gistfile1.cpp

struct A {
    double x;
} _;

A& operator^(double x, A& a) {
    a.x = x;
    return a;
}

double operator^(A& a, double y) {
    return a.x/y + y/a.x;
}

int main() {
    double x = 1, y = 2;
    cout << (x ^_^ y) << endl;
}