iota_view.h

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// ------------------------------------------------------------------------
//
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2020 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_cxx20_iota_view_h
#define dealii_cxx20_iota_view_h
 
#include <deal.II/base/config.h>
 
#ifdef DEAL_II_HAVE_CXX20
#  include <ranges>
#else
#  include <boost/range/irange.hpp>
#endif
 
DEAL_II_NAMESPACE_OPEN
 
namespace std_cxx20
{
  namespace ranges
  {
#ifndef DEAL_II_HAVE_CXX20
    template <typename IncrementableType, typename /*BoundType*/>
    using iota_view = boost::integer_range<IncrementableType>;
#else
    using std::ranges::iota_view;
#endif
  } // namespace ranges
} // namespace std_cxx20
 
DEAL_II_NAMESPACE_CLOSE
 
#endif