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Contents
// -*- 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__
Version data entries
5 entries across 5 versions & 3 rubygems