X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Frelational.h;h=40c799bf5ce580247a78949a6fd9bf6b557b51cc;hp=c3b223b5eb0f494f722ffc25f20a10ce72de5431;hb=0787561f69fc98c42e99ff502910a2da99f33690;hpb=e78622a06f749a124b007aa7b969de02fcc9c3d2

diff --git a/ginac/relational.h b/ginac/relational.h
index c3b223b5..40c799bf 100644
--- 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;}
@@ -57,10 +57,10 @@ public:
 	unsigned nops() const;
 	ex & let_op(int i);
 	ex eval(int level=0) const;
-	ex evalf(int level=0) const;
-	ex normal(lst &sym_lst, lst &repl_lst, int level=0) const;
 	ex simplify_ncmul(const exvector & v) const;
+
 protected:
+	bool match_same_type(const basic & other) const;
 	unsigned return_type(void) const;
 	unsigned return_type_tinfo(void) const;
 
@@ -82,11 +82,20 @@ 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)
+{
+	return obj.tinfo()==TINFO_relational;
+}
+
 } // namespace GiNaC
 
 #endif // ndef __GINAC_RELATIONAL_H__