// ----------------------------------------------------------------------
//
// HepHistCombiner.cc - implementation of class HepHistCombiner
//
// Intended to give the user access to the histogram (1D, 2D and Prof)
// objects being combined by HepFileManager::combine. The strategy is that
// this is implemented as a base class with nearly do-nothing, virtual
// member functions.  The user should write a descendent class which
// overrides these member functions with whatever form of combination
// may be appropriate for his/her application.  The test that the two
// histograms are compatible is implemented in the base class functions
// and may be called explicitely by the user. It is *not* called implicitely
// if these functions are overridden. Note that incompatible histogram
// objects ZMthrow warning level (i. e., non-fatal) ZMexceptions.
//
//    1-Mar-2001  J. Marraffino   Initial definition
//
// ----------------------------------------------------------------------


#include "HepTuple/HepHistCombiner.h"

ZM_BEGIN_NAMESPACE( zmht )	/*  namespace zmht  {  */

void HepHistCombiner::combine( HepHist1D & target,   const HepHist1D & source )
{ }

void HepHistCombiner::combine( HepHist2D & target,   const HepHist2D & source )
{ }

void HepHistCombiner::combine( HepHistProf & target, const HepHistProf & source )
{ }

ZM_END_NAMESPACE( zmht )	/*  }  // namespace zmht  */