adaptor_for_view_without_args.hpp

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// -----------------------------------------------------------------------------------------------------
// 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/seqan/seqan3/blob/master/LICENSE.md
// -----------------------------------------------------------------------------------------------------
 
#pragma once
 
#include <seqan3/core/range/detail/adaptor_base.hpp>
 
namespace seqan3::detail
{
 
// ============================================================================
//  adaptor_for_view_without_args
// ============================================================================
 
template <template <typename, typename ...> typename view_type>
class adaptor_for_view_without_args : public adaptor_base<adaptor_for_view_without_args<view_type>>
{
private:
    using base_type = adaptor_base<adaptor_for_view_without_args<view_type>>;
 
    friend base_type;
 
    template <typename ...arg_types>
    static auto impl(arg_types && ... args)
    {
        return view_type{std::forward<arg_types>(args)...};
    }
 
public:
    constexpr adaptor_for_view_without_args()                                                           = default;
    constexpr adaptor_for_view_without_args(adaptor_for_view_without_args const &)             noexcept = default;
    constexpr adaptor_for_view_without_args(adaptor_for_view_without_args &&)                  noexcept = default;
    constexpr adaptor_for_view_without_args & operator=(adaptor_for_view_without_args const &) noexcept = default;
    constexpr adaptor_for_view_without_args & operator=(adaptor_for_view_without_args &&)      noexcept = default;
    ~adaptor_for_view_without_args()                                                           noexcept = default;
 
    using base_type::base_type;
};
 
} // namespace seqan3::detail