// OK, I can't define a print method for ints, but I can teach
// cout how to print animals and humans. That gives me a way
// to deal with animals, humans, and ints with the same
// functions.

#include <string>
#include <iostream>

struct animal
{ string name, species;
  int weight, price;
  animal(string n, string s, int w, int p)
  { name=n; species=s; weight=w; price=p; } };

struct human
{ string name;
  int weight, phone;
  human(string n, int w, int p)
  { name=n; weight=w; phone=p; } };

ostream & operator<<(ostream & os, animal * ap)
{ os << "  " << ap->name << "/" << ap->species << ":" << ap->weight << "g," << ap->price << "c";
  return os; }

ostream & operator<<(ostream & os, human * hp)
{ os << "  " << hp->name << ", " << hp->weight << " lbs, " << hp->phone;
  return os; }

template <typename T>
  void printall(T * data, int N)
  { for (int i=0; i<N; i+=1)
      cout << data[i] << "\n"; }

template <typename T>
  T * reprice(T * a)
  { a->price = (int)(a->price*1.1 + 0.5);
    return a; }

template <typename T>
  T * fatten(T * a)
  { a->weight = (int)(a->weight*1.2 + 0.5);
    return a; }

template <typename T>
  void map(T * f(T *), T * * data, int N)
  { for (int i=0; i<N; i+=1)
      data[i] = f(data[i]); } 

animal * findfattest(animal * * db, int N)
{ animal * f = db[0];
  for (int i=1; i<N; i+=1)
    if (db[i]->weight > f->weight)
      f = db[i];
  return f; }

void main()
{ animal * * list = new animal * [10];
  list[0] = new animal("anne", "ant", 1, 1);
  list[1] = new animal("bert", "badger", 400, 50);
  list[2] = new animal("colin", "cobra", 50, 75);
  list[3] = new animal("donna", "donkey", 1200, 123);
  list[4] = new animal("ella", "elephant", 345678, 3200);
  list[5] = new animal("frank", "frog", 120, 7);
  list[6] = new animal("geoffrey", "georaffe", 3456, 5450);
  list[7] = new animal("hanna", "hamster", 12, 43);
  list[8] = new animal("iggy", "iguana", 160, 72);

  human * * people = new human * [7];
  people[0] = new human("James", 145, 6341234);
  people[1] = new human("Jason", 132, 8756134);
  people[2] = new human("Jemimah", 107, 3627212);
  people[3] = new human("Jilly", 121, 5551212);
  people[4] = new human("Joe", 180, 2223333);

  int * numbers = new int[7];
  numbers[0] = 0;
  numbers[1] = 1;
  numbers[2] = 22;
  numbers[3] = 333;
  numbers[4] = 4444;
  numbers[5] = 55555;
  numbers[6] = 666666;

  cout << "original animals\n";
  printall(list, 9);
  map(reprice, list, 9);
  map(fatten, list, 9);
  cout << "after inflation\n";
  printall(list, 9);
  animal * a = findfattest(list, 9);
  cout << "fattest animal is " << a << "\n";
  cout << "\n";

  cout << "original people\n";
  printall(people, 5);
  map(fatten, people, 5);
  cout << "after inflation\n";
  printall(people, 5);
  cout << "\n";

  cout << "original numbers\n";
  printall(numbers, 7); }