Need help with creating a separate CPP file for prototype funvtion

[David Adelman]

I need to create a separate cpp file to pull a function from, my book and power point slide don't go into much detail on this. Please help.
"Include at least one function in a separate .cpp file."

#include<iostream>
#include<iomanip>
#include<fstream>
#include<limits>
usingnamespace std;               



int main()
{
char again;// assigned variable for run again loop
do
 {
   int n;//n=number of computers
   int conn;// conn= total of connections

   cout <<"\t*********************************;
   cout <<******************************\n";
   cout <<"\t*This program will display a list;
   cout << of how many possible network*\n";
   cout <<"\t*connections you could have;
   cout << given any number of computers.*\n";
   cout <<"\t*********************************;
   cout <<******************************\n";
   cout <<"\n";
   cout <<"Enter the maximum number of computers\n";
   cout <<for which you would like to;
   cout <<calculate total connections:";
   cin >> n;


         //validate the input
    while(!cin || n <2)
{
        //Explain the invalid input.

        cin.clear();
        cin.ignore(numeric_limits <streamsize>::max(),'\n');
        cout <<"You must enter a number range from 2-10\n";
        cout <<"Please enter your selection again: \n";
        cin >> n;
}   
    //Block that will open file, write to file, and display to the console
    cout <<"\n";
    ofstream myFile;
    myFile.open("totalComputers.txt");
    cout <<"Number of Computers\tTotal Connections\n";
    myFile <<"Number of Computers\tTotal Connections\n";
    cout <<"////////////////////////////////////////\n";
    myFile <<"////////////////////////////////////////\n";


    for(int count=2; count <= n; count++)
        {

            conn = count *(count -1)/2;
            cout << setw(10)<< count << setw(24)<< conn << endl;
            myFile << setw(10)<< count << setw(24)<< conn << endl;

        }
          //This was implemented to close the file, 
          //and notify user that data write is complete.
            myFile.close();
            cout <<"\n";
            cout <<"The data file has finished writing.\n";




     //This will allow the user to run the program again or exit the program
       cout <<"\n";
       cout <<"Would you like to run the program again? y or n\n";
       cin >> again;
}while(again =='y');
       cout <<"Have a great day, please press any key to exit.\n";

return0;

}

[GReaper]

It depends on what tools you're using. If using any decent IDE, you should be able to create a project and inside that include all the source file you need to compile into a single executable. If not, and you're just using the command line, it's as easy as passing all the source files(*.cpp) at once.

Also, there are many errors in the code that you posted, you may want to check them out.

[Matticus]

Cross-posted: c++ - Need to create a separate cpp file for prototype function - Stack Overflow