Re: [ROOT] Problem with code including TMatrixRow

From: Perfetto Francesco (Francesco.Perfetto@na.infn.it)
Date: Tue Dec 17 2002 - 18:50:05 MET


Hi Rene,

Thanks for help,
after the investigation of Masa, can you inform me on the development ?

Ciao, Francesco.

On Tue, 17 Dec 2002, Rene Brun wrote:

> Hi Francesco,
>
> This seems to be a CINT optimisation problem. Masa will investigate.
> If you run with optimisation off (.O0) results will be OK.
>
> Rene Brun
>
> On Tue, 17 Dec 2002, Perfetto Francesco wrote:
>
> > Hi All,
> >
> > I have a problem with following code:
> >
> > {
> > #include "TMatrix.h"
> > #include "TVector.h"
> >
> >
> > TMatrix combi(15,6);
> > TVector indice(6);
> >
> > Int_t ii=1;
> > for (Int_t jj=2; jj<7; jj++)
> >   {
> >     Int_t kk=2;
> >     Int_t ll=2;
> >     Int_t mm=2;
> >     Int_t nn=2;
> >     Int_t pippo=1;
> >
> >     if( (kk) != (jj) )  //<<<------- this is the problem
> >       {
> > 	indice(0)=ii;
> > 	indice(1)=jj;
> > 	indice(2)=kk;
> > 	indice(3)=ll;
> > 	indice(4)=mm;
> > 	indice(5)=nn;
> >
> > 	indice.Print();
> >
> > 	TMatrixRow(combi,0)=indice;  // this is line 29
> >
> > 	combi.Print();
> > 	pippo = 0;
> >       }
> >     else
> >       kk=kk+1;
> >
> >   }
> >
> > }
> >
> > If kk is greater than the starting jj (i.e. 2 in the example), the program
> > runs. If I set kk=2 the program won't run. The output is the following:
> >
> > Error: improper lvalue FILE:prova3.C LINE:29
> > *** Interpreter error recovered ***
> >
> > It seems that if the conditions is satisfied at least once then everything
> > is fine. If it's false on the first loop iteration the program exit.
> >
> > Thank for your help
> >   Francesco
> >
> >
>
>



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