ptime.h

PTypes (C++ Portable Types Library) is a simple alternative to the STL that includes multithreading

/*
 *
 *  C++ Portable Types Library (PTypes)
 *  Version 1.7.5   Released 9-Mar-2003
 *
 *  Copyright (c) 2001, 2002, 2003 Hovik Melikyan
 *
 *  http://www.melikyan.com/ptypes/
 *  http://ptypes.sourceforge.net/
 *
 */

#ifndef __PTIME_H__
#define __PTIME_H__

#ifndef __PPORT_H__
#include "pport.h"
#endif

#ifndef __PTYPES_H__
#include "ptypes.h"
#endif


#include <time.h>


PTYPES_BEGIN


typedef large datetime;             // datetime type: 64-bit, number of milliseconds since midnight 01/01/0001

const int msecsmax = 86400000;      // number of milliseconds in one day
const int daysmax = 3652059;        // number of days between 01/01/0001 and 12/31/9999
const datetime datetimemax = large(msecsmax) * daysmax;    // max. allowed number for datetime type
const datetime invdatetime = large(-1);


// datetime general utilities
inline int days(datetime d)            { return int(d / msecsmax); }
inline int msecs(datetime d)           { return int(d % msecsmax); }

ptpublic datetime mkdt(int days, int msecs);
ptpublic bool     isvalid(datetime);
ptpublic datetime now(bool utc = true);
ptpublic void     tzupdate();
ptpublic int      tzoffset();
ptpublic string   dttostring(datetime, const char* fmt);
ptpublic string   nowstring(const char* fmt, bool utc = true);
ptpublic datetime utodatetime(time_t u);

// date/calendar manipulation
ptpublic bool     isleapyear(int year);
ptpublic int      daysinmonth(int year, int month);
ptpublic int      daysinyear(int year, int month);
ptpublic int      dayofweek(datetime);
ptpublic bool     isdatevalid(int year, int month, int day);
ptpublic datetime encodedate(int year, int month, int day);
ptpublic bool     decodedate(datetime, int& year, int& month, int& day);

// time manipulation
ptpublic bool     istimevalid(int hour, int min, int sec, int msec = 0);
ptpublic datetime encodetime(int hour, int min, int sec, int msec = 0);
ptpublic bool     decodetime(datetime, int& hour, int& min, int& sec, int& msec);
ptpublic bool     decodetime(datetime, int& hour, int& min, int& sec);



PTYPES_END

#endif // __PTIME_H__