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// file: bigint_vector.h
// update: 09/25/02
#ifndef _BIGINT_VECTOR_H
#define _BIGINT_VECTOR_H
#include <cassert>
#include <cstdlib>
#include <iostream>
#include "bigint.h"
using namespace std;
class bigint_vector
{
friend class bigrational_vector;
private:
unsigned long dim;
bigint* rep;
// arithmetic
bigint_vector add(const bigint_vector&) const;
bigint_vector sub(const bigint_vector&) const;
bigint_vector neg() const;
bigint in_prod(const bigint_vector&) const;
bigint_vector scalar_mul(const bigint&) const;
// comparison
int cmp(const bigint_vector&) const;
int is_zero() const;
public:
// constructor, assignment and destructor
bigint_vector(const unsigned long = 1);
bigint_vector(const unsigned long, const bigint*);
bigint_vector(const bigint_vector&);
bigint_vector& operator =(const bigint_vector&);
~bigint_vector();
// size
unsigned long get_dim() const;
// element
bigint& operator [](const unsigned long) const;
// arithmetic
friend bigint_vector operator +(const bigint_vector&, const bigint_vector&);
friend bigint_vector operator -(const bigint_vector&, const bigint_vector&);
friend bigint_vector operator -(const bigint_vector&);
friend bigint in_prod(const bigint_vector&, const bigint_vector&);
friend bigint_vector scalar_mul(const bigint&, const bigint_vector&);
// comparison
friend int operator ==(const bigint_vector&, const bigint_vector&);
friend int operator !=(const bigint_vector&, const bigint_vector&);
friend int is_zero(const bigint_vector&);
// arithemtic and assignment
bigint_vector& operator +=(const bigint_vector&);
bigint_vector& operator -=(const bigint_vector&);
// bigint_vector& scalar_mul_assign(const bigint&);
// stream
friend ostream& operator <<(ostream&, const bigint_vector&);
};
inline unsigned long bigint_vector :: get_dim() const
{
return dim;
}
inline bigint& bigint_vector :: operator [](const unsigned long n) const
{
assert(n < dim);
return rep[n];
}
#endif
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