/* multiplication table for the integers 1 to 10 */
#include <iostream>
#include <fstream>
using namespace std;

void printheadings(ofstream &);             //function prototypes
void printrow(ofstream &, int);

int main()
{
    // declare and open the output file
    //ofstream outfile("c:\\bc\\CISC1110\\pgms\\chapter5\\myoutput.txt"); //comment-out for debugging
    ofstream outfile("con");                //un-comment for debugging

    printheadings(outfile);
    for (int m1 = 1; m1 <= 10; m1++)
        printrow(outfile, m1);              //m1 = multiplicand

    outfile.close();                        //close the output file

//  system("pause");                        //un-comment when using DevC++
    return 0;
}

/* Function printheadings()
 * Input:
 *  out1 - a reference to the output file
 * Process:
 *  prints headings for a multiplication chart
 * Output:
 *  prints the table headings
 */
void printheadings(ofstream &out1)
{
    out1 << "\tThis is a Multiplication Table from 1 to 10" << endl << endl;
    out1.width(5);
    out1 << "X";
    /* loop to print the heading of multipliers */
    for (int m2 = 1; m2 <= 10; m2++)
    {
        out1.width(5);
        out1 << m2;
    }
    out1 << endl;
    return;
}

/* Function printrow()
 * Input:
 *  out2 - a reference to the output file
 *  m1 - the current multiplicand
 * Process:
 *  prints a row of a multiplication table by calculating the
 *  first 10 multiples of the multiplicand.
 * Output:
 *  prints a row of the table
 */
void printrow(ofstream &out2, int m1)
{
    out2.width(5);
    out2 << m1;                             //prints the multiplicand
    for (int m2 = 1; m2 <= 10; m2++)        //m2=multiplier
    {
        out2.width(5);
        out2 << m1 * m2;                    //prints the product
    }
    out2 << endl;
    return;
}