Hi Avdhesh, Unfortunately you did not include in the email your classes data members. It might be a trivial question, but did you specify gr to be a vector? TGraphErrors *gr[nent]; Cheers, Silvio On Thu, 10 Oct 2002, Avdhesh Chandra wrote: > > Hi, > I am trying to make graph array, so i can use it. > > programe looks like(where i am defining graph array) > > for(int i = 0 ; i < nent ; i++) > { > cout << " Col[i] " << Col[i] << endl; > gr[i] = new TGraphErrors(n,Z,Ent[i],Ez,Eent[i]); > gr[i]->SetMarkerColor(Col[i]); > gr[i]->SetMarkerStyle(Sty[i]); > } > > when i am running my code i am getting following message > > --------------------------------------------------- > Col[i] 7 > Col[i] 6 > Error: Array index out of range gr -> [1] valid upto gr FILE:test.C > LINE:156 > > *** Break *** segmentation violation > --------------------------------------------------- > > > Which shows that when it goes secound time in the loop it having problem. > Please let me know what i am doing worng. > > Thanks for any help > Avdhesh >
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