condition.h

来自「有计算机图形学、图像处理、dbms、sniffer、中游俄罗斯外挂、othell」· C头文件 代码 · 共 46 行

// Condition.h: interface for the CCondition class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_CONDITION_H__A0C6761F_A5CB_4CC2_BF1E_64C195EEAB61__INCLUDED_)
#define AFX_CONDITION_H__A0C6761F_A5CB_4CC2_BF1E_64C195EEAB61__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include "KEY.h"
#include "Time.h"
#include "Date.h"
#include "Record.h"
#include "Relationship.h"
class Record;
class Relationship;
class CCondition  
{
public:

	WORD AttrNo1;
	WORD AttrNo2;
	BYTE sflag:4,xflag:4;//1=;0!=;2==//若是==，则sflag=0,xflag=2//若是字符串，则xflag=1表示模糊，xflag=2表示精确
	KEY skey;
	KEY xkey;
	BYTE con:4,rels:4;//两个字段的比较方式；//牵涉到的关系数 
	CCondition *next;

public:
	CCondition(const CCondition &condition);
	CCondition & operator =(const CCondition &condition);
	BOOL Fit(Record *rcd);
	CCondition(Relationship *R1,Relationship *R2
		,CString  A1,CString A2,BOOL sf,BOOL xf,CString svalue,CString xvalue,BYTE con);
	CCondition();
	virtual ~CCondition();
private:
	bool Judge(int &sum,bool &fit,const int ival1,const int ival2);
	bool Judge(float &sum,bool &fit,const float fval1,const float fval2);

};

#endif // !defined(AFX_CONDITION_H__A0C6761F_A5CB_4CC2_BF1E_64C195EEAB61__INCLUDED_)