shared_ptr.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:
// SPDX-FileCopyrightInfo: Copyright (C) DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
 
#ifndef DUNE_SHARED_PTR_HH
#define DUNE_SHARED_PTR_HH
 
#include <memory>
 
#include <dune/common/typetraits.hh>
namespace Dune
{
  template<class T>
  struct null_deleter
  {
    void operator() (T*) const {}
  };
 
  template<typename T>
  inline std::shared_ptr<T> stackobject_to_shared_ptr(T & t)
  {
    return std::shared_ptr<T>(&t, null_deleter<T>());
  }
 
 
  template<class T>
  auto wrap_or_move(T&& t)
  {
    return std::make_shared<std::decay_t<T>>(std::forward<T>(t));
  }
 
  template<class T>
  auto wrap_or_move(T& t)
  {
    return stackobject_to_shared_ptr(t);
  }
 
}
#endif