ftwo.cpp

#include "ftwo.H"
using namespace std;

F_2::F_2(){
  value= 0;
}

F_2::F_2(long n){
  value= n & 1;//n mod 2
}


  // arithmetic
F_2& F_2::operator+=(const F_2& that){
  value ^= that.value;
  return *this;
}

F_2 F_2::operator+(const F_2& that) const {
  return F_2( value ^ that.value );
}

F_2& F_2::operator-=(const F_2& that){
  value ^= that.value;
  return *this;
}

F_2 F_2::operator-(const F_2& that) const {
  return F_2( value ^ that.value );
}


F_2& F_2::operator*=(const F_2& that){
  value &= that.value;
  return *this;
}

F_2 F_2::operator*(const F_2& that) const {
  return F_2( value & that.value );
}

F_2& F_2::operator/=(const F_2& that){
  value &= that.value;
  return *this;
}

F_2 F_2::operator/(const F_2& that) const {
  return F_2( value & that.value );
}


F_2& F_2::operator-() {
  return *this;
}

F_2 F_2::operator-() const {
  return *this;
}


// comparison
bool F_2::operator<(const F_2& that) const {
  return value < that.value;
}

bool F_2::operator==(const F_2& that) const {
  return value == that.value;
}

bool F_2::operator!=(const F_2& that) const {
  return value != that.value;
}

  // printing
ostream& operator<<(ostream& os, const F_2& x){
    
  os << x.value;
  return os;
}

ofstream& operator<<(ofstream& file, F_2& x){

  file << x.value;
  return file;
}

void operator>>(ifstream& file, F_2& x){
  bool val;

  file >> val;
  x.value= val;
}





F_2 operator+(long n, const F_2& x){
  return F_2(n ^ x.value);
}


F_2 operator-(long n, const F_2& x){
  return F_2(n ^ x.value);
}

F_2 operator*(long n, const F_2& x){
  return F_2(n & x.value);
}

F_2 operator/(long n, const F_2& x){
  return F_2(n & x.value);
}

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