Point.cpp

#include <iostream>
using namespace std;

struct Point {
    double x, y;
};

string to_string(Point p) {
    return string("Point{") + to_string(p.x) + ", " + to_string(p.y) + "}";
}

int main() {
    Point origin{0, 0};
    cout << "origin is " << to_string(origin) << endl;
    return 0;
}