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1 | | /* |
2 | | * This file is part of PowerDNS or dnsdist. |
3 | | * Copyright -- PowerDNS.COM B.V. and its contributors |
4 | | * |
5 | | * This program is free software; you can redistribute it and/or modify |
6 | | * it under the terms of version 2 of the GNU General Public License as |
7 | | * published by the Free Software Foundation. |
8 | | * |
9 | | * In addition, for the avoidance of any doubt, permission is granted to |
10 | | * link this program with OpenSSL and to (re)distribute the binaries |
11 | | * produced as the result of such linking. |
12 | | * |
13 | | * This program is distributed in the hope that it will be useful, |
14 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | | * GNU General Public License for more details. |
17 | | * |
18 | | * You should have received a copy of the GNU General Public License |
19 | | * along with this program; if not, write to the Free Software |
20 | | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
21 | | */ |
22 | | #pragma once |
23 | | |
24 | | #include <string_view> |
25 | | |
26 | | namespace pdns::views |
27 | | { |
28 | | |
29 | | class UnsignedCharView |
30 | | { |
31 | | public: |
32 | | UnsignedCharView(const char* data_, size_t size_) : |
33 | 250k | view(data_, size_) |
34 | 250k | { |
35 | 250k | } |
36 | | // NOLINTBEGIN(cppcoreguidelines-pro-type-reinterpret-cast): No unsigned char view in C++17 |
37 | | UnsignedCharView(const unsigned char* data_, size_t size_) : |
38 | | view(reinterpret_cast<const char*>(data_), size_) |
39 | 0 | { |
40 | 0 | } |
41 | | using size_type = std::string_view::size_type; |
42 | | |
43 | | [[nodiscard]] const unsigned char& at(size_type pos) const |
44 | 665k | { |
45 | 665k | return reinterpret_cast<const unsigned char&>(view.at(pos)); |
46 | 665k | } |
47 | | |
48 | | [[nodiscard]] const unsigned char& operator[](size_type pos) const |
49 | 0 | { |
50 | 0 | return reinterpret_cast<const unsigned char&>(view[pos]); |
51 | 0 | } |
52 | | |
53 | | [[nodiscard]] const unsigned char* data() const |
54 | 0 | { |
55 | 0 | return reinterpret_cast<const unsigned char*>(view.data()); |
56 | 0 | } |
57 | | // NOLINTEND(cppcoreguidelines-pro-type-reinterpret-cast): No unsigned char view in C++17 |
58 | | |
59 | | [[nodiscard]] size_t size() const |
60 | 207k | { |
61 | 207k | return view.size(); |
62 | 207k | } |
63 | | |
64 | | [[nodiscard]] size_t length() const |
65 | 0 | { |
66 | 0 | return view.length(); |
67 | 0 | } |
68 | | |
69 | | private: |
70 | | std::string_view view; |
71 | | }; |
72 | | |
73 | | } |