source file of the Flower Library
- (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#ifndef VIRTUAL_METHODS_HH
#define VIRTUAL_METHODS_HH
#include <typeinfo>
+using namespace std;
#define classname(class_ptr) demangle_classname (typeid (* (class_ptr)))
char const *
-demangle_classname (std::type_info const &);
+demangle_classname (type_info const &);
-/* Virtual copy constructor. Make up for C++'s lack of a standard
- factory or clone () function. Uses a typeof hack. Usage:
+/*
+
+Virtual copy constructor. Make up for C++'s lack of a standard
+factory or clone () function. Usage:
+
+class Foo : Baseclass
+{
+VIRTUAL_COPY_CONSTRUCTOR (Baseclass, Foo);
+};
+
+*/
- class Foo : Baseclass
- {
- VIRTUAL_COPY_CONSTRUCTOR (Baseclass, Foo);
- }; */
+#define DECLARE_CLASSNAME(name) \
+ virtual const char *class_name () const { \
+ return #name; \
+}
-#define VIRTUAL_COPY_CONSTRUCTOR(Base, name) \
- virtual Base *clone () const \
- { \
- return new name (*this); \
+#define VIRTUAL_COPY_CONSTRUCTOR(Base, name) \
+ DECLARE_CLASSNAME(name);\
+ virtual Base *clone () const \
+ { \
+ return new name (*this); \
}
#endif /* VIRTUAL_METHODS_HH */