Hi Ruben,
It took me sometime to investigate your problem.
You have far too many compilation errors when running with gcc3.2.
Anyhow, I found your problem. In your class, you have a data member;
Int_t* fPermIndx; //[fSize] Permutations index array for LU decomposition
in your constructor, you set fSize, but forget to create the array fPermIndx.
This array should have the length fSize.
Rene Brun
Ruben Shahoyan wrote:
>
> Hello,
> I have a class with custom streamer, which works fine for root 3.02 and
> lower but produces an error during the reading with all higher root
> versions:
>
> Error in <TBuffer::CheckByteCount>: object of class NaCovMatrix read too
> many bytes: 107 instead of 95
> Warning in <TBuffer::CheckByteCount>: NaCovMatrix::Streamer() not in sync
> with data on file, fix Streamer()
>
> The relevant parts of the class definition are
>
> typedef Float_t MElem_t; // Type of matrix elements
>
> class NaCovMatrix : public TObject {
> protected:
> Int_t fSize; // Size of the matrix
> Int_t fSize2; // Number of elements (size^2)
> MElem_t* fElements; //[fSize2] Elements
> MElem_t** fIndex; //! Pointers on rows
>
> };
>
> The streamer looks like:
>
> void NaCovMatrix::Streamer(TBuffer &R__b)
> {
> // Stream an object of class NaMatrix.
> if (R__b.IsReading()) {
> NaCovMatrix::Class()->ReadBuffer(R__b, this);
> fIndex = new MElem_t*[fSize];
> MElem_t* pnt=&fElements[0];
> for (Int_t i=0;i<fSize;i++,pnt+=fSize) fIndex[i] = pnt;
> } else {
> NaCovMatrix::Class()->WriteBuffer(R__b, this);
> }
> }
>
> Does anybody have idea what could be the reason?
> I attach the small script testM compiling and running an example
> producing an error with root 3.03, 3,04 and 3.05 but working with 3.02
>
> Best regards,
> Ruben
>
> --------------------------------------------------------------------------------
> Name: testMat.tar.gz
> testMat.tar.gz Type: Unix Tape Archive (application/x-tar)
> Encoding: BASE64
This archive was generated by hypermail 2b29 : Thu Jan 01 2004 - 17:50:08 MET