/usr/include/root/TDatime.h is in libroot-core-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Rene Brun 05/01/95
/*************************************************************************
* Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TDatime
#define ROOT_TDatime
//////////////////////////////////////////////////////////////////////////
// //
// TDatime //
// //
// This class stores the date and time with a precision of one second //
// in an unsigned 32 bit word (e.g. 950130 124559). The date is stored //
// with the origin being the 1st january 1995. //
// //
// This class has no support for time zones. The time is assumed //
// to be in the local time of the machine where the object was created. //
// As a result, TDatime objects are not portable between machines //
// operating in different time zones and unsuitable for storing the //
// date/time of data taking events and the like. If absolute time is //
// required, use TTimeStamp. //
// //
//////////////////////////////////////////////////////////////////////////
#ifndef ROOT_Rtypes
#include "Rtypes.h"
#endif
class TDatime {
private:
protected:
UInt_t fDatime; //Date (relative to 1995) + time
public:
TDatime();
TDatime(const TDatime &d): fDatime(d.fDatime) { }
TDatime(UInt_t tloc, Bool_t dosDate = kFALSE): fDatime(0)
{ Set(tloc, dosDate); }
TDatime(Int_t date, Int_t time);
TDatime(Int_t year, Int_t month, Int_t day,
Int_t hour, Int_t min, Int_t sec);
TDatime(const char *sqlDateTime);
virtual ~TDatime() { }
TDatime& operator=(const TDatime &d);
const char *AsString() const;
const char *AsString(char *out) const;
const char *AsSQLString() const;
UInt_t Convert(Bool_t toGMT = kFALSE) const;
void Copy(TDatime &datime) const;
UInt_t Get() const;
Int_t GetDate() const;
Int_t GetTime() const;
Int_t GetYear() const { return (fDatime>>26) + 1995; }
Int_t GetMonth() const { return (fDatime<<6)>>28; }
Int_t GetDay() const { return (fDatime<<10)>>27; }
Int_t GetDayOfWeek() const;
Int_t GetHour() const { return (fDatime<<15)>>27; }
Int_t GetMinute() const { return (fDatime<<20)>>26; }
Int_t GetSecond() const { return (fDatime<<26)>>26; }
void FillBuffer(char *&buffer);
void Print(Option_t *option="") const;
void ReadBuffer(char *&buffer);
void Set();
void Set(UInt_t tloc, Bool_t dosDate = kFALSE);
void Set(Int_t date, Int_t time);
void Set(Int_t year, Int_t month, Int_t day,
Int_t hour, Int_t min, Int_t sec);
void Set(const char *sqlDateTime);
Int_t Sizeof() const {return sizeof(UInt_t);}
friend Bool_t operator==(const TDatime &d1, const TDatime &d2);
friend Bool_t operator!=(const TDatime &d1, const TDatime &d2);
friend Bool_t operator< (const TDatime &d1, const TDatime &d2);
friend Bool_t operator<=(const TDatime &d1, const TDatime &d2);
friend Bool_t operator> (const TDatime &d1, const TDatime &d2);
friend Bool_t operator>=(const TDatime &d1, const TDatime &d2);
static void GetDateTime(UInt_t datetime, Int_t &date, Int_t &time);
ClassDef(TDatime,1) //Date and time 950130 124559
};
inline TDatime& TDatime::operator=(const TDatime &d)
{ fDatime = d.fDatime; return *this; }
inline Bool_t operator==(const TDatime &d1, const TDatime &d2)
{ return d1.fDatime == d2.fDatime; }
inline Bool_t operator!=(const TDatime &d1, const TDatime &d2)
{ return d1.fDatime != d2.fDatime; }
inline Bool_t operator< (const TDatime &d1, const TDatime &d2)
{ return d1.fDatime < d2.fDatime; }
inline Bool_t operator<=(const TDatime &d1, const TDatime &d2)
{ return d1.fDatime <= d2.fDatime; }
inline Bool_t operator> (const TDatime &d1, const TDatime &d2)
{ return d1.fDatime > d2.fDatime; }
inline Bool_t operator>=(const TDatime &d1, const TDatime &d2)
{ return d1.fDatime >= d2.fDatime; }
#endif
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