#include "Ptr.h"

Ptr::Ptr(Pekad *pek):pointer(pek), count((pek)?new int(1):0){
}

Ptr::Ptr(const Ptr& other):pointer(other.pointer), count(other.count){
  if (pointer)
    (*count)++;
}

Ptr::~Ptr(){
  if (pointer && --*count == 0){
    delete count;
    delete pointer;
  }
}

Ptr& Ptr::operator=(const Ptr& other){
  if (pointer != other.pointer){
    if (pointer && --*count == 0){
      delete count;
      delete pointer;
    }
    pointer = other.pointer;
    count = other.count;
    if (pointer)
      ++*count;
  }
  return * this;
}