Thread: homework help

Hi folks...hope you guys can help me and fast....i'm working on a project for school. i'm using the Dev C++ complier...i'm at my wits ends on this project. i've attached it below along with the errors i keep getting and can't figure out. PLEASE SOMEONE HELP...MY PROJECT IS DUE BY 11:59 PM EASTER STANDARD TIME. i really apprectiate it. thnx.

Code:

#include <iostream.h> 
#include <fstream> 
#include <stdlib.h> 
#include <string> 
#include <ctime> 
#include <iomanip> 

const int max = 50; 

//class for the input file 
class product 
{ 
 public: 
         product();//constructor 
         //copy constructor 
         product(const product&); 
         //string get();//for print function to access the members 
         //float get(); 
         //char get(); 
         void get(float&, char&, string&); 
         void set(int, string, float, char); 
         friend bool operator==(product, product); //overloading operator == 
         int product::get(int, product); 

 private: 
         int product_num; 
         string name; 
         float price; 
         char tax; 
 }; 
class sList 
{ 
 public: 
         void MakeEmpty (); 
         bool IsFull (); 
         bool IsEmpty (); 
         int LengthIs (); 
         bool IsThere (int, int& location) const; 
         void Insert (product); 
         void Delete (); 
         void ResetList (); 
         product get (int&); 
private: 
         int length; 
         product info[max]; 
         int currentPos; 
         friend void BinSearch(/*in*/ int, /*out*/ bool&, /*out*/ int&); 
}; 

int main() 
{ 
 //declarations 

 ifstream in; 
 ofstream out; 
 int times, pnum;//times is the quantity and pnum holds product id from input file 
 int item; //holds product id from keyboard 
 float pr;// holds price from input file 
 string n;//holds name from input file 
 bool found; 
 int place;//holds index for where the product is 
 char ta; //holds tax from input file 
 sList list; //declares variable of class slist 
 product inventory;//declares variable of class product 
 time_t rawtime; 
 float subtotal = 0;//holds subtotal 
 float totTax = 0;//holds total tax value 

 //initializing list 
  list.MakeEmpty(); 

 //opening file 
 in.open("Invent.in"); 
 while(!in) 
 { 
  cout << "Inventory file did not open. Please try again."; 
  return 1; 
 } 
  //opening output file 
  out.open("Receipts.out"); 


//priming reading 
in >> pnum >> n >> pr >> ta; 
while(!in.eof()) 

{ 
 inventory.set (pnum, n, pr, ta); 
 list.Insert(inventory); 
 in >> pnum >> n >> pr >> ta; 

} 
int cus_no = 0; 
do 
{ 
 cus_no++; 
cout << "Please start processing the order in the form of productNumber"; 
cout << "and the number of times for each product and enter 0 at the end of the"; 
cout << "order." << endl; 

cin >> item >> times; 
//check for improper times value 
while((times > 100) || (times <= 0)) 
 cout << "Error, times is out of range.  Please enter a number between 1 and 100"; 

do{ 
if(item !=0) 

{ 
   product temp; //holds temp value for product class 
  BinSearch(item, found, place); 
  if(found == true) 
  { 
   temp = list.get(place);//places the whole product into temp 
   //float tprice = temp.getprice(); 
   //char t_tax = temp.get(tax); 
   //string tname = temp.get(name); 
   float price; 
   char tax; 
   string name; 
   temp.get(price, tax, name); 
   time(&rawtime);//gets time in seconds 
   out << ctime(&rawtime)<<endl; //converts seconds into a string 
   if(tax == 'T') 
   { 
    float tvalue = 0;//holds value for tax 
    tvalue = price * .075; 
    float actualPrice = 0; // price after tax is added 
    actualPrice = price + tvalue; 
    totTax +=tvalue; 
    
   out<< "Customer "<<cus_no<<endl; 
   out << name << "            " <<times<<" @ "<< price; 
   out << (price * times) <<tax<<"X" <<endl; 

