type_list.hpp

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// -----------------------------------------------------------------------------------------------------
// Copyright (c) 2022 deCODE Genetics
// Copyright (c) 2006-2021, Knut Reinert & Freie Universität Berlin
// Copyright (c) 2016-2021, 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/meta/type_traits/template_inspection.hpp>
 
namespace bio::meta
{
 
// ----------------------------------------------------------------------------
// type_list class
// ----------------------------------------------------------------------------
 
template <typename... types>
struct type_list
{
    using type = type_list;
 
    static constexpr size_t size() noexcept { return sizeof...(types); }
};
 
} // namespace bio::meta
 
// ----------------------------------------------------------------------------
// is_type_list trait
// ----------------------------------------------------------------------------
 
namespace bio::meta::detail
{
 
template <typename t>
inline constexpr bool is_type_list = false;
 
template <typename... ts>
inline constexpr bool is_type_list<type_list<ts...>> = true;
 
} // namespace bio::meta::detail