uint.hpp

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// SPDX-FileCopyrightText: 2006-2024 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2024 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: BSD-3-Clause
 
#pragma once
 
#include <seqan3/alphabet/concept.hpp>
#include <seqan3/utility/detail/integer_traits.hpp>
 
namespace seqan3::detail
{
template <typename type>
constexpr bool is_uint_adaptation_v =
    std::same_as<type, uint8_t> || std::same_as<type, uint16_t> || std::same_as<type, uint32_t>;
} // namespace seqan3::detail
 
namespace seqan3::custom
{
 
template <typename uint_type>
    requires seqan3::detail::is_uint_adaptation_v<uint_type>
struct alphabet<uint_type>
{
    static constexpr auto alphabet_size =
        detail::min_viable_uint_t<detail::size_in_values_v<uint_type>>{detail::size_in_values_v<uint_type>};
 
    static constexpr auto to_char(uint_type const uint_v) noexcept
    {
        if constexpr (std::same_as<uint_type, uint8_t>)
            return static_cast<char>(uint_v);
        else if constexpr (std::same_as<uint_type, uint16_t>)
            return static_cast<char16_t>(uint_v);
        else
            return static_cast<char32_t>(uint_v);
    }
 
    static constexpr uint_type to_rank(uint_type const uint_v) noexcept
    {
        return uint_v;
    }
 
    static constexpr uint_type & assign_char_to(decltype(to_char(uint_type{})) const chr, uint_type & uint_v) noexcept
    {
        return uint_v = chr;
    }
 
    static constexpr uint_type & assign_rank_to(uint_type const uint2_v, uint_type & uint_v) noexcept
    {
        return uint_v = uint2_v;
    }
};
 
} // namespace seqan3::custom