uint.hpp

Go to the documentation of this file.

// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2006-2019, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2019, 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 <limits>

#include <seqan3/core/detail/int_types.hpp>
#include <seqan3/std/concepts>

namespace seqan3::detail
{

template <typename type, typename type2 = std::remove_reference_t<type>>
constexpr bool is_uint_adaptation_v = std::Same<type2, uint8_t>  ||
                                      std::Same<type2, uint16_t> ||
                                      std::Same<type2, uint32_t>;
} // namespace seqan3::detail

namespace seqan3::custom
{

template <typename uint_type>
    requires ::seqan3::detail::is_uint_adaptation_v<uint_type>
constexpr auto alphabet_size(uint_type const & SEQAN3_DOXYGEN_ONLY(intgr)) noexcept
{
    return detail::min_viable_uint_t<detail::size_in_values_v<uint_type>>{detail::size_in_values_v<uint_type>};
}

template <typename uint_type>
    requires detail::is_uint_adaptation_v<uint_type>
constexpr auto to_char(uint_type const intgr) noexcept
{
    if constexpr (std::Same<uint_type, uint8_t>)
        return static_cast<char>(intgr);
    else if constexpr (std::Same<uint_type, uint16_t>)
        return static_cast<char16_t>(intgr);
    else
        return static_cast<char32_t>(intgr);
}

template <typename uint_type>
    requires detail::is_uint_adaptation_v<uint_type>
constexpr uint_type to_rank(uint_type const intgr) noexcept
{
    return intgr;
}

template <typename uint_type>
    requires detail::is_uint_adaptation_v<uint_type>
constexpr uint_type & assign_char_to(decltype(to_char(uint_type{})) const chr, uint_type & intgr) noexcept
{
    return intgr = chr;
}

template <typename uint_type>
    requires detail::is_uint_adaptation_v<uint_type>
constexpr uint_type & assign_rank_to(uint_type const intgr2, uint_type & intgr) noexcept
{
    return intgr = intgr2;
}

} // namespace seqan3::custom