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operator overloading question

Posted on 2003-12-05
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Last Modified: 2010-04-01
ok, I will poost my code below. I get these two errors:
(54) : error C2601: '>>' : local function definitions are illegal
(54) : fatal error C1903: unable to recover from previous error(s); stopping compilation
Error executing cl.exe.
These errors begin at the open bracket after this line:
ifstream & operator>> (ifstream& stream, employee& p)
I'm not sure what to do. Here is my code:

#include<iostream>
#include<fstream>
#include<string>
#include<cstdlib>
using namespace std;

class employee
{
public:
  friend ifstream &operator>>(ifstream& stream, employee& p);
  string lname;
  string fname;
  string address;
  string city;
  string state;
  string zip;
  char hos;
  int payrate;
  int hours;
  int dependents;
  int gpay;
  int fed;
  int state1;
  int social;
  int net;
  int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
};
employee::employee();
int main()
{
  char in[20];
  char out[20];
  char str[1024], last;
  cout<<"Enter the name of the file you want to write to."<<endl;
  cin.get(out, 20);
  cin.ignore(80, '\n');
  cout<<"Enter the name of the file you want to read from."<<endl;
  cin.get(in, 20);
  cin.ignore(80, '\n');
  ifstream infile;
  infile.open(in);
  ofstream outfile;
  outfile.open(out);

ifstream & operator>> (ifstream& stream, employee& p)
{
   char tmp[80];
 
   stream.getline(tmp, 80, '|');
   p.setfname(tmp);

   stream.getline(tmp, 80, '|');
   p.setlname(tmp);

   stream.getline(tmp, 80, '|');
   p.setaddress(tmp);

   stream.getline(tmp, 80, '|');
   p.setcity(tmp);

   stream.getline(tmp, 80, '|');
   p.setstate(tmp);

   stream.getline(tmp, 80, '|');
   p.setzip(tmp);

   stream.getline(tmp, 80, '|');
   p.sethos(tmp);

   stream.getline(tmp, 80, '|');
   p.setpayrate(tmp);

   stream.getline(tmp, 80, '|');
   p.sethours(tmp);

   stream.getline(tmp, 80, '|');
   p.setdependents(tmp);

  return stream;
}
  employee compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
  infile.close();
  outfile.close();
  return 0;
}
0
Comment
Question by:dukemarlon
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8 Comments
 
LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 9886174
Your operator is defined embedded in the main function. I have not comiled it, but this is definitely a problem. Also, the line employee::employee(); is wrong. The definition of your employee class is incomplete: All the methods that you reference in the operator are not defined. Try to correct these problems, and if it's still not working, post a comment.

Try this:

#include<fstream>
#include<string>
#include<cstdlib>
using namespace std;

class employee
{
public:
  friend ifstream &operator>>(ifstream& stream, employee& p);
  string lname;
  string fname;
  string address;
  string city;
  string state;
  string zip;
  char hos;
  int payrate;
  int hours;
  int dependents;
  int gpay;
  int fed;
  int state1;
  int social;
  int net;
  int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
};



int main()
{
  char in[20];
  char out[20];
  char str[1024], last;
  cout<<"Enter the name of the file you want to write to."<<endl;
  cin.get(out, 20);
  cin.ignore(80, '\n');
  cout<<"Enter the name of the file you want to read from."<<endl;
  cin.get(in, 20);
  cin.ignore(80, '\n');
  ifstream infile;
  infile.open(in);
  ofstream outfile;
  outfile.open(out);
  employee compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
  infile.close();
  outfile.close();
  return 0;
}

ifstream & operator>> (ifstream& stream, employee& p)
{
   char tmp[80];
 
   stream.getline(tmp, 80, '|');
   p.setfname(tmp);

   stream.getline(tmp, 80, '|');
   p.setlname(tmp);

   stream.getline(tmp, 80, '|');
   p.setaddress(tmp);

   stream.getline(tmp, 80, '|');
   p.setcity(tmp);

   stream.getline(tmp, 80, '|');
   p.setstate(tmp);

   stream.getline(tmp, 80, '|');
   p.setzip(tmp);

   stream.getline(tmp, 80, '|');
   p.sethos(tmp);

   stream.getline(tmp, 80, '|');
   p.setpayrate(tmp);

   stream.getline(tmp, 80, '|');
   p.sethours(tmp);

   stream.getline(tmp, 80, '|');
   p.setdependents(tmp);

  return stream;
}
0
 
LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 9886176
Your operator is defined embedded in the main function. I have not comiled it, but this is definitely a problem. Also, the line employee::employee(); is wrong. The definition of your employee class is incomplete: All the methods that you reference in the operator are not defined. Try to correct these problems, and if it's still not working, post a comment.

