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

ostream& operator<<(ostream& out, const list<int>& li);

int main()
{
	// Constructors
	list<int> li1;
	list<int> li2(5);
	list<int> li3(5,19);
	list<int> li4{2,3,5,7,11,13,17};
	
	cout << "li2=" << li2 << endl;
	cout << "li3=" << li3 << endl;
	cout << "li4=" << li4 << endl << endl;
	
	//    list<int> li5(li4.begin(),li4.begin()+3);  ERROR
	list<int> li5(li4.begin(),++++++li4.begin());   // ???
	list<int> li6(li4);
	list<int> li7(move(li4));
	
	cout << "li4=" << li4 << endl;
	cout << "li5=" << li5 << endl;
	cout << "li6=" << li6 << endl;
	cout << "li7=" << li7 << endl << endl;
	
	cout << "capacity functions" << endl;
	cout << li1.size() << ' ' << boolalpha << li1.empty() << endl;
	
	cout << endl << "access functions" << endl;
	cout << "li6.front()=" << li6.front() << endl;
	cout << "li6.back()=" << li6.back() << endl;
	
	cout << endl << "iterator functions" << endl;
	cout << "*li6.begin()=" << *li6.begin() << endl;
	cout << "*++li6.begin()=" << *++li6.begin() << endl;
	cout << "*--li6.end()=" << *--li6.end() << endl;
	cout << "*li6.rbegin()=" << *li6.rbegin() << endl;
	cout << "*++li6.rbegin()=" << *++li6.rbegin() << endl;
	cout << "*--li6.rend()=" << *--li6.rend() << endl;
	
	cout << endl << "assign" << endl;
	li1.assign({7,6,5,4,3,2,1});
	cout << "li1=" << li1 << endl;
	li2.assign(++li1.crbegin(),--li1.crend());
	cout << "li2=" << li2 << endl;
	li3.assign(5,7);
	cout << "li3=" << li3 << endl << endl;
	
	cout << "erase" << endl;
	li2.erase(++li2.begin());
	cout << "li2=" << li2 << endl;
	li1.erase(++li1.begin(),--li1.end());
	cout << "li1=" << li1 << endl << endl;
	
	cout << "insert" << endl;
	li2.insert(++li2.begin(),3);
	cout << "li2=" << li2 << endl;
	li2.insert(++li2.begin(),li3.begin(),li3.end());
	cout << "li2=" << li2 << endl << endl;
	
	cout << "push_front / pop_back" << endl;
	li1.push_front(1);
	li1.pop_back();
	cout << "li1=" << li1 << endl << endl;
	
	cout << "swap" << endl;
	li1.swap(li2);
	cout << "li1=" << li1 << endl << endl;
	
	cout << "resize" << endl;
	li1.resize(5);
	cout << "li1=" << li1 << endl;
	li1.resize(10);
	cout << "li1=" << li1 << endl;
}

ostream& operator<<(ostream& out, const list<int>& li)
{
	for (auto element : li)
		out << element << ' ';
	return out;
}