Valery Fine wrote: > > Dear ROOT team, > > Will the class TDatime (been saved) work in 1.5 years: > > void TDatime::Set(Int_t date, Int_t time) > { > // Set date and time. Data must be in format 980418 and time in, either > // 2246 (min precision) or 224512 (second precision). The date must > // be >= 950101. > > if (date < 950101) { > Error("TDatime::Set", "year smaller than 1995"); > return; > } > The class TDatime stores the year in 5 bits. Our reference year is 1995 and this will be valid until 1995+32. I assume that the convention for the year 2000 and above will be to specify 2000, 2001 and not 0 ,1. I have implemented a protection in TDatime::Set for years >= 2000, but the dates stored in Root files will still be valid. On Unix systems, there is a different problem. In principle, Unix dates are valid until 2005 only. This has nothing to do with the internal storage in Root. Rene Brun
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