gapped.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2022 deCODE Genetics
// Copyright (c) 2006-2020, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2020, 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/biocpp/biocpp-core/blob/main/LICENSE.md
// -----------------------------------------------------------------------------------------------------
 
#pragma once
 
#include <bio/alphabet/composite/variant.hpp>
#include <bio/alphabet/gap/gap.hpp>
 
namespace bio::alphabet
{
 
template <typename alphabet_t>
    requires writable_alphabet<alphabet_t>
using gapped = variant<alphabet_t, gap>;
 
} // namespace bio::alphabet
 
namespace bio::alphabet::detail
{
// ---------------------------------------------------------------------------------------------------------------------
// is_gapped_alphabet constexpr variable
// ---------------------------------------------------------------------------------------------------------------------
 
template <typename t>
constexpr bool is_gapped_alphabet = false;
 
template <typename t>
constexpr bool is_gapped_alphabet<gapped<t>> = true;
 
} // namespace bio::alphabet::detail