CMSSW_4_4_3_patch1/src/DataFormats/Provenance/interface/Transient.h

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#ifndef DataFormats_Provenance_Transient_h
#define DataFormats_Provenance_Transient_h
// -*- C++ -*-
//
// Package:     Provenance
// Class  :     Transient
// 
//
// Original Author:  Bill Tanenbaum
//         Created:  Sat Aug 18 17:30:08 EDT 2007
//

// system include files

// user include files

// forward declarations
namespace edm {

template <typename T>
class Transient {
public:
  typedef T value_type;
  Transient() : value_(T()) {}
  explicit Transient(T const& value) : value_(value) {}
  operator T() const { return value_; }
  Transient & operator=(T const& rh) { value_ = rh; return *this; }
  T const& get() const { return value_;}
  T & get() { return value_;}
private:
  T value_;
};
}
#endif