[c++] Problem z podprogramom

void human::brisi_element(human vm[], short & k) {
    int clan;
    bool prav;


    cout << endl;
    cout << "    + Vnesite stevilko ID avta za izbris!" << endl<<endl;
    cout << "    + Avto ID: ";
    cin >> clan;
    cout << endl;

    if ((clan != 0) && (clan <= k)) {
        clan--;
        for (clan; clan < k; clan++)
            vm[clan] = vm[clan + 1];
        k--;
        cout << "    + Brisanje uspesno!" << endl;
    }
    else if (clan > k) {
        cout << "    + Vneseno stevilo ni ustrezno!" << endl;
    }

}

void izbira_brisanja(human hu[], short koolko) {
    char bes; 
    string neke;
    do {
        cout << endl; 
        cout << "    --------------Meni sortiranja---------" << endl; //1.k
        cout << endl;
        cout << "    +     a:) Brisi vnos                 +" << endl;
        cout << "    +     b:) Vrni se v glavni meni      +" << endl;
        cout << endl;
        cout << "    --------------------------------------" << endl;
        cout << endl;
        cout << "    + Podaj ukaz: ";
        getline(cin, neke); //2.k denis
        cout << endl;
        if (neke.length() == 1)bes = neke[0]; //prilagoditev
        if (!(((bes >= 'a') && (bes <= 'c') || (bes >= 'A') && (bes <= 'C')))) cout <<    
     "+ Vnesen podatek ni pravilen, prosim ponovi vnos!" << endl; //napaka
    }while (!(((bes >= 'a') && (bes <= 'c') || (bes >= 'A') && (bes <= 'C')))); //negacija


    if (bes == 'a' || bes == 'A') 
    {
        hu[0].brisi_element(hu, koolko);
    }
    if (bes == 'b' || bes == 'B')
    {
        cout << "    + Sedaj si v glavnem meniju!" << endl;
    }

}