   } 
   else 
   { 
    out<< "Customer "<<cus_no<<endl; 
     out << name << "           " <<times<<" @ "<< price; 
    out << (price * times) <<endl; 
    } 
   } 
   else 
    out <<"********"<<setw(5)<<setfill('o')<<item<<" not in inventory****"<<setfill(' '); 

  char repeat; 
  cout << "Is there another item to process? Enter the product id or 0 for the end of the order."; 
  cin >>item; 
   }while(item); 
 } 
 else 
 { 
  out << "Subtotal "<<"      " <<subtotal<<endl; 
  out <<"Tax"<<"          "<<totTax<<endl; 
  float total = 0; 
  total = subtotal + totTax; 
  out << "Total" <<"        "<<total<<endl; 
 } 
 } 
 char response; 
 cout <<"Is there another cusotmer to be processed? Enter Y for yes and N for no"<<endl; 
 cin >>response; 
 if(response == 'N') 
 cout << "Have a nice day!"<<endl; 
 }while(response == 'Y'); 
 } 
 return 0; 
 } 

//******************************************************** 
void sList::Insert(product inventory) 
{ 
int index, product_num; 
  if(length < max && !IsThere(product_num, index)) 
  { 

    info[length] = inventory ; 
    length++ ; 
  } 
   else 
    cout<<endl<<"List is full or contains the product number-operation aborted"; 
    } 

//*************************************************************** 
sList::sList ( ) 
{ 
        length = 0; 
        currentPos = 0; 
} 
//*************************************************************** 
void sList::MakeEmpty ( ) 
{ 
        length  =  0 ; 
        currentPos = 0; 
} 
//****************************************************************** 
int sList::LengthIs ( ) 
{ 
 return  length ; 
} 
//***************************************************** 
bool  sList::IsFull ( ) 
{ 
        return ( length == max ) ; 
} 
//****************************************************************** 
bool sList::IsThere (int pro_id, int& location ) const 
{ 
  bool found; 
  //binary search is called 

  BinSearch(pro_id, found, location); 

 return found; 
} 



//******************************************************************** 
/*void sList::Delete (  ) 
{ 
        int location; 
         if(IsThere(product_num, location)) 
        { 
        // move last element into position where item was located 

            info [location] = info [length - 1 ] ; 
            length-- ; 
        } 


} */ 
//************************************************************************** 
bool sList::IsEmpty() 
{ 
   return (length == 0); 
} 
//**************************************************************************** 
void sList::ResetList ( ) 
{ 
        currentPos  =  0; 
} 
//**************************************************************************** 
product sList::get (int& location) 
{ 
       product temp; 
       temp=info[location]; 
       return temp; 
} 
//**************************************************************** 
product::product(const product& copyInven) 
{  product inventory; 
product_num = inventory.product_num; 
   name = inventory.name; 
   price = inventory.price; 
   tax = inventory.tax; 
} 
//********************************************************************** 
void product::set (int pid, string nam,  float cost, char t) 
{ 
 product_num = pid; 
 name = nam; 
 price = cost; 
 tax = t; 
} 

//********************************************************************** 
bool operator==(product anotherItem, product inventory) 
{ 
 if(inventory.product_num == anotherItem.product_num) 
  return true; 
  else 
     return false; 
} 
//*************************************************************** 
/*bool operator<(product anotherItem) 
{ 
 if(inventory.product_num < anotherItem.product_num) 
  return true; 
  else      
   return false; 
} */ 
//**************************************************************** 
/*bool operator>(product anotherItem, product inventory) 
{ 
 if (inventory.product_num > anotherItem.product_num) 
 return true; 
 else 
  return false; 
} */ 
//***************************************************************** 
void sList::BinSearch(/*in*/ int pro_id, /*out*/ bool& found, /*out*/ int& position) 
{ 
int first = 0; //lower bound 
int last = length -1; //upper bound 
int mid; //middle index 
sList list; 

