Hi, root [17] UInt_t nb=4294967280 root [18] nb=nb/2 (unsigned int)4294967288 Int_t(4294967280)==-16, Int_t(4294967288)==-8, so CInt does a nb = UInt_t( Int_t(nb) /2 )... Cheers, Axel. > -----Original Message----- > From: owner-roottalk@pcroot.cern.ch > [mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Patois Yannick > Sent: Saturday, February 24, 2001 11:38 AM > To: ROOT mailing list > Subject: [ROOT] CINT bug with large unsigned int ? > > > Hi, > > On my version of root (3.00.05, linux ix86, Mdk6.x) : > > root [38] UInt_t nb=-1; > root [39] cout <<nb<<endl; > 4294967295 > root [40] UInt_t nb2=nb/2; > root [41] cout <<nb2<<endl; > 0 > > It seems that some operations (here, a divisions) are not very well made > by CINT when the value is too large (over 2^31). > > I didnt found any related point in the CINT limitations page. > > Yannick > > >
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