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/**
* @file
* @brief Bit array data type.
*
* Just contains the operations required by los.cc
* for the moment.
**/
#ifndef BITARY_H
#define BITARY_H
#include "defines.h"
#include <bitset>
class bit_vector
{
public:
bit_vector(unsigned long size = 0);
bit_vector(const bit_vector& other);
~bit_vector();
void reset();
bool get(unsigned long index) const;
void set(unsigned long index, bool value = true);
bit_vector& operator |= (const bit_vector& other);
bit_vector& operator &= (const bit_vector& other);
bit_vector operator & (const bit_vector& other) const;
protected:
unsigned long size;
int nwords;
unsigned long *data;
};
#define LONGSIZE (sizeof(unsigned long)*8)
#ifndef ULONG_MAX
#define ULONG_MAX ((unsigned long)(-1))
#endif
template <unsigned int SIZE> class FixedBitVector
{
protected:
bitset<SIZE> data;
public:
void reset()
{
data.reset();
}
FixedBitVector()
{
}
inline bool get(unsigned int i) const
{
#ifdef ASSERTS
// printed as signed, as in FixedVector
if (i >= SIZE)
die("bit vector range error: %d / %u", (int)i, SIZE);
#endif
return data[i];
}
inline bool operator[](unsigned int i) const
{
return get(i);
}
inline void set(unsigned int i, bool value = true)
{
#ifdef ASSERTS
if (i >= SIZE)
die("bit vector range error: %d / %u", (int)i, SIZE);
#endif
data[i] = value;
}
inline unsigned int count() const
{
return data.count();
}
inline bool any() const
{
return data.any();
}
inline FixedBitVector<SIZE>& operator|=(const FixedBitVector<SIZE>&x)
{
data |= x.data;
return *this;
}
inline FixedBitVector<SIZE>& operator&=(const FixedBitVector<SIZE>&x)
{
data &= x.data;
return *this;
}
void init(bool value)
{
data.reset();
if (value)
data.flip();
}
};
template <unsigned int SIZEX, unsigned int SIZEY> class FixedBitArray
{
protected:
std::bitset<SIZEX*SIZEY> data;
public:
void reset()
{
data.reset();
}
void init(bool def)
{
data.reset();
if (def)
data.flip();
}
FixedBitArray()
{
reset();
}
FixedBitArray(bool def)
{
init(def);
}
inline bool get(int x, int y) const
{
#ifdef ASSERTS
// printed as signed, as in FixedArray
if (x < 0 || y < 0 || x >= (int)SIZEX || y >= (int)SIZEY)
die("bit array range error: %d,%d / %u,%u", x, y, SIZEX, SIZEY);
#endif
unsigned int i = y * SIZEX + x;
return data[i];
}
template<class Indexer> inline bool get(const Indexer &i) const
{
return get(i.x, i.y);
}
inline bool operator () (int x, int y) const
{
return get(x, y);
}
template<class Indexer> inline bool operator () (const Indexer &i) const
{
return get(i.x, i.y);
}
inline void set(int x, int y, bool value = true)
{
#ifdef ASSERTS
if (x < 0 || y < 0 || x >= (int)SIZEX || y >= (int)SIZEY)
die("bit array range error: %d,%d / %u,%u", x, y, SIZEX, SIZEY);
#endif
unsigned int i = y * SIZEX + x;
data[i] = value;
}
template<class Indexer> inline void set(const Indexer &i, bool value = true)
{
return set(i.x, i.y, value);
}
inline FixedBitArray<SIZEX, SIZEY>& operator|=(const FixedBitArray<SIZEX, SIZEY>&x)
{
data |= x.data;
return *this;
}
inline FixedBitArray<SIZEX, SIZEY>& operator&=(const FixedBitArray<SIZEX, SIZEY>&x)
{
data &= x.data;
return *this;
}
};
#endif
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