potential problem with generation of Class::Streamer function

Pasha Murat (murat@cdfsga.fnal.gov)
Sat, 25 Oct 1997 18:21:42 GMT

Enclosed below is an example of simple class representing a YBOS (YBOS=Zebra')
bank, which is derived from TObject and contains an array of integers of
fixed length. For some reason the Streamer method generated by rootcint
saves/restores only TObject and pretends to know nothing about the array
itself...

Is it the expected behaviour and one should write Streamer by hands in this case
or i'm just missing a way to tell rootcint about my object correctly?

Thanks a lot , Pasha

-------------------------------------------------- Lrid.hh
#ifndef __LRID_HH__
#define __LRID_HH__
#include "TObject.h"

class YBOS_BANK;

int const LRID_DATA_SIZE = 8;

class LRID: public TObject {
protected:
Int_t fWord[LRID_DATA_SIZE];
public:
LRID();
LRID(YBOS_BANK& bank);
virtual ~LRID();
Int_t Word(int i) { return fWord[i]; }
ClassDef(LRID,1)
};

#ifdef __CINT__
#pragma link C++ class LRID;
#endif
#endif //__LRID_HH__
-------------------------------------------------- LinkDef.h
#ifdef __CINT__
#pragma link off all globals;
#pragma link off all classes;
#pragma link off all functions;
#endif
-----------------------------------------------------------------------------

> rootcint -f lrid.cxx -c -I$ROOTSYS/include -I../include inc/LinkDef.h Lrid.hh
Warning: Link requested for undefined class YBOS_BANK FILE: LINE:0
Class YBOS_BANK: Streamer() not declared
Class YBOS_BANK: ShowMembers() not declared

********************** and here goes the output of rootcint (lrid.cxx)
//
// File generated by rootcint at Sat Oct 25 12:56:55 1997.
// Do NOT change. Changes will be lost next time file is generated
//

#include "TBuffer.h"
#include "TMemberInspector.h"
#include "TError.h"

//______________________________________________________________________________
TBuffer &operator>>(TBuffer &buf, LRID *&obj)
{
// Read a pointer to an object of class LRID.

obj = (LRID *) buf.ReadObject(LRID::Class());
return buf;
}

//______________________________________________________________________________
void LRID::Streamer(TBuffer &R__b)
{
// Stream an object of class LRID.

TObject::Streamer(R__b);
}

//______________________________________________________________________________
void LRID::ShowMembers(TMemberInspector &R__insp, char *R__parent)
{
// Inspect the data members of an object of class LRID.

TClass *R__cl = LRID::IsA();
Int_t R__ncp = strlen(R__parent);
R__insp.Inspect(R__cl, R__parent, "fWord[8]", fWord);
TObject::ShowMembers(R__insp, R__parent);
}