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