* Interface to relations between expressions. */
/*
- * GiNaC Copyright (C) 1999-2000 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2001 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
#ifndef __GINAC_RELATIONAL_H__
#define __GINAC_RELATIONAL_H__
-#include <ginac/basic.h>
-#include <ginac/ex.h>
+#include "basic.h"
+#include "ex.h"
-#ifndef NO_GINAC_NAMESPACE
namespace GiNaC {
-#endif // ndef NO_GINAC_NAMESPACE
/** This class holds a relation consisting of two expressions and a logical
* relation between them. */
class relational : public basic
{
- GINAC_DECLARE_REGISTERED_CLASS(relational, basic)
+ GINAC_DECLARE_REGISTERED_CLASS(relational, basic)
// types
public:
- enum operators { equal,
- not_equal,
- less,
- less_or_equal,
- greater,
- greater_or_equal
- };
-
-// member functions
-
- // default constructor, destructor, copy constructor assignment operator and helpers
-public:
- relational();
- ~relational();
- relational(const relational & other);
- const relational & operator=(const relational & other);
-protected:
- void copy(const relational & other);
- void destroy(bool call_parent);
-
- // other constructors
+ enum operators {
+ equal,
+ not_equal,
+ less,
+ less_or_equal,
+ greater,
+ greater_or_equal
+ };
+
+ // other ctors
public:
- relational(const ex & lhs, const ex & rhs, operators oper=equal);
-
- // functions overriding virtual functions from bases classes
+ relational(const ex & lhs, const ex & rhs, operators oper=equal);
+
+ // functions overriding virtual functions from bases classes
public:
- basic * duplicate() const;
- void print(ostream & os, unsigned upper_precedence=0) const;
- void printraw(ostream & os) const;
- void printcsrc(ostream & os, unsigned type, unsigned upper_precedence=0) const;
- bool info(unsigned inf) const;
- unsigned nops() const;
- ex & let_op(int i);
- ex eval(int level=0) const;
- ex evalf(int level=0) const;
- ex simplify_ncmul(const exvector & v) const;
+ void print(std::ostream & os, unsigned upper_precedence=0) const;
+ void printraw(std::ostream & os) const;
+ void printcsrc(std::ostream & os, unsigned type, unsigned upper_precedence=0) const;
+ bool info(unsigned inf) const;
+ 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:
- int compare_same_type(const basic & other) const;
- unsigned return_type(void) const;
- unsigned return_type_tinfo(void) const;
+ unsigned return_type(void) const;
+ unsigned return_type_tinfo(void) const;
- // new virtual functions which can be overridden by derived classes
- // none
+ // new virtual functions which can be overridden by derived classes
+public:
+ virtual ex lhs(void) const;
+ virtual ex rhs(void) const;
- // non-virtual functions in this class
+ // non-virtual functions in this class
public:
- operator bool(void) const;
-
+ operator bool(void) const;
+
// member variables
-
+
protected:
- ex lh;
- ex rh;
- operators o;
- static unsigned precedence;
+ ex lh;
+ ex rh;
+ operators o;
+ static unsigned precedence;
};
-// global constants
-
-extern const relational some_relational;
-extern const type_info & typeid_relational;
-
// utility functions
inline const relational &ex_to_relational(const ex &e)
{
return static_cast<const relational &>(*e.bp);
}
-#ifndef NO_GINAC_NAMESPACE
} // namespace GiNaC
-#endif // ndef NO_GINAC_NAMESPACE
#endif // ndef __GINAC_RELATIONAL_H__