i changed some code in the functions and it compiles well, but when i try to run it i am getting link errors. i don't know what they mean. if someone could run the code and help me debug i would appreciate it. i'm starting to get frustrated. i'm probably not using any of the functions right.
Code:
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
using namespace std;
long isInInventory(string,string[],long);
// Parameters:
// codeToFind: product code being searched for
// code: product codes in inventory
// count: number of product codes in inventory
// Discussion:
// If a product with a code matching the parameter codeToFind is found in the array
// code then the index of this code is returned, otherwise -1 is returned
long readInventory(string,string[],string[],double[]);
// Parameters:
// storeName: name of store
// code: product codes in inventory
// description: product descriptions in inventory
// unitPrice: unit prices in inventory
// Discussion:
// Reads data from inventory file into arrays above.
// Returns number of products actually read
// Data file is formatted as follows:
// first line: name of the store (at most 40 characters)
// even-numbered lines: five-character product code followed by product description
// other odd-numbered lines: unit price of product described in above line
int main()
{
// Programmer: Mike Gozdiskowski
// Date: 11/13/2002
// Discussion: Allow user to search inventory of a small store.
//
// Input: User must enter product codes until a sentinel value is entered
// Output: If user enters a product code that corresponds to the inventory
// all of the information for that product code will be displayed
// on the screen and also printed to an output log file for future
// reference. If the user enters a bad product code; they are
// informed on the screen and also in the output file.
//Declaration & description of variables
string storeName; //Store name
string productCode; //Code entered by user
string A[30]; //Array to store values for code
string B[30]; //Array to store values for description
double C[30]; //Array to store values for price
long count; //Number of positions of array A with meaningful values
long index; //Array position for array
//Read data from file
count=readInventory(storeName,A,B,C);
//Print heading to log file program5.out
ofstream fout("program5.out");
fout<<storeName;
fout<<"Product Code Description Unit Price"<<endl;
fout<<"************ ************************* **********"<<endl;
//Welcome user to the program & ask for product code
cout<<"Welcome to "<<storeName<<endl;
cout<<"Please enter a product code (Q to Quit): ";
cin>>productCode;
//Loop until sentinel is entered
while(productCode!="Q")
{
//Use a function to search the product code array for this code
index=isInInventory(productCode,A,count);
//If the product code is found print information to the log file
//and the user screen otherwise print the product code and the error
//message to both the log file and the user screen
if(index>=0)
{
cout<<"Product Code: "<<A<<endl;
cout<<"Description: "<<B<<endl;
cout<<"Unit Price: "<<C<<endl;
fout<<setw(5)<<A<<setw(25)<<B<<setw(10)<<C<<endl;
}
else
{
cout<<productCode<<"ERROR: Invalid product code"<<endl;
fout<<productCode<<"ERROR: Invalid product code"<<endl;
}
//Ask user for next product code
cout<<"Next product code (Q to Quit): ";
cin>>productCode;
}
//Finish report and say goodbye to user
fout<<"End-of-Report"<<endl;
cout<<"Program terminated check program5.out for results"<<endl;
return 0;
}//main
long isInInventory(string codeToFind,string code[],long count)
{
//Searches array for number; return index if found, otherwise returns -1
long index; //Array index
//Loop: search positions 0 through count-1 of array codeToFind
for(index=0;index<count;index++)
//Is this the code we are looking for?
if(codeToFind[index]==count)
return count;
//Searched entire array without finding code
return -1; //Failed to find code
}//isInInventory
long readInventory(string &storeName,string code[],string description[],double unitPrice[])
{
//Reads data from file into arrays
string x; //Code value read from file
string y; //Description value read from file
double z; //UnitPrice read from file
long codeCount,descCount,priceCount; //Counters for arrays
ifstream fin("program5.txt"); //Data file
//Initialize number of values and get values from file
codeCount=0;
descCount=0;
priceCount=0;
fin>>x>>y>>z;
//Get store name
getline(fin, storeName);
//Loop: continue until eof has been reached
while(!fin.eof())
{
//Store value read in array code and update counter
code[codeCount]=x;
codeCount++;
//Store value in array description and update counter
description[descCount]=y;
descCount++;
//Store value in array unitPrice and update counter
unitPrice[priceCount]=z;
priceCount++;
//Read next values from file
fin>>x>>y>>z;
}//While
//Return number of values read
return storeName,codeCount,descCount,priceCount;
}//readInventory
