/* ex_2_5.c++ */
#include <iostream>
using namespace std;

void fonction_val (int param) {
	cout << "fonction_val> ";
	cout << "param : " << &param << ":" << param << endl;
	param=3;
}

void fonction_ref (int& param) {
	cout << "fonction_ref> ";
	cout << "param : " << &param << ":" << param << endl;
	param=4;
}

void fonction_ptr (int * param) {
	cout << "fonction_ptr> ";
	cout << "param : " << &param << " : " << param << endl;
	cout << "fonction_ptr> ";
	cout << "*param : " << param << " : " << *param << endl;
	*param=5;
}

int& get_max_ref (int& param1, int& param2) {
	return ((param1>param2) ? param1 : param2);
} 

int main() {
	int a=1, b=1;
	cout << "main    1   > ";
	cout << "a : " << &a << " : " << a << endl;
	cout << "main    1   > ";
	cout << "b : " << &b << " : " << b << endl;
	int& c = b; 
	c=2;
	cout << "main    2   > ";
	cout << "c : " << &c << " : " << c << endl;
	cout << "main    2   > ";
	cout << "a=" << a << ", b=" << b << ", c=" << c << endl;
	fonction_val (b);
	cout << "main    3   > ";
	cout << "a=" << a << ", b=" << b << endl;
	fonction_ref (b);
	cout << "main    4   > ";
	cout << "a=" << a << ", b=" << b << endl;
	fonction_ptr (&b);
	cout << "main    5   > ";
	cout << "a=" << a << ", b=" << b << endl;
	int& d = get_max_ref(a, b);
	d = 6;
	cout << "main    6   > ";
	cout << "a=" << a << ", b=" << b << endl;
	get_max_ref(a, b) = 7;
	cout << "main    7   > ";
	cout << "a=" << a << ", b=" << b << endl;
}