HasOutput.h

//-*-C++-*-
/***************************************************************************
 *
 *   Copyright (C) 2009 by Willem van Straten
 *   Licensed under the Academic Free License version 2.1
 *
 ***************************************************************************/
 
// dspsr/Kernel/Classes/dsp/HasOutput.h
 
#ifndef __dsp_HasOutput_h
#define __dsp_HasOutput_h
 
#include "ReferenceTo.h"
 
namespace dsp
{
  template <class Out>
  class HasOutput
  {
  public:
 
    virtual ~HasOutput () {}
 
    virtual void set_output (Out* _output) { output = _output; }
 
    virtual Out* get_output () const { return output; }
 
    bool has_output() const { return output.ptr(); }
 
  protected:
 
    Reference::To<Out> output;
  };
}
 
#endif