/*
- virtual-methods.hh -- declare macros for our do-it-yourself RTTI
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the Flower Library
+ Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-*/
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
#ifndef VIRTUAL_METHODS_HH
#define VIRTUAL_METHODS_HH
#include <typeinfo>
-
-#define classname(class_ptr) demangle_classname (typeid (* (class_ptr)))
-
-const char *
-demangle_classname (std::type_info const &);
-
-/**
-
- Virtual copy constructor. Make up for C++'s lack of a standard
- clone () function. Uses a typeof hack. Usage:
-
- class Foo : Baseclass {
- VIRTUAL_COPY_CONS (Baseclass);
- };
-
- */
+using namespace std;
/*
- fix constness: gcc-2.95 is correct in defining
-
- typeof (*this)
-
- in a const member function to be const
+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);
+};
*/
-#define VIRTUAL_COPY_CONS(base) \
- virtual base* clone_const_helper () \
- { \
- return new typeof (*this) (*this); \
- } \
- virtual base* clone () const \
- { \
- base* urg = (base*)this; \
- return urg->clone_const_helper (); \
- }
+#define DECLARE_CLASSNAME(name) \
+ virtual const char *class_name () const { \
+ return #name; \
+}
+
+#define VIRTUAL_COPY_CONSTRUCTOR(Base, name) \
+ DECLARE_CLASSNAME(name);\
+ virtual Base *clone () const \
+ { \
+ return new name (*this); \
+ }
#endif /* VIRTUAL_METHODS_HH */