iota_view.h

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// -----------------------------------------------------------------------------
//
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception OR LGPL-2.1-or-later
// Copyright (C) 2020 by the deal.II authors
//
// This file is part of the deal.II library.
//
// Detailed license information governing the source code and contributions
// can be found in LICENSE.md and CONTRIBUTING.md at the top level directory.
//
// -----------------------------------------------------------------------------
#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