helper.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2022, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2022, Knut Reinert & MPI für molekulare Genetik
// This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
// shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
 
#pragma once
 
#include <ranges>
 
#include <seqan3/core/platform.hpp>
 
namespace seqan3::detail::view_helper
{
 
template <class range_t>
concept simple_view = std::ranges::view<range_t> && std::ranges::range<range_t const>
                   && std::same_as<std::ranges::iterator_t<range_t>, std::ranges::iterator_t<range_t const>>
                   && std::same_as<std::ranges::sentinel_t<range_t>, std::ranges::sentinel_t<range_t const>>;
 
template <bool is_const, typename t>
using maybe_const = std::conditional_t<is_const, t const, t>;
 
} // namespace seqan3::detail::view_helper