read from file

[Andym]

So part of my school assignment is to read from a file. In my file, I have "0 50 100". Why is it that when I cout the contents of Line1, Line2 & Line3, I get something other than 0 50 & 100. I have tried declaring the variables as string, int, float & double and I get something different each time but NEVER 0 50 or 100.

Everything else works as intended.

  #include <iostream>
#include <fstream>
#include <string>

using namespace std;
//-------------------Function declarations
int GetUserInput();
int ConvertTemp(double CelsiusTemp);
void PerformFileOperations();
//-------------------Main body
int main()
{
    double ConvertedTemp;
    double CelsiusTemp;
    CelsiusTemp = GetUserInput();//GetUserInput function
    ConvertedTemp = ConvertTemp(CelsiusTemp);//ConvertTemp function
    cout << CelsiusTemp << " degrees celsius converts to " << ConvertedTemp << " degrees farenheit." << endl;
    PerformFileOperations();
    return 0;
}//end main
//------------------Functions
//------------------GetUserInput
int GetUserInput ()
{
    double CelsiusTemp;
    cout<< "Enter Celcius Temperature to Convert::" << endl;
    cin>>CelsiusTemp;
    return (CelsiusTemp);
}//end GetUserInput
//------------------ConvertTemp
int ConvertTemp (double CelsiusTemp)
{
    double ConvertedTemp;
    ConvertedTemp = (9.0/5.0) * CelsiusTemp + 32.0;
    return ConvertedTemp;
}//end ConvertTemp
//------------------PerformFileOperations
void PerformFileOperations()
{
    int Line1, Line2, Line3;
    ifstream DataFile;
    DataFile.open("celsius_input.dat");
    DataFile >> Line1 >> Line2 >> Line3;
    DataFile.close();
  cout << Line1 << ' ' << Line2 << ' ' << Line3 << endl;
}//end PerformFileOperations 

[Yanson]

works fine for me

my output

Enter Celcius Temperature to Convert::
100
100 degrees celsius converts to 212 degrees farenheit.
0 50 100

[Andym]

Thanks. Maybe this is one of the quirks of Xcode.