Payroll Class with vectors

[Ion93]

Hey guys I'm writing a Payroll class program to calculate gross pay

Write a program that processes Payroll objects. The program should read the
employee surname,number of hours worked,and their hourly pay-rate from a file

The file is below.

So the part im currently having trouble with is writing a function to read in the data from the file into a vector so i can manipulate the vector and display my end results. Any help on how i can fix this would be great thank you!

Jones   38.5     9.50
King    40.0     9.00
Lee     16.0     7.50
Sanchez 40.0     8.00
Smith   40.0    10.00
Taylor  38.0     8.00
Tucker  22.5     9.50

#include <iostream>
#include <iomanip>
#include <fstream>
#include <vector>
#include <string>
using namespace std;

class Payroll {
private:

    double rate;
    double hours;
    string name;
    double gross;

public:
    Payroll();

    void setRate(double);
    void setHours(double);
    void setGross(double);

    double getRate() const {
        return rate;
    }
    double getHours() const {
        return hours;
    }
    double getGross() const {
        return gross;
    }
};

// Constructor
Payroll::Payroll ()
{
    rate = 0;
    hours = 0;
    gross = 0;
}

// Vector read in function

void readFunction(ifstream &inFile, vector<Payroll> &list);

int main()
{

    ifstream datafile;
    datafile.open("payroll.txt");
    if (!datafile)
        cout << "Error opening data file \n";

    return 0;
}

void Payroll::setRate(double r)

{
    if (r > 0) {
        rate = r;
    }

}

void Payroll::setHours(double h)

{
    if (h > 0) {
        hours = h;
    }

}

void Payroll::setGross(double g)

{

    gross = g;
    g = hours * rate;

}

void readFunction(ifstream &inFile, vector<Payroll> &list)

{
    string name;
    double hours;
    double rate;
    double count;      // count number of items in the file

    if (inFile) {
        double count;      // count number of items in the file

        // read the elements in the file into a vector
        while ( inFile >> list ) {
            list.push_back(count);
            ++count;
        }
    }
}

[Esslercuffi]

Seems like your problem is that you're trying to read from the file directly to the vector.
try something like:

void readFunction( ifstream &inFile, vector<Payroll> &list )
{
	string name;
	double hours;
	double rate;
	double count;      // count number of items in the file
	Payroll temp;

	if( inFile )
	{
		double count;      // count number of items in the file

		// read the elements in the file into a vector
		while( inFile >> temp )
		{
			list.push_back( temp );
			++count;
		}
	}
}

You'll need to overload the >> operator of Payroll for this to work. Either that, or extract each data item into individual variables, and construct a temporary Payroll object from them. then push_back the temp object.

[Ion93]

still getting an error when i do that to...

[Esslercuffi]

did you see the edits to my above post?

I don't have time tonight to get into the details of how to make a constructor that would read an entire record. But someone else should be able to help.

[Ion93]

yea just saw it now. Thanks ill work on it and get back to you still a beginner so these things take me awhile.

[Ion93]

ok here is my new code now I'm not really sure how i display the contents of my vector to see if i did my read function correctly

#include <iostream>
#include <iomanip>
#include <fstream>
#include <vector>
#include <string>
using namespace std;

class Payroll {

private:

    double rate;
    double hours;
    double gross;
    string name;

public:
    
    Payroll();
    Payroll (string n, double h, double r);
   
   
    void setRate(double);
    void setHours(double);
    void setName(string);
    void setGross(double);
    
    double getRate() const {
        return rate;
    }
    double getHours() const {
        return hours;
    }
    double getGross() const {
        return gross;
    }
};

// Constructor
Payroll::Payroll ()
{
    name = " ";
    rate = 0;
    hours = 0;
    
}
// parameter constructor
Payroll::Payroll (string n, double h, double r)
    { 
        name = n;
        hours = h;
        rate = r;
    }
// Vector read in function

void readFunction(ifstream &inFile, vector<Payroll> &list);

int main()
{

    ifstream inFile;
    Payroll payroll;
    vector<Payroll> list;
    
    inFile.open("payroll.txt");
    if (!inFile)
    {
        cout << "Error opening data file \n";
    }
    else
    {
        readFunction(inFile, list);
    }    
    return 0;
}

void Payroll::setRate(double r)

{
    if (r > 0) {
        rate = r;
    }

}

void Payroll::setHours(double h)

{
    if (h > 0) {
        hours = h;
    }

}

void Payroll::setName(string n)
{
   name = n;
}

void Payroll::setGross(double)
{
        gross = hours * rate;
}

void readFunction( ifstream &inFile, vector<Payroll> &list )
{
    string name;
    double hours = 0;
    double rate = 0;
    double count = 0;      // count number of items in the file
    Payroll payroll;
    
    if( inFile )
    {
        // read the elements in the file into a vector
        while( inFile >> name >> hours >> rate )
        {
            payroll = Payroll(name, hours, rate);
            list.push_back( payroll );
            ++count;
        }
    }
}