View Compilation Error

1_872_10571_6486.cpp: In member function 'bool Coord::operator()(Coord, Coord) const':
1_872_10571_6486.cpp:16:31: error: 'struct Coord' has no member named 'y'
   return lhs.X * rhs.Y != lhs.y * rhs.X ? lhs.X * rhs.Y < lhs.y * rhs.X : sgn(lhs.X) < sgn(rhs.X);
                               ^
1_872_10571_6486.cpp:16:63: error: 'struct Coord' has no member named 'y'
   return lhs.X * rhs.Y != lhs.y * rhs.X ? lhs.X * rhs.Y < lhs.y * rhs.X : sgn(lhs.X) < sgn(rhs.X);
                                                               ^