std::copy

template<class C>
void print(const C& bla)
{
	for(auto& elmt : bla)
	{
		std::cout << elmt << std::endl;
	}
	std::cout << std::endl;
}


struct Int
{
	Int(int i)
		: m_i(i)
	{
		std::cout << "creating " << m_i << std::endl;
	}

	Int(const Int& j)
		: m_i(j.m_i)
	{
		std::cout << "copying " << m_i << std::endl;
	}

	~Int()
	{
		std::cout << "deleting " << m_i << std::endl;
	}

	operator int() const
	{
		return m_i;
	}

	int m_i;
};


int main(int argc, char* argv[])
{
	std::cout << "|\n|\n";

	std::string s1 = "hello ";
	std::string s2 = "world ";

	std::string&& s3 = s1 + s2;

	s3 += "friend ";

	std::cout << s3 << std::endl;

	s2 = "my ";

	std::cout << s3 << std::endl;

	{

		std::vector<Int> V = { 1, 2, 3, 4, 5, 6 };
		print(V);

		std::list<Int> L = { 7, 8, 9 };
		print(L);

		std::set<Int> S = { 10, 11, 12 };
		print(S);

		auto it = std::copy(L.begin(), L.end(), V.begin());
		print(V);

		std::copy_if(S.begin(), S.end(), it, [](const Int& a){ return a % 2; });
		print(V);


	}
}

produces

creating 1
creating 2
creating 3
creating 4
creating 5
creating 6
copying 1
copying 2
copying 3
copying 4
copying 5
copying 6
deleting 6
deleting 5
deleting 4
deleting 3
deleting 2
deleting 1
1
2
3
4
5
6

creating 7
creating 8
creating 9
copying 7
copying 8
copying 9
deleting 9
deleting 8
deleting 7
7
8
9

creating 10
creating 11
creating 12
copying 10
copying 11
copying 12
deleting 12
deleting 11
deleting 10
10
11
12

7
8
9
4
5
6

7
8
9
11
5
6

deleting 12
deleting 11
deleting 10
deleting 7
deleting 8
deleting 9
deleting 7
deleting 8
deleting 9
deleting 11
deleting 5
deleting 6