// Phil Ottewell's STL Course - http://www.pottsoft.com/home/stl/stl.htmlx
//
// Example 6.1                  © Phil Ottewell 1997 <philXZY@pottsoftXZY_REMOVEXYZ.com>
//
// Purpose:
//          Demonstrate input and output iterators from and to a file

// ANSI C Headers
#include <stdlib.h>

// C++ STL Headers
#include <algorithm>
#include <fstream>
#include <iostream>
#include <vector>

#ifdef _WIN32
using namespace std;
#endif

int main( int argc, char *argv[] )
{
    int i, iarray[] = { 1,3,5,7,11,13,17,19 };
    fstream my_file("vector.dat",ios::out);// Add |ios::nocreate to avoid 
                                           // creation if it doesn't exist
    vector<int> v1, v2;

    for (i = 0;i<sizeof(iarray)/sizeof(iarray[0]); ++i) v1.push_back(iarray[i]);

//  Write v1 to file
    copy(v1.begin(),v1.end(), ostream_iterator<int,char>(my_file," "));
    cout << "Wrote vector v1 to file vector.dat" << endl;

//  Close file
    my_file.close();

//  Open file for reading or writing
    my_file.open( "vector.dat", ios::in|ios::out );

//  Read v2 from file
    copy( istream_iterator<int,char>(my_file), // Start of my_file
          istream_iterator<int,char>(),        // Val. returned at eof
          inserter(v2,v2.begin())); 

    cout << "Read vector v2 from file vector.dat" << endl;
    for ( vector<int>::const_iterator iv=v2.begin(); iv != v2.end(); ++iv )
      cout << *iv << " ";
    cout << endl;

    return( EXIT_SUCCESS );
}