common/utility.hh

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// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
 
#ifndef DUNE_PDELAB_COMMON_UTILITY_HH
#define DUNE_PDELAB_COMMON_UTILITY_HH
 
#include <memory>
 
namespace Dune {
  namespace PDELab {
 
 
 
    template<typename T>
    std::shared_ptr<T> ensure_shared_ptr(T & t)
    {
      return std::shared_ptr<T>(&t, null_deleter<T>());
    }
 
#ifndef DOXYGEN
 
    template<typename T>
    std::shared_ptr<T> ensure_shared_ptr(T * t)
    {
      return std::shared_ptr<T>(t, null_deleter<T>());
    }
 
    template<typename T>
    std::shared_ptr<T> & ensure_shared_ptr(std::shared_ptr<T> & t)
    {
      return t;
    }
 
#endif // DOXYGEN
 
 
  } // namespace PDELab
} //namespace Dune
 
#endif // DUNE_PDELAB_COMMON_UTILITY_HH