#include "C.h"

//--
C::C(int v) : _v(v), _pv(new int)
{
 *_pv = _v*2;
}

//--
C::C(const C& c)
{
 _copy(c);
}

//--
C& C::operator=(const C& c)
{
 if (this != &c)
 {
  _destroy();
  _copy(c);
 }
 return *this;
}

//--
C::~C(void)
{
 _destroy();
}

//--
bool operator==(const C& c1, const C& c2)
{
 if (c1._v != c2._v) return false;
 if (*c1._pv != *c2._pv) return false;

 return true;
}

//--
bool operator!=(const C& c1, const C& c2)
{
 return !(c1==c2);
}

//--
ostream& operator<<(ostream& os, const C& c)
{
 os << "(" << c._v << " " << *c._pv << ")";

 return os;
}

//--
void C::_copy(const C& c)
{
  _pv = new int;
   _v = c._v;
 *_pv = *c._pv;
}

//--
void C::_destroy(void)
{
 if (_pv) delete _pv;
}