Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/tesseract/src/ccutil/list.h @ 40:aa33339d6b8a upstream

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ADD: MuPDF v1.26.10: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.5.
author Franz Glasner <fzglas.hg@dom66.de>
date Sat, 11 Oct 2025 11:31:38 +0200
parents b50eed0cc0ef
children
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1 /**********************************************************************
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2 ** Licensed under the Apache License, Version 2.0 (the "License");
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3 ** you may not use this file except in compliance with the License.
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4 ** You may obtain a copy of the License at
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5 ** http://www.apache.org/licenses/LICENSE-2.0
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6 ** Unless required by applicable law or agreed to in writing, software
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7 ** distributed under the License is distributed on an "AS IS" BASIS,
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8 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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9 ** See the License for the specific language governing permissions and
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10 ** limitations under the License.
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11 *
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12 **********************************************************************/
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14 #ifndef LIST_ITERATOR_H
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15 #define LIST_ITERATOR_H
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17 #include <stdint.h>
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19 namespace tesseract {
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21 template <typename ITERATOR, typename CLASSNAME>
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22 class X_ITER : public ITERATOR {
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23 public:
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24 X_ITER() = default;
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25 template <typename U>
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26 X_ITER(U *list) : ITERATOR(list) {}
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28 CLASSNAME *data() {
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29 return static_cast<CLASSNAME *>(ITERATOR::data());
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30 }
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31 CLASSNAME *data_relative(int8_t offset) {
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32 return static_cast<CLASSNAME *>(ITERATOR::data_relative(offset));
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33 }
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34 CLASSNAME *forward() {
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35 return static_cast<CLASSNAME *>(ITERATOR::forward());
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36 }
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37 CLASSNAME *extract() {
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38 return static_cast<CLASSNAME *>(ITERATOR::extract());
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39 }
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40 };
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42 template <typename CONTAINER, typename ITERATOR, typename CLASSNAME>
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43 class X_LIST : public CONTAINER {
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44 public:
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45 X_LIST() = default;
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46 X_LIST(const X_LIST &) = delete;
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47 X_LIST &operator=(const X_LIST &) = delete;
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48 ~X_LIST() {
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49 clear();
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50 }
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52 /* delete elements */
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53 void clear() {
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54 CONTAINER::internal_clear([](void *link) {delete reinterpret_cast<CLASSNAME *>(link);});
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55 }
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57 /* Become a deep copy of src_list */
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58 template <typename U>
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59 void deep_copy(const U *src_list, CLASSNAME *(*copier)(const CLASSNAME *)) {
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60 X_ITER<ITERATOR, CLASSNAME> from_it(const_cast<U *>(src_list));
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61 X_ITER<ITERATOR, CLASSNAME> to_it(this);
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62
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63 for (from_it.mark_cycle_pt(); !from_it.cycled_list(); from_it.forward())
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64 to_it.add_after_then_move((*copier)(from_it.data()));
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65 }
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66 };
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68 } // namespace tesseract
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70 #endif