source file of the Flower Library
- (c) 1997--1998 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>
-#include "stdlib.h" // size_t
+using namespace std;
+
+#define classname(class_ptr) demangle_classname (typeid (* (class_ptr)))
+
+char const *
+demangle_classname (type_info const &);
-#define classname(class_ptr) demangle_classname(typeid(*(class_ptr)).name())
+/*
+
+Virtual copy constructor. Make up for C++'s lack of a standard
+factory or clone () function. Usage:
-const char *
-demangle_classname (const char*);
+class Foo : Baseclass
+{
+VIRTUAL_COPY_CONSTRUCTOR (Baseclass, Foo);
+};
-/**
+*/
- Virtual copy constructor. Make up for C++'s lack of a standard
- clone() function. Uses a typeof hack. Usage:
+#define DECLARE_CLASSNAME(name) \
+ virtual const char *class_name () const { \
+ return #name; \
+}
- class Foo : Baseclass {
- VIRTUAL_COPY_CONS(Baseclass);
- };
-
- */
-#define VIRTUAL_COPY_CONS(base) virtual base *clone () const { return new typeof(*this) (*this); }
+#define VIRTUAL_COPY_CONSTRUCTOR(Base, name) \
+ DECLARE_CLASSNAME(name);\
+ virtual Base *clone () const \
+ { \
+ return new name (*this); \
+ }
-#endif
+#endif /* VIRTUAL_METHODS_HH */