X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fregistrar.h;h=6969f0c23bb66cd5b27ccc7167125000edb0bdc3;hp=1473bbb88b26a49d4915ab8e13e1e3cbc5d50e0a;hb=80355fb3d929ecec98171db7a0286b8eda877669;hpb=956eeb82c513a723e864edefa857133282cf692b

diff --git a/ginac/registrar.h b/ginac/registrar.h
index 1473bbb8..6969f0c2 100644
--- a/ginac/registrar.h
+++ b/ginac/registrar.h
@@ -3,7 +3,7 @@
  *  GiNaC's class registrar (for class basic and all classes derived from it). */
 
 /*
- *  GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2003 Johannes Gutenberg University Mainz, Germany
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -24,19 +24,20 @@
 #define __GINAC_REGISTRAR_H__
 
 #include <string>
+#include <list>
 
-#ifndef NO_NAMESPACE_GINAC
 namespace GiNaC {
-#endif // ndef NO_NAMESPACE_GINAC
 
 class registered_class_info;
 class ex;
 class archive_node;
-class lst;
+
+template <template <class> class> class container;
+typedef container<std::list> lst;
 
 
 /** Unarchiving function (static member function of every GiNaC class). */
-typedef ex (*unarch_func)(const archive_node &n, const lst &sym_lst);
+typedef ex (*unarch_func)(const archive_node &n, lst &sym_lst);
 
 
 /** Head of list of all registered_class_info structures. */
@@ -45,48 +46,75 @@ extern registered_class_info *first_registered_class;
 
 /** This structure stores information about a registered GiNaC class. */
 struct registered_class_info {
-    registered_class_info(const char *n, const char *s, unsigned int k, unarch_func f)
-        : name(n), super(s), tinfo_key(k), unarchive(f)
-    {
-        // Add structure to list
-        next = first_registered_class;
-        first_registered_class = this;
-    }
-
-    registered_class_info *next;	/**< Pointer to next registered_class_info in list. */
-    const char *name;				/**< Class name. */
-    const char *super;				/**< Name of superclass. */
-    unsigned int tinfo_key;			/**< TINFO_* key. */
-    unarch_func unarchive;			/**< Pointer to unarchiving function. */
+	registered_class_info(const char *n, const char *s, unsigned int k, unarch_func f)
+		: name(n), super(s), tinfo_key(k), unarchive(f)
+	{
+		// Add structure to list
+		next = first_registered_class;
+		first_registered_class = this;
+	}
+
+	registered_class_info *next;  /**< Pointer to next registered_class_info in list. */
+	const char *name;             /**< Class name. */
+	const char *super;            /**< Name of superclass. */
+	unsigned int tinfo_key;       /**< TINFO_* key. */
+	unarch_func unarchive;        /**< Pointer to unarchiving function. */
 };
 
 
-/** Macro for inclusion in the declaration of each registered class. */
+/** Primary macro for inclusion in the declaration of each registered class. */
+#define GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
+public: \
+	typedef supername inherited; \
+	\
+	static GiNaC::registered_class_info reg_info; \
+	virtual const char *class_name() const; \
+	\
+	classname(const GiNaC::archive_node &n, GiNaC::lst &sym_lst); \
+	virtual void archive(GiNaC::archive_node &n) const; \
+	static GiNaC::ex unarchive(const GiNaC::archive_node &n, GiNaC::lst &sym_lst); \
+	\
+	class visitor { \
+	public: \
+		virtual void visit(const classname &) = 0; \
+	};
+
+/** Macro for inclusion in the declaration of each registered class.
+ *  It declares some functions that are common to all classes derived
+ *  from 'basic' as well as all required stuff for the GiNaC class
+ *  registry (mainly needed for archiving). */
 #define GINAC_DECLARE_REGISTERED_CLASS(classname, supername) \
+	GINAC_DECLARE_REGISTERED_CLASS_NO_CTORS(classname, supername) \
 public: \
-    typedef supername inherited; \
-    static registered_class_info reg_info; \
-    virtual const char *class_name(void) const; \
-    classname(const archive_node &n, const lst &sym_lst); \
-    virtual void archive(archive_node &n) const; \
-    static ex unarchive(const archive_node &n, const lst &sym_lst); \
+	classname(); \
+	classname * duplicate() const { return new classname(*this); } \
+	\
+	void accept(GiNaC::visitor & v) const \
+	{ \
+		if (visitor *p = dynamic_cast<visitor *>(&v)) \
+			p->visit(*this); \
+		else \
+			inherited::accept(v); \
+	} \
+protected: \
+	int compare_same_type(const GiNaC::basic & other) const; \
 private:
 
-/** Macro for inclusion in the implementation of each registered class. */
+/** Macro for inclusion in the implementation of each registered class.
+ *  It defines some members that are the same in all classes derived from
+ *  'basic'. */
 #define GINAC_IMPLEMENT_REGISTERED_CLASS(classname, supername) \
-    registered_class_info classname::reg_info(#classname, #supername, TINFO_##classname, &classname::unarchive); \
-    const char *classname::class_name(void) const {return reg_info.name;}
+	GiNaC::registered_class_info classname::reg_info(#classname, #supername, TINFO_##classname, &classname::unarchive); \
+	const char *classname::class_name() const {return reg_info.name;}
 
 
 /** Find TINFO_* key by class name. */
-extern unsigned int find_tinfo_key(const string &class_name);
+extern unsigned int find_tinfo_key(const std::string &class_name);
 
 /** Find unarchiving function by class name. */
-extern unarch_func find_unarch_func(const string &class_name);
+extern unarch_func find_unarch_func(const std::string &class_name);
 
 
-#ifndef NO_NAMESPACE_GINAC
 } // namespace GiNaC
-#endif // ndef NO_NAMESPACE_GINAC
 
 #endif // ndef __GINAC_REGISTRAR_H__