cdate.h

很好用的数据库连接组件

/*
tick : 用time()返回的秒数（从1970年到现在的秒数）
mytime: GPS时间，距离当天0点的0.1ms数
时间格式：  例如："%02d%02d%02d  %02d:%02d:%02d.%d"
                其中整数内容从年、月、日、时、分、秒、毫秒排列
             可以设置成"%02d%02d%02d  %02d:%02d:%02d" 这样就没有ms
举例如下：
#include "CDate.h"
#include <iostream>
using namespace std;
int main()
{
        CDate_T t( time(0) );
        cout<<t.getDateTime()<<endl;
        int hour ;
        t.getDetail(0 , 0 , 0 ,  &hour ) ;
        cout<<"hour is "<<hour<<endl;
        cout<<"hour is "<<t.hour()<<endl;
        CDate_T lastDay0 = CDate_T( t.getDayStart() - 3600*24 );
        cout<<t.secTimeLen( lastDay0)
           <<" sec from the begining of last day "<< endl; //现在距离昨天凌晨多少秒
        t = CDate_T("020306 00:04:04.0");
        cout<<t.getDateTime()<<endl;
        t = t + 3600 ;
        cout<<t.getDateTime()<<endl;
        t = CDate_T( t.getTime() , 10*60*10000 ) ;  //从1：04调整到0:10
        cout<<t.getDateTime()<<endl;
}
*/
#ifndef CDATE_H
#define CDATE_H
#include  <time.h>
#include  <string>
#include <assert.h>
using std::string;

class CDate_T
{
	int tick;			// seconds geting from time() functions 
	int mytime;			// number of 0.1ms from the begining of the days .
public:
	static int calmytime (int t);		// calc mytime , t is ticks    
	static int calDayStart (int t);		// calc ticks of the the begining of day 
public:
	CDate_T ();
	CDate_T (const CDate_T & o);
	CDate_T (int t);		//  t is ticks 
	CDate_T (int t, int z_time);	// t is ticks , z_time is mytime
	CDate_T (int year, int mon, int day, int z_time = 0);
	CDate_T (const string & s, const string & format = "");

	void setDateTimeFormat (const string & format);

	int getDayStart() const ;
	int getTime () const;		// get ticks
	int getMyTime () const;		// get mytime
	string getDate (const string & format = "%02d%02d%02d") const;	// output the string of date according format
	/*   output the string of datetime according format */
	string getDateTime (const string & format = "") const;
	/*  get the detail the time infomation */
	int getDetail (int *year = 0, int *mon = 0, int *day = 0, int *hour =
				0, int *min = 0, int *sec = 0, int *ms = 0);
	int year ();
	int mon ();
	int day ();
	int hour ();
	int minute ();
	int second ();
	int ms ();


	int addSeconds (int t);		// add seconds . mytime will be change correspondly
	int addMyTime (int t);		// add mytime  , ticks will be change correspondly

	int secTimeLen (const CDate_T & t) const;	// seconds away from t . *this - t 
	int msTimeLen (const CDate_T & t) const;	// ms away from t , *this - t 

	CDate_T operator+ (int miao);
	CDate_T operator- (int miao);

	bool operator== (const CDate_T & o) const;	// comare between datetime .
	bool operator!= (const CDate_T & o) const;
	bool operator>= (const CDate_T & o) const;
	bool operator<= (const CDate_T & o) const;
	bool operator> (const CDate_T & o) const;
	bool operator< (const CDate_T & o) const;
private:
	int comp (const CDate_T & t) const;
	static string dateTimeFormat;

};
#endif