Try this:

#include<fstream>
#include<string>
#include<cstdlib>
using namespace std;

class employee
{
public:
  friend ifstream &operator>>(ifstream& stream, employee& p);
  string lname;
  string fname;
  string address;
  string city;
  string state;
  string zip;
  char hos;
  int payrate;
  int hours;
  int dependents;
  int gpay;
  int fed;
  int state1;
  int social;
  int net;
  int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
};



int main()
{
  char in[20];
  char out[20];
  char str[1024], last;
  cout<<"Enter the name of the file you want to write to."<<endl;
  cin.get(out, 20);
  cin.ignore(80, '\n');
  cout<<"Enter the name of the file you want to read from."<<endl;
  cin.get(in, 20);
  cin.ignore(80, '\n');
  ifstream infile;
  infile.open(in);
  ofstream outfile;
  outfile.open(out);
  employee compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
  infile.close();
  outfile.close();
  return 0;
}

ifstream & operator>> (ifstream& stream, employee& p)
{
   char tmp[80];
 
   stream.getline(tmp, 80, '|');
   p.setfname(tmp);

   stream.getline(tmp, 80, '|');
   p.setlname(tmp);

   stream.getline(tmp, 80, '|');
   p.setaddress(tmp);

   stream.getline(tmp, 80, '|');
   p.setcity(tmp);

   stream.getline(tmp, 80, '|');
   p.setstate(tmp);

   stream.getline(tmp, 80, '|');
   p.setzip(tmp);

   stream.getline(tmp, 80, '|');
   p.sethos(tmp);

   stream.getline(tmp, 80, '|');
   p.setpayrate(tmp);

   stream.getline(tmp, 80, '|');
   p.sethours(tmp);

   stream.getline(tmp, 80, '|');
   p.setdependents(tmp);

  return stream;
}
0
 
LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 9886177
Your operator is defined embedded in the main function. I have not comiled it, but this is definitely a problem. Also, the line employee::employee(); is wrong. The definition of your employee class is incomplete: All the methods that you reference in the operator are not defined. Try to correct these problems, and if it's still not working, post a comment.

Try this:

#include<fstream>
#include<string>
#include<cstdlib>
using namespace std;

class employee
{
public:
  friend ifstream &operator>>(ifstream& stream, employee& p);
  string lname;
  string fname;
  string address;
  string city;
  string state;
  string zip;
  char hos;
  int payrate;
  int hours;
  int dependents;
  int gpay;
  int fed;
  int state1;
  int social;
  int net;
  int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
};



int main()
{
  char in[20];
  char out[20];
  char str[1024], last;
  cout<<"Enter the name of the file you want to write to."<<endl;
  cin.get(out, 20);
  cin.ignore(80, '\n');
  cout<<"Enter the name of the file you want to read from."<<endl;
  cin.get(in, 20);
  cin.ignore(80, '\n');
  ifstream infile;
  infile.open(in);
  ofstream outfile;
  outfile.open(out);
  employee compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
  infile.close();
  outfile.close();
  return 0;
}

ifstream & operator>> (ifstream& stream, employee& p)
{
   char tmp[80];
 
   stream.getline(tmp, 80, '|');
   p.setfname(tmp);

   stream.getline(tmp, 80, '|');
   p.setlname(tmp);

   stream.getline(tmp, 80, '|');
   p.setaddress(tmp);

   stream.getline(tmp, 80, '|');
   p.setcity(tmp);

   stream.getline(tmp, 80, '|');
   p.setstate(tmp);

   stream.getline(tmp, 80, '|');
   p.setzip(tmp);

   stream.getline(tmp, 80, '|');
   p.sethos(tmp);

   stream.getline(tmp, 80, '|');
   p.setpayrate(tmp);

   stream.getline(tmp, 80, '|');
   p.sethours(tmp);

   stream.getline(tmp, 80, '|');
   p.setdependents(tmp);

  return stream;
}
0
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LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 9886179
Your operator is defined embedded in the main function. I have not comiled it, but this is definitely a problem. Also, the line employee::employee(); is wrong. The definition of your employee class is incomplete: All the methods that you reference in the operator are not defined. Try to correct these problems, and if it's still not working, post a comment.

