- introduced info_flag::algebraic.

[ginac.git] / ginac / idx.h

diff --git a/ginac/idx.h b/ginac/idx.h
index fa0b8ce35f952170fe926e62ea9e7d33f636a804..334b58cadb1ab1abe795a885f893765c00cc0314 100644 (file)
--- a/ginac/idx.h
+++ b/ginac/idx.h
@@ -3,7 +3,7 @@
  *  Interface to GiNaC's indices. */
 
 /*
- *  GiNaC Copyright (C) 1999 Johannes Gutenberg University Mainz, Germany
+ *  GiNaC Copyright (C) 1999-2000 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
@@ -24,32 +24,36 @@
 #define __GINAC_IDX_H__
 
 #include <string>
-#include <vector>
-#include <ginac/basic.h>
-#include <ginac/ex.h>
+//#include <vector>
+#include "basic.h"
+#include "ex.h"
 
+#ifndef NO_NAMESPACE_GINAC
 namespace GiNaC {
+#endif // ndef NO_NAMESPACE_GINAC
 
 class idx : public basic
 {
+    GINAC_DECLARE_REGISTERED_CLASS(idx, basic)
+
 // member functions
 
     // default constructor, destructor, copy constructor assignment operator and helpers
 public:
     idx();
     ~idx();
-    idx (idx const & other);
-    idx const & operator=(idx const & other);
+    idx (const idx & other);
+    const idx & operator=(const idx & other);
 protected:
-    void copy(idx const & other);
+    void copy(const idx & other);
     void destroy(bool call_parent);
 
     // other constructors
 public:
     explicit idx(bool cov);
-    explicit idx(string const & n, bool cov=false);
-    explicit idx(char const * n, bool cov=false);
-    explicit idx(unsigned const v, bool cov=false); 
+    explicit idx(const string & n, bool cov=false);
+    explicit idx(const char * n, bool cov=false);
+    explicit idx(unsigned v, bool cov=false); 
 
     // functions overriding virtual functions from bases classes
 public:
@@ -59,14 +63,14 @@ public:
     void print(ostream & os, unsigned upper_precedence=0) const;
     bool info(unsigned inf) const;
 protected:
-    int compare_same_type(basic const & other) const;
-    bool is_equal_same_type(basic const & other) const;
+    int compare_same_type(const basic & other) const;
+    bool is_equal_same_type(const basic & other) const;
     unsigned calchash(void) const;
-    ex subs(lst const & ls, lst const & lr) const;
+    ex subs(const lst & ls, const lst & lr) const;
 
     // new virtual functions which can be overridden by derived classes
 public:
-    virtual bool is_co_contra_pair(basic const & other) const;
+    virtual bool is_co_contra_pair(const basic & other) const;
     virtual ex toggle_covariant(void) const;
 
     // non-virtual functions in this class
@@ -74,7 +78,7 @@ public:
     bool is_symbolic(void) const;
     unsigned get_value(void) const;
     bool is_covariant(void) const;
-    void setname(string const & n) {name=n;}
+    void setname(const string & n) {name=n;}
     string getname(void) const {return name;}
 
     // member variables
@@ -90,7 +94,7 @@ protected:
 // global constants
 
 extern const idx some_idx;
-extern type_info const & typeid_idx;
+extern const type_info & typeid_idx;
 
 // utility functions
 inline const idx &ex_to_idx(const ex &e)
@@ -100,17 +104,19 @@ inline const idx &ex_to_idx(const ex &e)
 
 // global functions
 
-typedef vector<ex> exvector;
+// typedef vector<ex> exvector;
 
 int canonicalize_indices(exvector & iv, bool antisymmetric=false);
-exvector idx_intersect(exvector const & iv1, exvector const & iv2);
-ex permute_free_index_to_front(exvector const & iv3, exvector const & iv2,
+exvector idx_intersect(const exvector & iv1, const exvector & iv2);
+ex permute_free_index_to_front(const exvector & iv3, const exvector & iv2,
                                bool antisymmetric, int * sig);
-unsigned subs_index_in_exvector(exvector & v, ex const & is, ex const & ir);
-ex subs_indices(ex const & e, exvector const & idxv_contra,
-                exvector const & idxv_co);
-unsigned count_index(ex const & e, ex const & i);
+unsigned subs_index_in_exvector(exvector & v, const ex & is, const ex & ir);
+ex subs_indices(const ex & e, const exvector & idxv_contra,
+                const exvector & idxv_co);
+unsigned count_index(const ex & e, const ex & i);
 
+#ifndef NO_NAMESPACE_GINAC
 } // namespace GiNaC
+#endif // ndef NO_NAMESPACE_GINAC
 
 #endif // ndef __GINAC_IDX_H__