Mercurial > hgrepos > Python2 > PyMuPDF
comparison mupdf-source/thirdparty/zxing-cpp/core/src/BitArray.cpp @ 2:b50eed0cc0ef upstream
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> |
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| date | Mon, 15 Sep 2025 11:43:07 +0200 |
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| 1:1d09e1dec1d9 | 2:b50eed0cc0ef |
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| 1 /* | |
| 2 * Copyright 2016 Nu-book Inc. | |
| 3 * Copyright 2016 ZXing authors | |
| 4 */ | |
| 5 // SPDX-License-Identifier: Apache-2.0 | |
| 6 | |
| 7 #include "BitArray.h" | |
| 8 | |
| 9 #include "ByteArray.h" | |
| 10 | |
| 11 #include <cstddef> | |
| 12 #include <stdexcept> | |
| 13 | |
| 14 namespace ZXing { | |
| 15 | |
| 16 void | |
| 17 BitArray::bitwiseXOR(const BitArray& other) | |
| 18 { | |
| 19 if (size() != other.size()) { | |
| 20 throw std::invalid_argument("BitArray::xor(): Sizes don't match"); | |
| 21 } | |
| 22 for (size_t i = 0; i < _bits.size(); i++) { | |
| 23 // The last int could be incomplete (i.e. not have 32 bits in | |
| 24 // it) but there is no problem since 0 XOR 0 == 0. | |
| 25 _bits[i] ^= other._bits[i]; | |
| 26 } | |
| 27 } | |
| 28 | |
| 29 ByteArray BitArray::toBytes(int bitOffset, int numBytes) const | |
| 30 { | |
| 31 ByteArray res(numBytes == -1 ? (size() - bitOffset + 7) / 8 : numBytes); | |
| 32 for (int i = 0; i < Size(res); i++) | |
| 33 for (int j = 0; j < 8; j++) | |
| 34 AppendBit(res[i], (numBytes != -1 || bitOffset < size()) ? get(bitOffset++) : 0); | |
| 35 return res; | |
| 36 } | |
| 37 | |
| 38 } // ZXing |