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operator= ...what's wrong?

fyodor (11)
Hello! i want to define operator=...and i don't know what is wrong! just look:
.h
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class Tablica
{
      private:
              int *bufor;
              int rozmiar;
      public:
             Tablica(int rozmiar);
             ~Tablica();
             int PobierzRozmiar() const {return rozmiar;}
             Tablica &operator=(const Tablica&);
};

and .cpp
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using namespace std;

Tablica::Tablica(int rozmiar)
{
     if (rozmiar<0) /*throw F()*/;
     if (rozmiar==0) /*throw E()*/;
     if (rozmiar<10) /*throw D()*/;
     if (rozmiar>1000) /*throw C()*/;
     
     bufor=new int[rozmiar];
}

Tablica::~Tablica()
{
     delete []bufor;
}

Tablica& Tablica::operator=(const Tablica &tablica)
{
     if(this==&tablica) return *this;
     rozmiar=tablica.PobierzRozmiar();
     delete [] bufor;
     bufor=new int[rozmiar];
     for (int i=0; i<rozmiar; i++)
     {
         bufor[i]=tablica[i];
     }
     return *this;
}


no match for 'operator[]' in 'tablica[i]' <----that's the error... i don't know why?! can you tell me??
kbw (9488)
Line 26: bufor[i]=tablica.bufor[i];
fyodor (11)
thank you!:)
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