///////////////////////////////////////////////////////////////
//  exmp2f.cpp - recursion with functions                    //
//                                                           //
//  Jim Fawcett, ELE591\791, Su'99                           //
//                                                           //
//  build: cl /GX exmp2f.cpp                                 //
///////////////////////////////////////////////////////////////

#include <iostream>
#include <fstream>
#include <string>
using namespace std;

//----< a recursive function which reorders lines from a file >------

void recurse(istream &in) {

  string line;
  getline(in,line);
  if(in.good())
    recurse(in);
  cout << line << endl;
}

//----< test >-------------------------------------------------------

void main(int argc, char *argv[]) {

  if(argc == 1) {
    cout << "\n  please enter name of file to process\n\n";
    return;
  }
  ifstream in;
  int i;
  for(i=1; i<argc; i++) {
    in.open(argv[i]);
    if(!in.good()) {
      cout << "\n  can't open file " << argv[i] << "\n\n";
      continue;
    }
    cout << "\n  opening file " << argv[i] << "\n\n";
    if(in.good())
      recurse(in);
    in.close();
  }
  cout << '\n';
}