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Tuples.h

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// $Id: Tuples.h,v 1.5 2006/03/09 10:28:15 hmd Exp $
// ============================================================================
#ifndef GAUDIALG_TUPLES_H 
#define GAUDIALG_TUPLES_H 1
// ============================================================================
// GaudiAlg 
// ============================================================================
#include "GaudiAlg/TupleObj.h"
// ============================================================================

namespace Tuples 
{
  class Tuple    ;
  class TupleObj ;
} // end of namespace Tuples 


namespace Tuples 
{
  template <class OBJECT,class ARGUMENT=double, class RESULT=double>
  class _TupAdapter : public std::unary_function<ARGUMENT,RESULT>
  {
  public:
    // constructor
    _TupAdapter ( OBJECT object ) : m_object ( object ) {} ;
  public:
    inline RESULT operator() ( ARGUMENT arg ) const 
    { return m_object( arg )  ; }
  private:
    // default constructor is disabled 
    _TupAdapter();
  private:
    OBJECT m_object ;
  };
  
  template <class OBJECT>
  inline _TupAdapter<OBJECT,double,double> useFun ( OBJECT object ) 
  { return _TupAdapter<OBJECT,double,double>( object ) ; }
  
} // end of namespace Tuples 

#endif // GAUDIALG_TUPLES_H

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