NetNews Offline 2/NetNews Offline Volume 2.iso/news/comp/lang/c++-part1/8729

Text File | 1996-08-05 | 7.3 KB | 249 lines

Path: ix.netcom.com!netnews
From: [e-mail] (wells)
Newsgroups: comp.lang.c++
Subject: need help with functions
Date: Mon, 26 Feb 1996 07:45:23 GMT
Organization: Netcom
Message-ID: <4grqta$[e-mail]>
NNTP-Posting-Host: irv-ca15-23.ix.netcom.com
X-NETCOM-Date: Mon Feb 26 12:27:22 AM PST 1996
X-Newsreader: Forte Free Agent 1.0.82



  I am learning c++, I wrote this program and I have a problem with it
that i cant figure out. I am doin this for my class in college. I am
using pass by reference in my functions, and  i have an error that
says something like.... "Get_payment is not suffieciently different
then Get_Payment", or something... I dont understand why.
The program has that error and 4 other warnings, I am not worried
about the warnings, they have to do with my pow(x,x) statement being a
float and not an int. I am just worried about the function error. If
anyone can help I would greatly appreaciate it. And let me know what I
am doing wrong...

thanks very much..
edward
[e-mail]





/////////////////////////////////////////////////////////////////////
// Edward  //



#include <stdio.h>                               // Header.h
#include <iostream.h>                            // Header.h
#include <math.h>                                // Header.h




void Loan_Payment();                              // Function Prototype

void Maturity();                                    // Function Prototype

void Get_Payment(float,float,int,float);         // Function Prototype

void Get_Maturity(float,int,float,float,float);  // Function Prototype





void main(void)
{


    int user_selection;    // variable to hold the menu selection


    /// Main Menu ////////////////////////////////////////////
    //

    cout << "----------- Main Menu ------------\n"; //
    cout << "\n";                                   //
    cout << "<1> Loan Payment\n";                   //   print menu on
    cout << "<2> Maturity\n";                       //   the screen.
    cout << "\n";                                   //
    cout << "Enter Your Selection -->";             //


    cin >> user_selection;                          //     get user
selection.


    switch (user_selection)
        {


        case '1':             //
            {                //  If user selected '1', then
            Loan_Payment();  //  go to the funtion "Loan_Payment".
            break;           //
            }                //



        case '2':             //
            {                //     If user selected '2', then
            Maturity();      //  go to the function "Maturity".
            break;           //
            }                //


        default:                     //
            {                         // If user selected neither one
            cout << "Bad Selection"; // then end the program.
            }                        //

        }  // End of switch


cout << "End Of Program";    // End the program.
} // End of Program.



////////////////////////////// Functions
///////////////////////////////


void Loan_Payment(void)   // This is the function for figuring loan
                          // payments.


    {
    float loan_amount;        // holds the loan amount.
    float interest_rate;    // holds the interest rate.
    float payment;            // hold the final payment amount.
    int number_of_payments; // holds the number of payments.



    cout << "Enter the full loan amount ->";      //     input
    cin >> loan_amount;                           //     data
                                                  //     from
    cout << "\nEnter the interest rate ->";       //     the
    cin >> interest_rate;                         //     user
                                                  //
    cout << "\nEnter the number of payments ->";  //
    cin >> number_of_payments;                    //



    Get_Payment(loan_amount,interest_rate,        //  go calculate payment
                number_of_payments,payment);      //  in function
Get_Payment.



    cout << "The Payment is ->";     //  Print the answer to
    cout << payment;                //  the screen.

    return;

    }



//////////////////////////////////////////////////////////


void Maturity(void)
    {
    float investment_amount;  // holds the investment amount.
    float interest_rate;      // holds the interest rate.
    float time_in_years;      // holds the length in years.
    float times_compounded;      // holds the times compounded a year.
    float maturity;              // holds the maturity.


    cout << "\nEnter the investment amount ->";       //
    cin >> investment_amount;                         //
                                                      //
    cout << "\nEnter the interest rate ->";           //  get the input
    cin >> interest_rate;                             //
                                                      //  from the user
    cout << "\nEnter the time in years ->";           //
    cin >> time_in_years;                             //
                                                      //
    cout << "\nHow many times compounded yearly ->";  //
    cin >> times_compounded;                          //



    Get_Maturity(investment_amount,time_in_years,           // get the
                 times_compounded,maturity,interest_rate);  // maturity.

    cout << "\nThe maturity is ->";     //  output to the
    cout << maturity;                   //  screen.

    return;
    }



///////////////////////////////////////////////////////////




void Get_Payment(float &loan_amount,float &interest_rate,int
&number_of_payments,
            float &payment)

    {

    float temp1,temp2,temp3,temp4; // temp variables during math.

    interest_rate - interest_rate / 1200;                //
    temp1 = (1+interest_rate);                           // do the math
    temp2 = pow(temp1,number_of_payments)* interest_rate;// for payment.
    temp3 = (1+interest_rate);                           //
    temp4 = pow(temp3,number_of_payments)-1;             //
    payment = ((temp2/temp4)*loan_amount);               //
    return;
    }




//////////////////////////////////////////////////////////





void Get_Maturity( float &investment_amount,float &time_in_years,
                   float ×_compounded,float &maturity,
                   float &interest_rate)

    {
    float temp1;  // temporary for math function.
    float temp2;  // temporary for math function.
    float temp3;  // temporary for math function.

    interest_rate = interest_rate /100;            //
    temp1 = ((interest_rate/times_compounded)+1);  // Do the math to
    temp2 = (time_in_years * times_compounded);    // get the maturity.
    temp3 = pow(temp1,temp2);                      //
    maturity = (temp3 * investment_amount);        //

    return;
    }


/////////////////////////////////////////////////////