#include <iostream>
 
 
template <typename T>
struct some_other_allocator : std::allocator<T>{};
 
 
 
using other_string = std::basic_string<char, std::char_traits<char>, some_other_allocator<char>>;
 
int main() {
	other_string string1("hello");
 
	//using std::string constructor
	std::string string2(string1.begin(),string1.end());
 
	std::string string2_copy;
	//using std::copy
	std::copy(string1.begin(),string1.end(),std::back_inserter(string2_copy));
 
	std::cout << string1 << std::endl;
	std::cout << string2 << std::endl;
	std::cout << string2_copy << std::endl;
	return 0;
}

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