ZMuseCount.cc

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// ----------------------------------------------------------------------
//
//  ZMuseCount.cc - utility class for use in reference-counting
//
//
//  History:
//    19-Sep-1997  WEB  Design stolen, and code adapted, from pp 70-73 of
//      Koenig & Moo: "Ruminations on C++" (1996)
//
// ----------------------------------------------------------------------
 
 
#ifndef ZMUSECOUNT_H
  #include "CLHEP/RefCount/ZMuseCount.h"
  #include "CLHEP/RefCount/ZMuseCount.icc"
#endif
 
 
bool ZMuseCount::makeonly()  {
 
  bool result = ( ! only() );
 
  if ( result )  {
    --*p;
    p = new int(1);
  }
 
  return result;
 
}  // makeonly()
 
 
bool ZMuseCount::reattach( const ZMuseCount & u )  {
 
  ++*u.p;
 
  bool result = ( --*p == 0 );
  if ( result )
    delete p;
 
  p = u.p;
  return result;
 
}  // reattach()