Implement some equality operators

Author: fontanf

include/packingsolver/box/instance.hpp

@@ -31,6 +31,9 @@ struct Point
     Length z;
 };
 
+inline bool operator==(const Point& point_1, const Point& point_2) { return point_1.x == point_2.x && point_1.y == point_2.y && point_1.z == point_2.z; }
+inline bool operator!=(const Point& point_1, const Point& point_2) { return !(point_1 == point_2); }
+
 std::ostream& operator<<(
         std::ostream& os,
         Point xyz);
@@ -78,6 +81,9 @@ struct Box
 
 };
 
+inline bool operator==(const Box& box_1, const Box& box_2) { return box_1.x == box_2.x && box_1.y == box_2.y && box_1.z == box_2.z; }
+inline bool operator!=(const Box& box_1, const Box& box_2) { return !(box_1 == box_2); }
+
 std::ostream& operator<<(
         std::ostream& os,
         Box box);

include/packingsolver/box/solution.hpp

@@ -19,6 +19,9 @@ struct SolutionItem
     int rotation;
 };
 
+inline bool operator==(const SolutionItem& solution_item_1, const SolutionItem& solution_item_2) { return solution_item_1.item_type_id == solution_item_2.item_type_id && solution_item_1.bl_corner == solution_item_2.bl_corner && solution_item_1.rotation == solution_item_2.rotation; }
+inline bool operator!=(const SolutionItem& solution_item_1, const SolutionItem& solution_item_2) { return !(solution_item_1 == solution_item_2); }
+
 struct SolutionBin
 {
     /** Bin type. */