iterator.hh

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// SPDX-FileCopyrightText: Copyright © DUNE Project contributors, see file LICENSE.md in module root
// SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
// -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// vi: set et ts=4 sw=2 sts=2:
#ifndef DUNE_COMMON_STD_ITERATOR_HH
#define DUNE_COMMON_STD_ITERATOR_HH
 
#include <concepts>
#include <iterator>
 
namespace Dune::Std {

template <class In, class Out>
concept indirectly_copyable =
    std::indirectly_readable<In> &&
    std::indirectly_writable<Out, std::iter_reference_t<In>>;
 
} // end namespace Dune::Std
 
#endif // DUNE_COMMON_STD_ITERATOR_HH