SOURCE FILE: 02_read_intsB.cpp
#include <iostream>
#include<fstream>
//#include <cmath>
using namespace std ;
/*
*/
int main ()
{
char filename[256] ;
cout << "Please type the name of a file: " ;
cin >> filename ;
ifstream fin ;
fin.open(filename);
if (fin.fail())
{
cout << "FAILED TO OPEN FILE: " << filename << endl ;
exit(1) ;
}
int next_int ;
/* If the file is not empty, the 'priming read' below, reads the first
value from the file and puts a copy of the value into this
variable: next_int. If the file is empty, the attempt to read
causes the 'end-of-file condition' (eof) to become true. */
fin >> next_int ; // the 'priming read'
while ( !fin.eof() ) // while NOT eof in fin
{
// print the value that was last read from fin
cout << next_int << endl ;
/* Now attempt to read the next value. If there is no next
value, this attempt causes eof to become true. */
fin >> next_int ;
}
fin.close() ;
cout << endl ;
cout << "\nAll Done!!\n\n" ;
return 0 ;
}