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/*
* bitvector.h
*
* Created on: Mar 31, 2010
* Author: dejan
*/
#ifndef __CVC4__BITVECTOR_H_
#define __CVC4__BITVECTOR_H_
#include <string>
#include <iostream>
#include "util/gmp_util.h"
namespace CVC4 {
class BitVector {
private:
unsigned d_size;
mpz_class d_value;
BitVector(unsigned size, const mpz_class& val) : d_size(size), d_value(val) {}
public:
BitVector(unsigned size = 0)
: d_size(size), d_value(0) {}
BitVector(unsigned size, unsigned int z)
: d_size(size), d_value(z) {}
BitVector(unsigned size, unsigned long int z)
: d_size(size), d_value(z) {}
BitVector(unsigned size, const BitVector& q)
: d_size(size), d_value(q.d_value) {}
~BitVector() {}
BitVector& operator =(const BitVector& x) {
if(this == &x)
return *this;
d_value = x.d_value;
return *this;
}
bool operator ==(const BitVector& y) const {
if (d_size != y.d_size) return false;
return d_value == y.d_value;
}
bool operator !=(const BitVector& y) const {
if (d_size == y.d_size) return false;
return d_value != y.d_value;
}
BitVector operator +(const BitVector& y) const {
return BitVector(std::max(d_size, y.d_size), d_value + y.d_value);
}
BitVector operator -(const BitVector& y) const {
return *this + ~y + 1;
}
BitVector operator -() const {
return ~(*this) + 1;
}
BitVector operator *(const BitVector& y) const {
return BitVector(d_size, d_value * y.d_value);
}
BitVector operator ~() const {
return BitVector(d_size, d_value);
}
size_t hash() const {
return gmpz_hash(d_value.get_mpz_t());
}
std::string toString(unsigned int base = 2) const {
return d_value.get_str(base);
}
};
struct BitVectorHashStrategy {
static inline size_t hash(const BitVector& bv) {
return bv.hash();
}
};
std::ostream& operator <<(std::ostream& os, const BitVector& bv);
}
#endif /* __CVC4__BITVECTOR_H_ */
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