mirror of
https://github.com/status-im/qzxing.git
synced 2025-02-12 10:56:47 +00:00
82 lines
1.9 KiB
C++
82 lines
1.9 KiB
C++
// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
|
|
#ifndef __BIT_ARRAY_H__
|
|
#define __BIT_ARRAY_H__
|
|
|
|
/*
|
|
* 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 <zxing/ZXing.h>
|
|
#include <zxing/common/Counted.h>
|
|
#include <zxing/common/IllegalArgumentException.h>
|
|
#include <zxing/common/Array.h>
|
|
#include <vector>
|
|
#include <limits>
|
|
#include <iostream>
|
|
|
|
namespace zxing {
|
|
|
|
class BitArray : public Counted {
|
|
public:
|
|
static const int bitsPerWord = std::numeric_limits<unsigned int>::digits;
|
|
|
|
private:
|
|
int size;
|
|
ArrayRef<int> bits;
|
|
static const int logBits = ZX_LOG_DIGITS(bitsPerWord);
|
|
static const int bitsMask = (1 << logBits) - 1;
|
|
|
|
public:
|
|
BitArray(int size);
|
|
~BitArray();
|
|
int getSize() const;
|
|
|
|
bool get(int i) const {
|
|
return (bits[i >> logBits] & (1 << (i & bitsMask))) != 0;
|
|
}
|
|
|
|
void set(int i) {
|
|
bits[i >> logBits] |= 1 << (i & bitsMask);
|
|
}
|
|
|
|
int getNextSet(int from);
|
|
int getNextUnset(int from);
|
|
|
|
void setBulk(int i, int newBits);
|
|
void setRange(int start, int end);
|
|
void clear();
|
|
bool isRange(int start, int end, bool value);
|
|
std::vector<int>& getBitArray();
|
|
|
|
void reverse();
|
|
|
|
class Reverse {
|
|
private:
|
|
Ref<BitArray> array;
|
|
public:
|
|
Reverse(Ref<BitArray> array);
|
|
~Reverse();
|
|
};
|
|
|
|
private:
|
|
static int makeArraySize(int size);
|
|
};
|
|
|
|
std::ostream& operator << (std::ostream&, BitArray const&);
|
|
|
|
}
|
|
|
|
#endif // __BIT_ARRAY_H__
|