Remove obscure mpointer example and replace with member_pointer.i testcase and runtime examples

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@9887 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/test-suite/member_pointer.i

@@ -0,0 +1,101 @@
+%module member_pointer
+
+%inline %{
+class Shape {
+public:
+  Shape() {
+    nshapes++;
+  }
+  virtual ~Shape() {
+    nshapes--;
+  };
+  double  x, y;   
+  double  *z;
+
+  void    move(double dx, double dy);
+  virtual double area(void) = 0;
+  virtual double perimeter(void) = 0;
+  static  int nshapes;
+};
+
+class Circle : public Shape {
+private:
+  double radius;
+public:
+  Circle(double r) : radius(r) { };
+  virtual double area(void);
+  virtual double perimeter(void);
+};
+  
+class Square : public Shape {
+private:
+  double width;
+public:
+  Square(double w) : width(w) { };
+  virtual double area(void);
+  virtual double perimeter(void);
+};
+
+extern double do_op(Shape *s, double (Shape::*m)(void));
+
+/* Functions that return member pointers */
+
+extern double (Shape::*areapt())(void);
+extern double (Shape::*perimeterpt())(void);
+
+/* Global variables that are member pointers */
+extern double (Shape::*areavar)(void);
+extern double (Shape::*perimetervar)(void);
+
+%}
+
+%{
+#  define M_PI 3.14159265358979323846
+
+/* Move the shape to a new location */
+void Shape::move(double dx, double dy) {
+  x += dx;
+  y += dy;
+}
+
+int Shape::nshapes = 0;
+
+double Circle::area(void) {
+  return M_PI*radius*radius;
+}
+
+double Circle::perimeter(void) {
+  return 2*M_PI*radius;
+}
+
+double Square::area(void) {
+  return width*width;
+}
+
+double Square::perimeter(void) {
+  return 4*width;
+}
+
+double do_op(Shape *s, double (Shape::*m)(void)) {
+  return (s->*m)();
+}
+
+double (Shape::*areapt())(void) {
+  return &Shape::area;
+}
+
+double (Shape::*perimeterpt())(void) {
+  return &Shape::perimeter;
+}
+
+/* Member pointer variables */
+double (Shape::*areavar)(void) = &Shape::area;
+double (Shape::*perimetervar)(void) = &Shape::perimeter;
+%}
+
+
+/* Some constants */
+%constant double (Shape::*AREAPT)(void) = &Shape::area;
+%constant double (Shape::*PERIMPT)(void) = &Shape::perimeter;
+%constant double (Shape::*NULLPT)(void) = 0;
+