/*
 * dynamic.cpp
 *
 *  Created on: 14.03.2013
 *      Author: trifon
 */

#include <cmath>
#include <iostream>
using namespace std;

void f(int x, double y, int z = 1, char t = 'a') {
	cout << "x = " << x << endl;
	cout << "y = " << y << endl;
	cout << "z = " << z << endl;
	cout << "t = " << t << endl;
}

void memoryLeak() {
	const int MAX = 2000000;
	while (1) {
		double* p = new double[MAX];
		for(int i = 0; i < MAX; i++)
			p[i] = 0;
		cout << "OK\n";
		cin.get();
	}
}

void average() {
	double* a[100];
	// TODO: за произволен брой числа
	int i = 0;
	do {
		a[i] = new double;
		cin >> *a[i];
		i++;
	} while (*a[i-1] > 0);
	int n = i - 1;
	double sum = 0;
	for(int j = 0; j < n; j++)
	{
		sum += *a[j];
		cout << *a[j] << endl;
	}
	cout << sum / n << endl;
	for(int j = 0; j < n; j++)
		delete a[j];
}

void transposeMatrix() {
	int n, m;
	cout << "Брой редове: ";
	cin >> n;
	cout << "Брой стълбове: ";
	cin >> m;
	int** a = new int*[n];
	for(int i = 0; i < n; i++)
		a[i] = new int[m];

	for(int i = 0; i < n; i++)
		for(int j = 0; j < m; j++) {
			cout << "a[" << i << "][" << j << "] = ";
			cin >> a[i][j];
		}

	if (n == m)
		for(int i = 0; i < n; i++)
			for(int j = 0; j < i; j++)
			{
				int x = a[i][j];
				a[i][j] = a[j][i];
				a[j][i] = x;
			}

	for(int i = 0; i < n; i++) {
		for(int j = 0; j < m; j++)
			cout << a[i][j] << ' ';
		cout << endl;
	}

	for(int i = 0; i < n; i++)
		delete[] a[i];
	delete[] a;
}

int main() {
	// memoryLeak();
	// transposeMatrix();
	// average();

	int *p = new int;
	*p = 5;
	// !!! не се препоръчва!
	int& y = *p;
	y = 2;

	cout << *p << endl;
	int *p2 = p;
	*p2 = 10;
	cout << *p << endl;
	delete p2;
	// !!!!! *p = 20;
	// !!!!! cout << *p << endl;
	p = new int[10];
	for(int i = 1; i <= 10; i++) {
		p[i-1] = i;
		cout << p[i-1] << ' ';
	}
	cout << endl;
	// !!! delete [] (p+2);
	// !!! delete (p+2);
	// !!! (delete p) + 2;
	delete[] p;
	// може и
	// delete p;
	// !!!p = NULL;
	// !!! delete p;
	// !!!!delete[] p;

	int x;
	p = &x;
	// !!! delete p;
	// !!! double (*op)(double) = sin;
	// !!! delete op;
	// !!! void* v = op;
	// !!! delete v;
	cout << "Живи сме още!";

	f(1, 1.2);
	f(1, 1.2, 5);
	f(1, 1.2, 5, 'b');

	return 0;
}