#include <iostream>
#include <deque>
 
using namespace std;
struct point_d
{
    double x;
    double y;
};
 
 
struct point_f
{
    float x;
    float y;
};
 
 
template<typename T>
void save_to_file(deque<T> points, const string filename)
{
    for (const auto & el : points) {
        std::cout << "{" << el.x << ", " << el.y << "}" << std::endl;
    }
}
int main() {
	deque<point_f> f = {{1,2}};
 
	save_to_file<point_f>(f, "test");
 
	deque<point_d> d = {{1,2}};
 
	save_to_file<point_d>(d, "test");
	return 0;
}

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