Mercurial > hgrepos > Python2 > PyMuPDF
diff 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> |
|---|---|
| date | Mon, 15 Sep 2025 11:43:07 +0200 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mupdf-source/thirdparty/zxing-cpp/core/src/BitArray.cpp Mon Sep 15 11:43:07 2025 +0200 @@ -0,0 +1,38 @@ +/* +* Copyright 2016 Nu-book Inc. +* Copyright 2016 ZXing authors +*/ +// SPDX-License-Identifier: Apache-2.0 + +#include "BitArray.h" + +#include "ByteArray.h" + +#include <cstddef> +#include <stdexcept> + +namespace ZXing { + +void +BitArray::bitwiseXOR(const BitArray& other) +{ + if (size() != other.size()) { + throw std::invalid_argument("BitArray::xor(): Sizes don't match"); + } + for (size_t i = 0; i < _bits.size(); i++) { + // The last int could be incomplete (i.e. not have 32 bits in + // it) but there is no problem since 0 XOR 0 == 0. + _bits[i] ^= other._bits[i]; + } +} + +ByteArray BitArray::toBytes(int bitOffset, int numBytes) const +{ + ByteArray res(numBytes == -1 ? (size() - bitOffset + 7) / 8 : numBytes); + for (int i = 0; i < Size(res); i++) + for (int j = 0; j < 8; j++) + AppendBit(res[i], (numBytes != -1 || bitOffset < size()) ? get(bitOffset++) : 0); + return res; +} + +} // ZXing