SeqAn3 3.4.0
The Modern C++ library for sequence analysis.
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io/stream/concept.hpp
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1// SPDX-FileCopyrightText: 2006-2025 Knut Reinert & Freie Universität Berlin
2// SPDX-FileCopyrightText: 2016-2025 Knut Reinert & MPI für molekulare Genetik
3// SPDX-License-Identifier: BSD-3-Clause
4
9
10#pragma once
11
12#include <concepts>
13#include <iosfwd>
14#include <type_traits>
15
16#include <seqan3/core/platform.hpp>
17
18namespace seqan3
19{
29template <typename stream_type, typename value_type>
30concept output_stream_over =
31 std::is_base_of_v<std::ios_base, std::remove_reference_t<stream_type>>
32 && requires (stream_type & os, value_type & val) {
33 typename std::remove_reference_t<stream_type>::char_type;
34 typename std::remove_reference_t<stream_type>::traits_type;
35 typename std::remove_reference_t<stream_type>::int_type;
36 typename std::remove_reference_t<stream_type>::pos_type;
37 typename std::remove_reference_t<stream_type>::off_type;
38
39 {
40 os << val
41 } -> std::same_as<std::basic_ostream<typename std::remove_reference_t<stream_type>::char_type,
42 typename std::remove_reference_t<stream_type>::traits_type> &>;
43 };
44
45template <typename stream_type>
46concept output_stream = requires { typename std::remove_reference_t<stream_type>::char_type; }
47 && output_stream_over<stream_type, typename std::remove_reference_t<stream_type>::char_type>;
49
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98template <typename stream_type, typename value_type>
99concept input_stream_over =
100 std::is_base_of_v<std::ios_base, std::remove_reference_t<stream_type>>
101 && requires (stream_type & is, value_type & val) {
102 typename std::remove_reference_t<stream_type>::char_type;
103 typename std::remove_reference_t<stream_type>::traits_type;
104 typename std::remove_reference_t<stream_type>::int_type;
105 typename std::remove_reference_t<stream_type>::pos_type;
106 typename std::remove_reference_t<stream_type>::off_type;
107
108 {
109 is >> val
110 } -> std::same_as<std::basic_istream<typename std::remove_reference_t<stream_type>::char_type,
111 typename std::remove_reference_t<stream_type>::traits_type> &>;
112 };
113
114template <typename stream_type>
115concept input_stream = requires { typename std::remove_reference_t<stream_type>::char_type; }
116 && input_stream_over<stream_type, typename std::remove_reference_t<stream_type>::char_type>;
118
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157
158} // namespace seqan3
input_stream_over
Concept for input streams.
output_stream_over
Concept for output streams.
std::is_base_of_v
T is_base_of_v
seqan3
The main SeqAn3 namespace.
Definition aligned_sequence_concept.hpp:26
platform.hpp
Provides platform and dependency checks.
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