* Add Pearu's patch canonicalizing class relational, augmented by missing

[ginac.git] / ginac / relational.h

diff --git a/ginac/relational.h b/ginac/relational.h
index fc559b5fafb4f297a885d0040f8fabc882af8a70..8f2263e64b4e220e34bf906b59306ce5a2165502 100644 (file)
--- a/ginac/relational.h
+++ b/ginac/relational.h
@@ -49,7 +49,7 @@ public:
 public:
        relational(const ex & lhs, const ex & rhs, operators oper=equal);
        
-       // functions overriding virtual functions from bases classes
+       // functions overriding virtual functions from base classes
 public:
        void print(const print_context & c, unsigned level = 0) const;
        unsigned precedence(void) const {return 20;}
@@ -63,6 +63,8 @@ protected:
        bool match_same_type(const basic & other) const;
        unsigned return_type(void) const;
        unsigned return_type_tinfo(void) const;
+       bool is_equal_same_type(const basic & other) const;
+       unsigned calchash(void) const;
 
        // new virtual functions which can be overridden by derived classes
 public:
@@ -83,13 +85,6 @@ protected:
 
 // utility functions
 
-/** Return the relational object handled by an ex.  Deprecated: use ex_to<relational>().
- *  This is unsafe: you need to check the type first. */
-inline const relational &ex_to_relational(const ex &e)
-{
-       return static_cast<const relational &>(*e.bp);
-}
-
 /** Specialization of is_exactly_a<relational>(obj) for relational objects. */
 template<> inline bool is_exactly_a<relational>(const basic & obj)
 {