, char *argv[])
{
    char input[1];
    sales cds, purchase, sell, profit; 
    while(1){


        cout << "\Enter b (buy), s (sell), c (cash out), p (print), or q (quit) :";
        cin >> input;
        if(input[0] == 'b'){
            cout << "Enter the number of CDs to buy: ";
            cin >> cds;
            purchase (number);            

        }else if(input[0] == 's'){

            cout << "Enter the number of CDs to sell:  ";
            cin >> cds;
            sell (number);
            cout << "\n" << s.cds << "CDs sold for" << profit;  

        }else if(input[0] == 'c'){

            cout << cds << "CDs purchased for " << profit ;
            

        }else if(input[0] == 'p'){

            cout << "Current Sales Information: ";
            

        }else if(input[0] == 'q'){

            cout << "\nWhat a sell-out!\n";
            break;

        }else{

            cout << "\nThere is not enough cash to purchase that many CDs!\n";
            }
            }
            

    
    system("PAUSE");
    return EXIT_SUCCESS;
}

[vlad from moscow]

I wonder why do not you read error messages yourself? Do you want that it will be us how will read error messages instead of you? What does this code means?

      void sales::purchase(int number)
      {
          purchase = cd_cost * cds;

[MiiNiPaa]

number' undeclared 

Exactly what it says. You didn't bother to declare it anywhere.

invalid use of member (did you forget the `&' ?)

same here actually. Compiler got confused because there was purchase function.

[z8q4izwU]

So i fixed my code working on this for hours and making stupid mistakes but i dont understand this error code. Can anyone explain it?

28 hw4.cpp no match for 'operator<<' in 'std::operator<< [with _Traits = std::char_traits<char>](((std::basic_ostream<char, std::char_traits<char> >&)(+(+std::operator<< [with _Traits = std::char_traits<char>](((std::basic_ostream<char, std::char_traits<char> >&)(&std::cout)), ((const char*)"\n")))->std::basic_ostream<_CharT, _Traits>::operator<< [with _CharT = char, _Traits = std::char_traits<char>](cds))), ((const char*)"CDs sold for")) << profit'

[MiiNiPaa]

no match for 'operator<<'

exactly what it says: you didn't provided overloaded stream output operator << for your class.