auto arr1 = Array!int(1, 2);
auto arr2 = Array!int(1, 2);
auto arr3 = Array!int(2, 3);
auto arr4 = Array!int(0, 3);
assert(arr1 <= arr2);
assert(arr2 >= arr1);
assert(arr1 < arr3);
assert(arr3 > arr1);
assert(arr4 < arr1);
assert(arr4 < arr3);
assert(arr3 > arr4);