D.Alokacija-2011-prva parc-zad5-A

#include <iostream>
#include <string>

using namespace std;

template <typename Tipel>
Tipel** Grbava (Tipel niz[], int br_el)
{
    for (int i=0; i<br_el; i++) {
        if (niz[i]<0)
            throw "Broj elemenata niza mora biti pozitivan.";
    }
Tipel** pok=nullptr;
try{ pok=new Tipel *[br_el];
for (int i=0; i<br_el; i++) pok[i]=nullptr;
for (int i=0; i<br_el; i++) {
    pok[i]= new Tipel[niz[i]];
    for (int j=0; j<niz[i]; j++)
        pok[i][j]=Tipel ();
}
return pok;
}
catch(bad_alloc) {
throw "Greska prilikom alokacije.";
}
}
int main () {
int niz[5]={3,5,2,-1,6};

    int **mat (nullptr);
    try {mat=Grbava(niz,5);
    for (int i=0; i<5; i++) {
        for (int j=0; j<niz[i]; j++) cout<<mat[i][j];
        cout<<endl;
   }
   if (!mat) {
    for (int i=0; i<5; i++)
        delete [] mat[i];
        delete [] mat;
           }
    }
           catch(const char poruka[]) {
           cout<<"Greska: "<<poruka;
           }
           return 0;
}