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comparison mupdf-source/thirdparty/tesseract/src/ccutil/list.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 /**********************************************************************
2 ** Licensed under the Apache License, Version 2.0 (the "License");
3 ** you may not use this file except in compliance with the License.
4 ** You may obtain a copy of the License at
5 ** http://www.apache.org/licenses/LICENSE-2.0
6 ** Unless required by applicable law or agreed to in writing, software
7 ** distributed under the License is distributed on an "AS IS" BASIS,
8 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
9 ** See the License for the specific language governing permissions and
10 ** limitations under the License.
11 *
12 **********************************************************************/
13
14 #ifndef LIST_ITERATOR_H
15 #define LIST_ITERATOR_H
16
17 #include <stdint.h>
18
19 namespace tesseract {
20
21 template <typename ITERATOR, typename CLASSNAME>
22 class X_ITER : public ITERATOR {
23 public:
24 X_ITER() = default;
25 template <typename U>
26 X_ITER(U *list) : ITERATOR(list) {}
27
28 CLASSNAME *data() {
29 return static_cast<CLASSNAME *>(ITERATOR::data());
30 }
31 CLASSNAME *data_relative(int8_t offset) {
32 return static_cast<CLASSNAME *>(ITERATOR::data_relative(offset));
33 }
34 CLASSNAME *forward() {
35 return static_cast<CLASSNAME *>(ITERATOR::forward());
36 }
37 CLASSNAME *extract() {
38 return static_cast<CLASSNAME *>(ITERATOR::extract());
39 }
40 };
41
42 template <typename CONTAINER, typename ITERATOR, typename CLASSNAME>
43 class X_LIST : public CONTAINER {
44 public:
45 X_LIST() = default;
46 X_LIST(const X_LIST &) = delete;
47 X_LIST &operator=(const X_LIST &) = delete;
48 ~X_LIST() {
49 clear();
50 }
51
52 /* delete elements */
53 void clear() {
54 CONTAINER::internal_clear([](void *link) {delete reinterpret_cast<CLASSNAME *>(link);});
55 }
56
57 /* Become a deep copy of src_list */
58 template <typename U>
59 void deep_copy(const U *src_list, CLASSNAME *(*copier)(const CLASSNAME *)) {
60 X_ITER<ITERATOR, CLASSNAME> from_it(const_cast<U *>(src_list));
61 X_ITER<ITERATOR, CLASSNAME> to_it(this);
62
63 for (from_it.mark_cycle_pt(); !from_it.cycled_list(); from_it.forward())
64 to_it.add_after_then_move((*copier)(from_it.data()));
65 }
66 };
67
68 } // namespace tesseract
69
70 #endif