X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?a=blobdiff_plain;ds=sidebyside;f=ginac%2Fregistrar.h;h=2bf97a5a48b8314250dee700b5a237365a23c709;hb=def26469ff96228c66e877bb5594e7d9a24b638f;hp=16f39020d9ec1d1b89834077b8a733de4d78687c;hpb=606c7c82026ad4323076fc89c5b2ecb2f0457536;p=ginac.git

diff --git a/ginac/registrar.h b/ginac/registrar.h
index 16f39020..2bf97a5a 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) 1999-2005 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2008 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
@@ -26,6 +26,7 @@
 #include <string>
 #include <list>
 #include <vector>
+#include <typeinfo>
 
 #include "class_info.h"
 #include "print.h"
@@ -35,9 +36,45 @@ namespace GiNaC {
 class ex;
 class archive_node;
 
-template <template <class> class> class container;
+template <template <class T, class = std::allocator<T> > class> class container;
 typedef container<std::list> lst;
 
+/** To distinguish between different kinds of non-commutative objects */
+struct return_type_t
+{
+	/// to distinguish between non-commutative objects of different type.
+	std::type_info const* tinfo; 
+	/// to distinguish between non-commutative objects of the same type.
+	/// Think of gamma matrices with different represenation labels.
+	unsigned rl;
+
+	/// Strict weak ordering (so one can put return_type_t's into
+	/// a STL container).
+	inline bool operator<(const return_type_t& other) const
+	{
+		if (tinfo->before(*other.tinfo))
+			return true;
+		return rl < other.rl;
+	}
+	inline bool operator==(const return_type_t& other) const
+	{
+		if (*tinfo != *(other.tinfo))
+			return false;
+		return rl == other.rl;
+	}
+	inline bool operator!=(const return_type_t& other) const
+	{
+		return ! (operator==(other));
+	}
+};
+
+template<typename T> inline return_type_t make_return_type_t(const unsigned rl = 0)
+{
+	return_type_t ret;
+	ret.rl = rl;
+	ret.tinfo = &typeid(T);
+	return ret;
+}
 
 /** Unarchiving function (static member function of every GiNaC class). */
 typedef ex (*unarch_func)(const archive_node &n, lst &sym_lst);
@@ -46,12 +83,14 @@ typedef ex (*unarch_func)(const archive_node &n, lst &sym_lst);
 /** This class stores information about a registered GiNaC class. */
 class registered_class_options {
 public:
-	registered_class_options(const char *n, const char *p, unsigned ti, unarch_func f)
-	 : name(n), parent_name(p), tinfo_key(ti), unarchive(f) {}
+	registered_class_options(const char *n, const char *p, 
+		                 const std::type_info& ti,
+		                 unarch_func f)
+	 : name(n), parent_name(p), tinfo_key(&ti), unarchive(f) {}
 
 	const char *get_name() const { return name; }
 	const char *get_parent_name() const { return parent_name; }
-	unsigned get_id() const { return tinfo_key; }
+	std::type_info const* get_id() const { return tinfo_key; }
 	unarch_func get_unarch_func() const { return unarchive; }
 	const std::vector<print_functor> &get_print_dispatch_table() const { return print_dispatch_table; }
 
@@ -86,7 +125,7 @@ public:
 private:
 	const char *name;         /**< Class name. */
 	const char *parent_name;  /**< Name of superclass. */
-	unsigned tinfo_key;       /**< TINFO_* key. */
+	std::type_info const* tinfo_key;        /**< Type information key. */
 	unarch_func unarchive;    /**< Pointer to unarchiving function. */
 	std::vector<print_functor> print_dispatch_table; /**< Method table for print() dispatch */
 };
@@ -137,18 +176,24 @@ protected: \
 	virtual int compare_same_type(const GiNaC::basic & other) const; \
 private:
 
+
 /** Macro for inclusion in the implementation of each registered class. */
 #define GINAC_IMPLEMENT_REGISTERED_CLASS(classname, supername) \
-	GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, TINFO_##classname, &classname::unarchive));
+	GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, typeid(classname), &classname::unarchive)); 
 
 /** Macro for inclusion in the implementation of each registered class.
  *  Additional options can be specified. */
 #define GINAC_IMPLEMENT_REGISTERED_CLASS_OPT(classname, supername, options) \
-	GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, TINFO_##classname, &classname::unarchive).options);
+	GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, typeid(classname), &classname::unarchive).options);
+
+/** Macro for inclusion in the implementation of each registered class.
+ *  Additional options can be specified. */
+#define GINAC_IMPLEMENT_REGISTERED_CLASS_OPT_T(classname, supername, options) \
+	GiNaC::registered_class_info classname::reg_info = GiNaC::registered_class_info(GiNaC::registered_class_options(#classname, #supername, typeid(classname), &classname::unarchive).options);
 
 
-/** Find TINFO_* key by class name. */
-extern unsigned find_tinfo_key(const std::string &class_name);
+/** Find type information key by class name. */
+extern std::type_info const* find_tinfo_key(const std::string &class_name);
 
 /** Find unarchiving function by class name. */
 extern unarch_func find_unarch_func(const std::string &class_name);