SeqAn3  3.1.0
The Modern C++ library for sequence analysis.
adaptor_from_functor.hpp
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1 // -----------------------------------------------------------------------------------------------------
2 // Copyright (c) 2006-2021, Knut Reinert & Freie Universität Berlin
3 // Copyright (c) 2016-2021, Knut Reinert & MPI für molekulare Genetik
4 // This file may be used, modified and/or redistributed under the terms of the 3-clause BSD-License
5 // shipped with this file and also available at: https://github.com/seqan/seqan3/blob/master/LICENSE.md
6 // -----------------------------------------------------------------------------------------------------
7 
13 #pragma once
14 
16 
17 namespace seqan3::detail
18 {
19 
20 // ============================================================================
21 // adaptor_from_functor
22 // ============================================================================
23 
54 template <typename functor_type, typename ...stored_args_ts>
55 class adaptor_from_functor :
56  public adaptor_base<adaptor_from_functor<functor_type, stored_args_ts...>, stored_args_ts...>
57 {
58 private:
60  using base_type = adaptor_base<adaptor_from_functor<functor_type, stored_args_ts...>, stored_args_ts...>;
61 
63  friend base_type;
64 
66  functor_type fun;
67 
75  template <std::ranges::input_range urng_t>
76  constexpr auto impl(urng_t && urange, stored_args_ts ... args) const
77  {
78  return fun(std::forward<urng_t>(urange), std::forward<stored_args_ts>(args)...);
79  }
80 
81 public:
85  constexpr adaptor_from_functor() = default;
86  constexpr adaptor_from_functor(adaptor_from_functor const &) noexcept = default;
87  constexpr adaptor_from_functor(adaptor_from_functor &&) noexcept = default;
88  constexpr adaptor_from_functor & operator=(adaptor_from_functor const &) noexcept = default;
89  constexpr adaptor_from_functor & operator=(adaptor_from_functor &&) noexcept = default;
90  ~adaptor_from_functor() noexcept = default;
91 
93  constexpr adaptor_from_functor(functor_type f, stored_args_ts ... args) :
94  base_type{std::forward<stored_args_ts>(args)...}, fun{std::move(f)}
95  {}
97 };
98 
99 } // namespace seqan3::detail
Provides seqan3::detail::adaptor_base and seqan3::detail::combined_adaptor.