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Reference Guide
TDatime.h
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1 // @(#)root/base:$Id$
2 // Author: Rene Brun 05/01/95
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 #ifndef ROOT_TDatime
13 #define ROOT_TDatime
14 
15 #include <string>
16 
17 //////////////////////////////////////////////////////////////////////////
18 // //
19 // TDatime //
20 // //
21 // This class stores the date and time with a precision of one second //
22 // in an unsigned 32 bit word (e.g. 950130 124559). The date is stored //
23 // with the origin being the 1st january 1995. //
24 // //
25 // This class has no support for time zones. The time is assumed //
26 // to be in the local time of the machine where the object was created. //
27 // As a result, TDatime objects are not portable between machines //
28 // operating in different time zones and unsuitable for storing the //
29 // date/time of data taking events and the like. If absolute time is //
30 // required, use TTimeStamp. //
31 // //
32 //////////////////////////////////////////////////////////////////////////
33 
34 #include "Rtypes.h"
35 
36 
37 class TDatime {
38 
39 private:
40 
41 protected:
42  UInt_t fDatime; //Date (relative to 1995) + time
43 
44 public:
45  TDatime();
46  TDatime(const TDatime &d): fDatime(d.fDatime) { }
47  TDatime(UInt_t tloc, Bool_t dosDate = kFALSE): fDatime(0)
48  { Set(tloc, dosDate); }
49  TDatime(Int_t date, Int_t time);
50  TDatime(Int_t year, Int_t month, Int_t day,
51  Int_t hour, Int_t min, Int_t sec);
52  TDatime(const char *sqlDateTime);
53  virtual ~TDatime() { }
54 
55  TDatime& operator=(const TDatime &d);
56 
57  const char *AsString() const;
58  const char *AsString(char *out) const;
59  const char *AsSQLString() const;
60  UInt_t Convert(Bool_t toGMT = kFALSE) const;
61  void Copy(TDatime &datime) const;
62  UInt_t Get() const;
63  Int_t GetDate() const;
64  Int_t GetTime() const;
65  Int_t GetYear() const { return (fDatime>>26) + 1995; }
66  Int_t GetMonth() const { return (fDatime<<6)>>28; }
67  Int_t GetDay() const { return (fDatime<<10)>>27; }
68  Int_t GetDayOfWeek() const;
69  Int_t GetHour() const { return (fDatime<<15)>>27; }
70  Int_t GetMinute() const { return (fDatime<<20)>>26; }
71  Int_t GetSecond() const { return (fDatime<<26)>>26; }
72  void FillBuffer(char *&buffer);
73  void Print(Option_t *option="") const;
74  void ReadBuffer(char *&buffer);
75  void Set();
76  void Set(UInt_t tloc, Bool_t dosDate = kFALSE);
77  void Set(Int_t date, Int_t time);
78  void Set(Int_t year, Int_t month, Int_t day,
79  Int_t hour, Int_t min, Int_t sec);
80  void Set(const char *sqlDateTime);
81  Int_t Sizeof() const {return sizeof(UInt_t);}
82 
83  friend Bool_t operator==(const TDatime &d1, const TDatime &d2);
84  friend Bool_t operator!=(const TDatime &d1, const TDatime &d2);
85  friend Bool_t operator< (const TDatime &d1, const TDatime &d2);
86  friend Bool_t operator<=(const TDatime &d1, const TDatime &d2);
87  friend Bool_t operator> (const TDatime &d1, const TDatime &d2);
88  friend Bool_t operator>=(const TDatime &d1, const TDatime &d2);
89 
90  static void GetDateTime(UInt_t datetime, Int_t &date, Int_t &time);
91  static Int_t GetGlobalDayFromDate(Int_t date);
92  static Int_t GetDateFromGlobalDay(Int_t day);
94 
95  ClassDef(TDatime,1) //Date and time 950130 124559
96 };
97 
98 
100  { fDatime = d.fDatime; return *this; }
101 
102 inline Bool_t operator==(const TDatime &d1, const TDatime &d2)
103  { return d1.fDatime == d2.fDatime; }
104 inline Bool_t operator!=(const TDatime &d1, const TDatime &d2)
105  { return d1.fDatime != d2.fDatime; }
106 inline Bool_t operator< (const TDatime &d1, const TDatime &d2)
107  { return d1.fDatime < d2.fDatime; }
108 inline Bool_t operator<=(const TDatime &d1, const TDatime &d2)
109  { return d1.fDatime <= d2.fDatime; }
110 inline Bool_t operator> (const TDatime &d1, const TDatime &d2)
111  { return d1.fDatime > d2.fDatime; }
112 inline Bool_t operator>=(const TDatime &d1, const TDatime &d2)
113  { return d1.fDatime >= d2.fDatime; }
114 
115 namespace cling {
116  std::string printValue(const TDatime* val);
117 }
118 #endif
Bool_t operator<(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:106
TDatime()
Create a TDatime and set it to the current time.
