/*                        GOLDFISH CLUB  early stage example test program */

#include <stdio.h>
#include <stdlib.h>
#include <iostream>
#include <fstream>
#include <string>

const int MAX_NUM_ENTRIES = 500;

string database[MAX_NUM_ENTRIES];
int num_entries=0;

void read_data(string filename)
{ ifstream file(filename.c_str());
  if (file.bad())
  { cerr << "** Can't read the file '" << filename << "'\n";
    exit(1); }
  num_entries=0;
  while (1)
  { if (num_entries>=MAX_NUM_ENTRIES)
    { cerr << "** File Too Long! Buy The Upgrade!!! **\n";
      exit(1); }
    getline(file, database[num_entries]);
    if (file.eof()) break;
    num_entries+=1; }
  cout << "[" << num_entries << " entries read]\n"; }

void print_data()
{ cout << "[printing all " << num_entries << " entries]\n";
  for (int i=0; i<num_entries; i+=1)
    cout << i << ": '" << database[i] << "'\n"; }

void main(int argc, char *argv[])
{ string progname=string(argv[0]), filename="";
  for (int i=1; i<argc; i+=1)         /* scan the command line arguments                   */
  { string thisarg=string(argv[i]);
    if (thisarg == "-h")              /* -h means want help                                */
    { cout << "To use this program, enter the command:\n";
      cout << "    " << progname << " filename\n";
      cout << "where filename is the name of the database-containing text file, or:\n";
      exit(0); }
    else
      filename=thisarg; }            /* anything else must be the file name.               */
                              /* if no filename provided, the variable filename will still */
                              /* be empty. read_data is built to detect that and use stdin.*/
  read_data(filename);
  print_data(); }