// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*- #ifndef __BIT_ARRAY_H__ #define __BIT_ARRAY_H__ /* * BitArray.h * zxing * * Copyright 2010 ZXing authors. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include #include #include #include namespace zxing { class BitArray : public Counted { private: size_t size_; std::vector bits_; static const unsigned int bitsPerWord_; static const unsigned int logBits_; static const unsigned int bitsMask_; static size_t wordsForBits(size_t bits); explicit BitArray(); public: BitArray(size_t size); ~BitArray(); size_t getSize(); bool get(size_t i) { return (bits_[i >> logBits_] & (1 << (i & bitsMask_))) != 0; } void set(size_t i) { bits_[i >> logBits_] |= 1 << (i & bitsMask_); } void setBulk(size_t i, unsigned int newBits); void setRange(int start, int end); void clear(); bool isRange(size_t start, size_t end, bool value); std::vector& getBitArray(); void reverse(); }; } #endif // __BIT_ARRAY_H__