Hi Ed, If you define a global variable with CINT (eg float R2), this variable must be visible in any interpreted function. My guess is that you are calling "gROOT->Reset()" somewhere in your selector. A CINT global variable cannot be seen from the compiled code if it is not declared to CINT as well (like we do for globals like gFile, gDirectory,etc). Rene Brun On Tue, 20 Aug 2002, Edward Chen wrote: > Hi - I have a global variable which shows up when I do .g: > > > 11 0x8733bf0 Float_t R2=0 > > > I want to access the value of R2 in TSelector::ProcessCut(). Is that > possible? I'm getting the following error message: > > > /data1/babar/edward/root/temp.C:67: `R2' undeclared (first use this > function) > > Thanks. (I'm using ROOT 3.03/06) > > -Ed >
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