Definition: TDatime.cxx:49
void Set()
Set Date/Time to current time as reported by the system.
Definition: TDatime.cxx:288
friend Bool_t operator>(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:110
const char Option_t
Definition: RtypesCore.h:62
friend Bool_t operator<=(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:108
friend Bool_t operator<(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:106
int Int_t
Definition: RtypesCore.h:41
bool Bool_t
Definition: RtypesCore.h:59
TDatime(const TDatime &d)
Definition: TDatime.h:46
void ReadBuffer(char *&buffer)
Decode Date/Time from output buffer, used by I/O system.
Definition: TDatime.cxx:277
static Int_t GetLegalGlobalDayFromDate(Int_t date)
Static function that returns the global day number from date.
Definition: TDatime.cxx:495
Int_t GetDate() const
Return date in form of 19971224 (i.e. 24/12/1997)
Definition: TDatime.cxx:247
Int_t GetDay() const
Definition: TDatime.h:67
static Int_t GetDateFromGlobalDay(Int_t day)
Static function that returns the date from the global day number.
Definition: TDatime.cxx:469
friend Bool_t operator>=(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:112
#define ClassDef(name, id)
Definition: Rtypes.h:326
void Copy(TDatime &datime) const
Copy this to datime.
Definition: TDatime.cxx:220
Int_t GetMonth() const
Definition: TDatime.h:66
static void GetDateTime(UInt_t datetime, Int_t &date, Int_t &time)
Static function that returns the date and time.
Definition: TDatime.cxx:434
void FillBuffer(char *&buffer)
Encode Date/Time into buffer, used by I/O system.
Definition: TDatime.cxx:228
Bool_t operator!=(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:104
Int_t GetSecond() const
Definition: TDatime.h:71
Int_t GetMinute() const
Definition: TDatime.h:70
virtual ~TDatime()
Definition: TDatime.h:53
Bool_t operator>(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:110
static Int_t GetGlobalDayFromDate(Int_t date)
Static function that returns the global day number from date.
Definition: TDatime.cxx:452
Int_t GetHour() const
Definition: TDatime.h:69
UInt_t Get() const
Return raw date/time as encoded by TDatime.
Definition: TDatime.cxx:239
const char * AsSQLString() const
Return the date & time in SQL compatible string format, like: 1997-01-15 20:16:28.
Definition: TDatime.cxx:151
unsigned int UInt_t
Definition: RtypesCore.h:42
void Print(Option_t *option="") const
Print date and time.
Definition: TDatime.cxx:269
TDatime(UInt_t tloc, Bool_t dosDate=kFALSE)
Definition: TDatime.h:47
Int_t GetTime() const
Return time in form of 123623 (i.e. 12:36:23)
Definition: TDatime.cxx:258
const Bool_t kFALSE
Definition: RtypesCore.h:88
#define d(i)
Definition: RSha256.hxx:102
friend Bool_t operator==(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:102
Print a TSeq at the prompt:
Definition: TDatime.h:115
Int_t GetDayOfWeek() const
Returns day of week, with Monday being day 1 and Sunday day 7.
Definition: TDatime.cxx:85
const char * AsString() const
Return the date & time as a string (ctime() format).
Definition: TDatime.cxx:101
UInt_t Convert(Bool_t toGMT=kFALSE) const
Convert fDatime from TDatime format to the standard time_t format.
Definition: TDatime.cxx:181
TDatime & operator=(const TDatime &d)
Definition: TDatime.h:99
Bool_t operator==(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:102
friend Bool_t operator!=(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:104
Int_t GetYear() const
Definition: TDatime.h:65
Int_t Sizeof() const
Definition: TDatime.h:81
UInt_t fDatime
Definition: TDatime.h:42
This class stores the date and time with a precision of one second in an unsigned 32 bit word (950130...
Definition: TDatime.h:37
Bool_t operator>=(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:112
Bool_t operator<=(const TDatime &d1, const TDatime &d2)
Definition: TDatime.h:108