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// Function.h : main header file for the FUNCTION application 
// 
 
 
 
#if !defined(AFX_FUNCTION_H__893B59C6_B160_11D1_8170_00002145DF91__INCLUDED_) 
#define AFX_FUNCTION_H__893B59C6_B160_11D1_8170_00002145DF91__INCLUDED_ 
 
#if _MSC_VER >= 1000 
#pragma once 
#endif // _MSC_VER >= 1000 
 
#ifndef __AFXWIN_H__ 
	#error include 'stdafx.h' before including this file for PCH 
#endif 
 
 
 
///////////////////////////////////////////////////////////////////////////// 
// Definirea tipului arbore 
 
 
 
 
///////////////////////////////////////////////////////////////////////////// 
// Functie care elibereaza memoria ocupata de arbore 
 
 
///////////////////////////////////////////////////////////////////////////// 
// Definire Tipuri de date  
 
 
#include "afxtempl.h" 
#include "value.h" 
 
 
// Tree evaluation variables 
 
#define DIVISION_BY_0 1 
#define ILEGAL_OPERATION 2 
#define UNDEFINED_VARIABLE 3 
#define INVALID_DOMAIN 4 
 
typedef CTypedPtrMap CMapVariabile; 
 
 
///////////////////////////////////////////////////////////////////////////// 
 
 
class CExpression: public CObject   
{ 
 
public: 
	DECLARE_SERIAL(CExpression); 
	 
	 
	CExpression &operator=(CExpression& expr); 
	void AtachVariables(CMapVariabile *vars); 
	CExpression(CExpression & expresie); 
	 
	struct nod  
	{ 
		struct nod *left,*right; 
		unsigned char operatie;  
		union { double valoare; 
		CString *valoarestr;}; 
	} ; 
	 
	typedef nod NOD; 
	typedef nod *arbore; 
	 
	arbore CloneTree(void); 
	int UpdateArbore(void);		// Update the tree 
	arbore GetArbore(); 
	int Value(double & valoare);	// gets the value of the expression 
	int ChangeExpression(CString& expresie);	// Change expression 
	virtual void Serialize(CArchive& ar);		// The serialization function 
	 
	CExpression(); 
	CExpression(CMapVariabile * vars); 
	virtual ~CExpression(); 
 
private: 
	arbore sgOp(); 
	arbore logicalOp(); 
	void SkipSpaces(); 
	CMapVariabile * m_pvariabile;	// pointer to value table 
	CString m_definitie;			// the expression in string 
	int pozitie;					// string parsing variable 
	arbore m_Arbore;				// the expresion as a binary tree 
	 
	double vexp ( arbore a ); 
	arbore factor (void);			// the partial expresion parsing functions 
	arbore identificator(void); 
	arbore putere(void); 
	arbore termen(void); 
	arbore expresie(void); 
	void elibmem ( arbore a); 
	arbore clone(arbore arb); 
}; 
 
//{{AFX_INSERT_LOCATION}} 
// Microsoft Developer Studio will insert additional declarations immediately before the previous line. 
 
#endif // !defined(AFX_FUNCTION_H__893B59C6_B160_11D1_8170_00002145DF91__INCLUDED_)