Try this:

#include<fstream>
#include<string>
#include<cstdlib>
using namespace std;

class employee
{
public:
  friend ifstream &operator>>(ifstream& stream, employee& p);
  string lname;
  string fname;
  string address;
  string city;
  string state;
  string zip;
  char hos;
  int payrate;
  int hours;
  int dependents;
  int gpay;
  int fed;
  int state1;
  int social;
  int net;
  int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
};



int main()
{
  char in[20];
  char out[20];
  char str[1024], last;
  cout<<"Enter the name of the file you want to write to."<<endl;
  cin.get(out, 20);
  cin.ignore(80, '\n');
  cout<<"Enter the name of the file you want to read from."<<endl;
  cin.get(in, 20);
  cin.ignore(80, '\n');
  ifstream infile;
  infile.open(in);
  ofstream outfile;
  outfile.open(out);
  employee compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
  infile.close();
  outfile.close();
  return 0;
}

ifstream & operator>> (ifstream& stream, employee& p)
{
   char tmp[80];
 
   stream.getline(tmp, 80, '|');
   p.setfname(tmp);

   stream.getline(tmp, 80, '|');
   p.setlname(tmp);

   stream.getline(tmp, 80, '|');
   p.setaddress(tmp);

   stream.getline(tmp, 80, '|');
   p.setcity(tmp);

   stream.getline(tmp, 80, '|');
   p.setstate(tmp);

   stream.getline(tmp, 80, '|');
   p.setzip(tmp);

   stream.getline(tmp, 80, '|');
   p.sethos(tmp);

   stream.getline(tmp, 80, '|');
   p.setpayrate(tmp);

   stream.getline(tmp, 80, '|');
   p.sethours(tmp);

   stream.getline(tmp, 80, '|');
   p.setdependents(tmp);

  return stream;
}
0
 
LVL 44

Expert Comment

by:Karl Heinz Kremer
ID: 9886277
... so it did work :-) Sorry about that. My browser timed out three times, so I resubmitted the comment a number of times.
0
 

Author Comment

by:dukemarlon
ID: 9886284
it kinda fixed it, but now inside of the overloaded function, can't figure out how to set values to any of the objects, I was barraged with errors, and can't figure most of them out.
0
 

Author Comment

by:dukemarlon
ID: 9886317
here is what I have, but every object in the overloaded function says it is an illeagal reference




#include<iostream>
#include<fstream>
#include<string>
#include<cstdlib>
using namespace std;

class employee
{
public:
  friend ifstream &operator>>(ifstream& stream, employee& p);
  string lname;
  string fname;
  string address;
  string city;
  string state;
  string zip;
  char hos;
  int payrate;
  int hours;
  int dependents;
  int gpay;
  int fed;
  int state1;
  int social;
  int net;
  int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
};
employee employee();







int main()
{
  char in[20];
  char out[20];
  char str[1024], last;
  cout<<"Enter the name of the file you want to write to."<<endl;
  cin.get(out, 20);
  cin.ignore(80, '\n');
  cout<<"Enter the name of the file you want to read from."<<endl;
  cin.get(in, 20);
  cin.ignore(80, '\n');
  ifstream infile;
  infile.open(in);
  ofstream outfile;
  outfile.open(out);

   

  employee::compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos);
  infile.close();
  outfile.close();
  return 0;
}

int compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos)
{
  if(hos=='h'||'H')gpay=hours*payrate*100;
  if(hos=='s'||'S')gpay=payrate/26*100;
  fed=(gpay*26)-(2500*dependents)*(.28/.26)*100;
  state1=gpay*.048*100;
  social=gpay*.075*100;
  return (gpay, fed, state1, social);
}





ifstream & operator>> (ifstream& stream, employee&)
{
   char tmp[80];
 
   stream.getline(tmp, 80, '|');
   employee::fname=tmp;

   stream.getline(tmp, 80, '|');
   employee::lname=tmp;

   stream.getline(tmp, 80, '|');
   employee::address=tmp;

   stream.getline(tmp, 80, '|');
   employee::city=tmp;

   stream.getline(tmp, 80, '|');
   employee::state=tmp;

   stream.getline(tmp, 80, '|');
   employee::zip=tmp;

   stream.getline(tmp, 80, '|');
   employee::hos=tmp;

   stream.getline(tmp, 80, '|');
   employee::payrate=tmp;

   stream.getline(tmp, 80, '|');
   employee::hours=tmp;

   stream.getline(tmp, 80, '|');
   employee::dependents=tmp;

  return stream;
}
0
 
LVL 44

Accepted Solution

by:
Karl Heinz Kremer earned 800 total points
ID: 9886429
The function header of compute has to look like this:

int employee::compute(int payrate, int hours, int dependents, int gpay, int fed, int state1, int social, int net, char hos)
{
  if(hos=='h'||'H')gpay=hours*payrate*100;
  if(hos=='s'||'S')gpay=payrate/26*100;
  fed=(gpay*26)-(2500*dependents)*(.28/.26)*100;
  state1=gpay*.048*100;
  social=gpay*.075*100;
  return (gpay, fed, state1, social);
}

The header of the operator>> should look like this:

ifstream & operator>> (ifstream& stream, employee& e)

Then in the body of the method use e.variable_name instead of employee::variable_name. This syntax only works for static member variables.

Remove the line "employee employee();" right after the class declaration.

In main() define a variable of type employee:

employee myEmployee;

Then call the compute() method like this:
myEmployee.compute(...);

Also, you are not using your operator>>



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