observer_pointer.h

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//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// Copyright (C) 2025 - 2026 by the ryujin authors
//
 
#pragma once
 
#include <deal.II/base/config.h>
 
#if DEAL_II_VERSION_GTE(9, 7, 0)
#include <deal.II/base/enable_observer_pointer.h>
#include <deal.II/base/observer_pointer.h>
 
#else
 
#include <deal.II/base/smartpointer.h>
#include <deal.II/base/subscriptor.h>
 
DEAL_II_NAMESPACE_OPEN
 
template <typename T, typename P = void>
using ObserverPointer = SmartPointer<T, P>;
 
using EnableObserverPointer = Subscriptor;
DEAL_II_NAMESPACE_CLOSE
 
#endif