how to get min x y and max x y of an array of points using fold

[Thomas]

     struct Point
     {
     	double x, y;
     }


import std.algorithm : min, max;

auto min_x = double.max;
auto max_x = -double.max;
auto min_y = double.max;
auto max_y = -double.max;

     foreach (const ref p; points) // fold
     {
     	min_x = min(min_x, p.x);
     	max_x = max(max_x, p.x);
     	min_y = min(min_y, p.y);
     	max_y = max(max_y, p.y);
     }


Hello,

I am trying to find the min and max values from an array of 
points, I want to replace this with the std.algorithm fold, but I 
can't quite figure out the syntax for doing it?