scope_exit.h

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// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2023 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Part of the source code is dual licensed under Apache-2.0 WITH
// LLVM-exception OR LGPL-2.1-or-later. Detailed license information
// governing the source code and code contributions can be found in
// LICENSE.md and CONTRIBUTING.md at the top level directory of deal.II.
//
// ------------------------------------------------------------------------
 
#ifndef dealii_scope_exit_h
#define dealii_scope_exit_h
 
#include <deal.II/base/config.h>
 
#include <functional>
 
 
DEAL_II_NAMESPACE_OPEN
 
class ScopeExit
{
public:
  explicit ScopeExit(const std::function<void()> &exit_function);
 
  ScopeExit(const ScopeExit &) = delete;
 
  ~ScopeExit();
 
  ScopeExit &
  operator=(const ScopeExit &) = delete;
 
private:
  const std::function<void()> exit_function;
};
 
 
 
inline ScopeExit::ScopeExit(const std::function<void()> &exit_function)
  : exit_function(exit_function)
{}
 
 
 
inline ScopeExit::~ScopeExit()
{
  // Actually trigger the stored function
  exit_function();
}
 
 
DEAL_II_NAMESPACE_CLOSE
 
#endif