"Error: no operator for cin>>" I can't figure out what I'm doing wrong here

Question

I'm a student and just started learning C++ last week so this question is probably very low level but I can't figure it out.

I've searched around a bit but can't find any results, or maybe I'm looking for the wrong thing.

There are two cin parts. One taking in an int outside the loop, the other taking in a string inside the loop.

I'm getting a compile error saying ""Error no operator matches these commands" even though I just used them 5 lines ago.

Help?

#include <fstream>
#include <iostream>

using namespace std;

int main()
{
    // variable declaration
    const double payIncrease = 7.6;
    string employeeName;
    double initialSalary;
    double backPay;
    double employeeAnnualSalary;
    double employeeMonthlySalary;

    int numEmployees;

    // streams of information
    ofstream outStream;
    outStream.open("employeeRecords.txt");

    // console io's
    cout<<"Enter how many employees you have:";
    cin>>numEmployees;

    for(int i = 0; i <numEmployees;i++)
    {
            cout<<"What is Employee number: "<<i<<"'s name:";
            cin>>employeeName;

            cout<<"How much does that employee earn now: ";
            cin>>initialSalary;
    }

    outStream <<"annual salary was: " << numEmployees;
    outStream.close();

    return 0;

}

Answer 1

im getting a compile error saying ""Error no operator matches these commands" even though i just used them 5 lines ago. 

This sounds like a namespace issue.

Welcome to the wonderful world of programming. ;)

Answer 2

Total fluke.

i just put

 #include<string>

at the top.

I wasn't aware that the console couldn't handle Strings

Answer 3

Here is a version that actually compiles. You can figure out what you missed on your own ;-)

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

int main()
{
    cout << "Enter how many employees you have:";
    int numEmployees = 0;
    cin >> numEmployees;

    for(int i = 0; i < numEmployees; ++i)
    {
        cout << "What is Employee number: " << i << "'s name:";
        string employeeName;
        cin >> employeeName;
    }
}

Answer 4

im getting a compile error saying Error no operator matches these commands even though i just used them 5 lines ago.

If this refers to the snipped you posted, then you're wrong. As all other functions, operators can be overloaded in C++. This means there can be several functions using the same name, provided they take different arguments (or are either const or not member functions).

The variable name numEmployees looks to me as if it would refer to a number, while employeeName likely refers to a string. So this would call two different overloads of operator>>() for inputting these variables.

For reasons I'm omitting here, the operator>>() overload reading into a string is defined in the header <string>, while those for built-in types (int etc.) are in defined in <istream>, which you usually get by including <iostream>.

So, given what little information you gave us, this is a long shot, but I suppose you're missing an #include <string>.