Dereference.h

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// -*- C++ -*-

#if !defined(__ads_Dereference_h__)
#define __ads_Dereference_h__

#include "../defs.h"

#include <iterator>
#include <functional>

BEGIN_NAMESPACE_ADS

//-----------------------------------------------------------------------------
// @{


template<typename Handle, 
         typename Result = typename 
         std::iterator_traits<Handle>::reference>
struct Dereference : 
  public std::unary_function<Handle,Result> {
  Result
  operator()(Handle x) const { 
    return *x; 
  }
};


template<typename Handle>
inline
Dereference<Handle>
dereference() {
  return Dereference<Handle>();
}

// @}

END_NAMESPACE_ADS

#endif

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