More tests for equality operator overloading

Examples/test-suite/equality.i

@@ -0,0 +1,67 @@
+/* File : equality.i */
+/*
+ Specific test for operator== overload. Partially overlaps with
+ operator_overload.i
+*/
+
+%module equality
+
+%inline %{
+
+/* Point has no equality operator */
+typedef struct Point
+{
+  double x;
+  double y;
+} Point;
+
+static const Point s_zeroPoint = { 0.0, 0.0 };
+/* stack version */
+Point MakePoint(double x, double y) 
+  { Point new_point = {x, y}; return new_point; }
+
+const Point* GetZeroPointPtr() { return &s_zeroPoint; }
+Point GetZeroPointCopy() { return s_zeroPoint; }
+
+/* EqualOpDefined has correct equality operator */
+class EqualOpDefined {
+public:
+  EqualOpDefined():
+    x(5) {}
+  EqualOpDefined(int val):
+    x(val) {}
+
+  int x;
+};
+
+/* EqualOpWrong has logically incorrect equality operator */
+class EqualOpWrong {
+public:
+  inline static const EqualOpWrong* GetStaticObject();
+};
+ 
+static const EqualOpWrong s_wrongEqOp;
+
+const EqualOpWrong* EqualOpWrong::GetStaticObject()
+  { return &s_wrongEqOp; }
+
+
+inline bool operator==( const EqualOpDefined& first, const EqualOpDefined& second )
+  { return first.x == second.x; }
+
+inline bool operator==( const EqualOpWrong& first, const EqualOpWrong& second )
+  { return false; }
+
+%}
+
+/* 
+  in order to wrapper this correctly
+  we need to extend the class
+  to make the friends & non members part of the class
+*/
+%extend EqualOpDefined {
+	bool operator==(const EqualOpDefined& b){return (*$self) == b;}
+}
+%extend EqualOpWrong {
+	bool operator==(const EqualOpWrong& b){return (*$self) == b;}
+}