//-----------------------------------------------------------------
//
// templates1.cpp
//
// Illustrating basic things about template functions
// 
// written by: Simon Parsons
// modified  : 19th May 2010
//
//-----------------------------------------------------------------

#include <iostream>
using namespace std;

// Template function definitions

// mmax

template<typename T>
T mmax(T x, T y){
  if(x > y){
    return x;
  }
  else {
    return y;
  }
}

// gThan, with two parameter types

template<typename T, typename U>
bool gThan(T x, U y){
  if(x > y){
    return true;
  }
  else {
    return false;
  }
}

// average, with a variable of unspecified type and an int parameter

template<class T>
T average(T *tArray, int number){
  T tSum = 0;
  for(int i = 0; i < number; i++){
    tSum += tArray[i];
  }
  
  tSum /= number;
  return tSum;
}

main(){
  
  int    iValue = mmax(3, 7);
  double dValue = mmax(2.3, 6.5);
  char   cValue = mmax('a', '6');

  cout << "With ints " << iValue << endl;
  cout << "With doubles " << dValue << endl;  
  cout << "With chars " << cValue << endl;

  if (gThan(7, 4.3)){
    cout << "yes!" << endl;
  }

  int iArray[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
  cout << average(iArray, 10) << endl;

  double dArray[] = {1.1, 2.2, 3.3, 4.4, 5.5, 6.6, 7.7, 8.8, 9.9, 10.10};
  cout << average(dArray, 10) << endl;
}