/* An example on the use of  .getline() :

                                        file: 6ex6.cpp

   FALL 1998

   ___________________________________

   Jacob Y. Kazakia   jyk0

   October 21, 1998

   Recitation Instructor: J.Y.Kazakia

   Recitation Section  01

   ___________________________________



Purpose: This program reads from a file named 6ex6data.txt.  It uses the

         function    .getline to  skip the first  few  lines of the file

         and then read the second line of the numerical data.



         The file 6ex6data.txt  looks like this:





_________________________________________________________________



            THE DRAG FORCE CALCULATED FOR AN OBJECT OF

               FRONTAL AREA 2 m2  USING  cd = 0.3



              Speed                     Drag Force

       m/s         miles/hour        Newtons      Pounds



         0              0              0              0

         5        11.1857         9.1875        2.06553

        10        22.3714          36.75        8.26214

        15         33.557        82.6875        18.5898

        20        44.7427            147        33.0485

        25        55.9284        229.688        51.6383

        30        67.1141         330.75        74.3592

        35        78.2998        450.188        101.211

        40        89.4855            588        132.194



  End of this table

__________________________________________________________________



                                                                   */



#include <iostream.h>

#include <iomanip.h>

#include <fstream.h>



void main()

{

// declare the variables of the main function



float speedMPS;

float speedMPH;

float dragNEWTONS;

float dragPOUNDS;



char a[80]; // array used to store the data read from the first 8 lines

int m;



ifstream table ( "6ex6data.txt" , ios:: in);





for ( m = 0 ; m <= 7 ; m++ )

{

table.getline( a, 80 );

}



//  read the data desired



table >> speedMPS >> speedMPH >> dragNEWTONS >> dragPOUNDS;



//  output the data



cout << " \n speed in meters per second " << speedMPS ;

cout << " \n speed in miles per hour    " << speedMPH ;

cout << " \n drag force in Newtons      " << dragNEWTONS ;

cout << " \n drag force in pounds       " << dragPOUNDS ;





cout<<" \n\n enter e (exit) to terminate the program....";

char hold;

cin>>hold;

}