//
// Example of using the C++ file system.

#include <iostream.h>
#include <fstream.h>


int main()
{
    cout << "Enter file name: ";
    std::string fileName;
    cin >> fileName;

    // Open the file.  Note the use of the c_str function.  
    // This is necessary in that the
    // constructor expects an old C style character string.
    ifstream input( fileName.c_str() );

    // If the file could not be open, report an error and terminate.
    if ( ! input ) 
    {
        cerr << "Could not open: " << fileName << endl;
        return 1;
    }

    // Display the contents of the file once.

    char buff[256];
    int lineNum = 0;

    while( !input.eof() ) 
    {
        input.getline( buff, 256 );
        cout << ++lineNum << ":  " << buff << endl;
    }

    // Rewinding to the beginning of the file.  
    // Note the clear to reset the EOF flag.  

    input.clear( );  
    input.seekg(0);    // Move read pointer back to 0 

    // Display the contents of the file a second time.
    lineNum = 0;
    while( !input.eof() ) 
    {
        input.getline( buff, 256 );
        cout << ++lineNum << ":  " << buff << endl;
    }

    cout << "test complete" << endl;
    return 0;
}