found = true; 
product temp; //declares an object of class product for get functions 
int t_pid, product_num;//holds temp value for product id for comparing purposes 
while(last >= first && !found) 
{ 
 mid = (first + last) / 2; 
 temp = list.get(position); 
 t_pid =temp.get(product_num, temp); 
 if (t_pid < pro_id) 
   last = mid - 1; 
 else if(t_pid > pro_id) 
       first = mid + 1; 
 else 
  //Assert: t_pid == pro_id 
    found = false; 
} 
if (!found) 
   position = mid; 
} 
//*************************************************************************** 
/*string product::get()*/ 
/*{ 
 string n; 
   n = temp.name; 
   return n; 
} 
//************************************************************************** 
float product::get() 
{ 
 float p; 
 p = temp.price; 
 return p; 
} 
//************************************************************************** 
char product::get() 
{ 
 char t; 
 t=temp.tax; 
 return t; 
}*/ 
//******************************* 
void product::get(float& price, char& tax, string& name) 
{  product temp; 
 price = temp.price; 
 tax = temp.tax; 
 name = temp.name; 
} 
//************************************************************* 
int product::get(int product_num, product temp) 
{ 
 int t_pid; 
 t_pid =temp.product_num; 
 return t_pid; 
}

Here are the errors i'm getting while compiling in Dev C++:

154 parse error before `else'
162 parse error before `}'
164 syntax error before `<'
165 syntax error before `>'
189 definition of implicitly-declared `sList::sList()'
189 redefinition of `sList::sList()'
50 `sList::sList()' previously defined here
296 no `void sList::BinSearch(int, bool &, int &)' member function declared in class `sList'

SOMEBODY PLEASE HELP!!!

None of your "do ... while();" constructs match up. Check the braces.

gg

first and formost. I would like to thanks the two ppl who did try to help. As for all the others, i hate to say it but you guys really proved that some ppl can be simply cruel.
At least i tried to do my work rather then asking somebody else to do it for me. I guess i was mistaking in assuming that this forum was up for ppl to get help. For future reference, i think you should think before posting a reply that won't really help the person. You can be sure that this forum isn't one that i will be recommending to friends to check out.
Again, i want to thanks the two ppl who tried to help. Thanks. the rest of you, gosh i sure hope somebody knocks some manners into you!

1st, let me put your curiosity to rest: I DIDN'T CLICK ON THE LINK!! i prefer to do my own work thank you very much!

now, you said if i phrased myself differently...excuse me? phrashed myself differently how? all i did was ask for help.
and you said that there are ppl like me who post to get their work done for them and get it done quickly.... well, did you ever consider that maybe i didn't put off on the program? that i had been working on it and only when i REALLY needed the help that i posted? no ofcourse not. that would never occure to you would it?
well let me tell you, the ONLY reason i would ask for help is when REALLY need it.
maybe you should give ppl a chance. how about that? it's a new concept but give it a try....
if i haven't made myself clear, i will do it now, for those of you who think that i was trying to get you to do my work for me, i wasn't. i had spent a considerate amount of time working out the kinks in the program and when i couldn't do the last ones, and had just about had it, that was when i posted. But other then the two who did help, you guys were a complete waste of time.
and axon, about this board, i have already found one better. maybe you should fine tune your searching skills, i'm sure eventually, it will catch up with your terrible sense of humor and manners. good luck

You are probably gone, but nonetheless I wanted to post this for others to future reference. When you are writing in C++, use the updated headers. The C headers may work, but they are outdated.

Code:

#include <iostream.h> 
#include <fstream> 
#include <stdlib.h> 
#include <string> 
#include <ctime> 
#include <iomanip>

into

Code:

#include <iostream> 
#include <fstream> 
#include <cstdlib> 
#include <cstring> 
#include <ctime> 
#include <iomanip>

-NIM

Originally posted by NIM
You are probably gone, but nonetheless I wanted to post this for others to future reference. When you are writing in C++, use the updated headers. The C headers may work, but they are outdated.

Code:

#include <string>

into

Code:

#include <cstring>

Note that the one above is incorrect. Those are two totally different libraries that are both new and standard. <string> holds the standard string class, while <cstring> is the standard C library that replaces the deprecated <string.h> and has C-style string manipulation functions like strcpy, strcat, etc.

I must concur with the general consensus on this one. This message board is awesome when it comes to providing help for other people. The people around here have helped me out many times in the past and I appreciate it greatly. Some have even gone as far as to recommend books that would further enhance my skills and knowledge. I'd strongly suggest reconsidering your opinion..