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geant4/source/externals/g4tools/include/tools/wroot/date
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2022-12-09 14:43:28 +01:00

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// Copyright (C) 2010, Guy Barrand. All rights reserved.
// See the file tools.license for terms.
#ifndef tools_wroot_date
#define tools_wroot_date
//_MSC_VER (= Microsoft VisualC++) :
// localtime_r() does not exist on Windows and we can't use the
// Windows ::GetLocalTime() since G4 do not want to include windows.h.
// Then we stay with the not thread safe localtime().
#include <time.h>
namespace tools {
namespace wroot {
typedef unsigned int date;
inline date get_date(){
// Set Date/Time to current time as reported by the system.
// Date and Time are encoded into one single unsigned 32 bit word.
// Date is stored with the origin being the 1st january 1995.
// Time has 1 second precision.
time_t tloc = ::time(0);
#if defined(_MSC_VER) || defined(__MINGW32__)
struct tm *tp = (tm*)::localtime(&tloc); //not thread safe (but exist on Windows).
#else
struct tm tpa;
struct tm *tp = (tm*)::localtime_r(&tloc, &tpa); //does not exist on Windows.
#endif
unsigned int _year = tp->tm_year;
unsigned int _month = tp->tm_mon + 1;
unsigned int _day = tp->tm_mday;
unsigned int _hour = tp->tm_hour;
unsigned int _min = tp->tm_min;
unsigned int _sec = tp->tm_sec;
return ((_year-95)<<26 | _month<<22 | _day<<17 | _hour<<12 | _min<<6 | _sec);
}
}}
#endif